- The document analyzes quantitative and qualitative characteristics of three common carp strains in Indonesia: mirror carp, majalaya carp, and sinyonya carp.
- Sinyonya carp had the highest fecundity but lowest early development performances. Majalaya carp had the best survival and growth rates in nursery phase.
- During culture period, sinyonya carp had the highest fillet percentage and protein content but lowest total number of muscular bones and lipid content.
Ratio « number of males on number of females » for the mass production of Sar...Innspub Net
The appropriate proportion of male and female parents that give a highest number of juveniles is a major concern in tilapia culture Sarotherodon melanotheron due to the oral incubation by males. A study of the ratio “number of males to number of females” on fingerlings production has been performed in order to determine the optimal ratio for S. melanotheron. Five ratios were tested : R1 (1 male to 2 females), R2 (1 male to 3 females), R3 (2 males to 2 females), R4 (2 males to 4 females) and R5 (2 males to 6 females). The experimental device consists of five concrete tanks (1m x 1m x 60cm) filled to 2/3, about 0.17m3 of water. The fish are fed three times a day with a diet containing 35% crude protein. Once a week, the fertilized eggs are collected and incubated in a tank. The hatching rate and larval growth are followed. The experiment was duplicated and lasted 6 weeks to harvest eggs and 40 days to track the growth of larvae. The results show that the number of egg laying is significantly different from a ratio to each other (p ˂ 0.05) and increases with the number of males and females. The highest number of egg laying is obtained with R5 ratio “2 males to 6 females” that seems best for the mass production of juveniles of S. melanotheron. These results provide a basis for the intensive production of S. melanotheron for the aquaculture development in lagoon.
This document summarizes a study on habitat selection of pupation height and its correlation with abdominal melanization and desiccation resistance in nine altitudinal populations of Drosophila melanogaster from India. The study found that pupation height, abdominal melanization, and desiccation resistance increased with increasing altitude. Genetic correlations between abdominal melanization and desiccation resistance were also significantly high and varied with altitude. The results suggest that habitat selection of higher pupation heights and correlated increases in abdominal melanization confer greater desiccation resistance in high altitude populations as an adaptation to their environment.
Ecobiology of the Common Pierrot Castalius rosimon (Fabricius) (Lepidoptera: ...Dr Palem Harinath Reddy
This document summarizes a study on the ecobiology of the Common Pierrot butterfly (Castalius rosimon). Some key findings include:
- C. rosimon lays eggs singly on the leaves of the Zizyphus jujuba plant. The entire lifecycle from egg to adult takes 21-25 days.
- Population levels are highest during September to November (post-monsoon season) in the study area of Lankamalai, India.
- The larvae go through 4 instar stages over 14-18 days. Food consumption and growth rates increase with each instar. Nutritional indices like approximate digestibility and efficiency of conversion decrease with larval development.
Comparison of carcass and meat characteristics of three rabbit lines selected...Amparo Grimal Molina
Rabbits from three synthetic lines were compared. Line V and A were selected for litter size at weaning and line R was selected for growth rate between weaning and slaughter time. Forty animals of each line were slaughtered at 9 week of age. Comparisons between lines were made using Bayesian statistical techniques.
ABSTRACT— Evidence is that the Lunar cycle entrain crustacean biological rhythms in briefly reviewed. Egg laying and hatching undergo semi-lunar and monthly rhythms that appear to depend on endogenous clocks. The lunar cycle can be understood in terms of adaptation and life post larvae n = 150 hatched during March 2002 and rared artificially. Their moulting frequency was monitored from day 112 post hatch to day 204 (CL = 20mm + 1.55 SD.) Daily moults (n=25) recorded individually during July, August and September showed an average duration for the first and second inter moult internal of 34 to 36 days respectively. Daily moulting frequency distribution showed and trend characterized by peak values around new moon and full moon in the absence of any tidal condition. The pattern for commonly rared female crab is more natural water temperature affecting the rhythm. However it is model or many average value of over 24 hours sampling period support the presence of semilunar cycle. The cycle is main-tained under laboratory could sublittroral population that are not rhythm may represent the powerful clock that is retained for synchronizing events throughout the life history of crustaceans. It results in reduced preparation risks for hatchery in dark new moon night & favour dispersed during spring tides due to tidal carrent. This may enhance mutual protection against habits simultenously juveniles
Heterosis of body weights and egg weights of f1 snails (archachatina marginat...Alexander Decker
This study evaluated heterosis (hybrid vigor) of body weights and egg weights in three mating groups of Archachatina marginata snails - a black-skinned x black-skinned group, a white-skinned x white-skinned group, and a black-skinned x white-skinned crossbred group. All groups showed positive heterosis for body weight at hatching and in juvenile stages up to 4 weeks, with the crossbred group showing significantly higher values. Similarly, all groups showed positive heterosis for egg weight, with the crossbred group having a significantly higher value of 60.77%. The results suggest that heterosis can be exploited to improve snail growth and reproductive traits through selective breeding
Genetic variability in the macaw palm germplasm accessions revealed by micros...AcessoMacauba
This study assessed genetic variability in macaw palm (Acrocomia aculeata) accessions conserved in a germplasm bank using microsatellite markers. A total of 196 individuals from 45 families originating from six Brazilian states were analyzed at eight microsatellite loci. Higher genetic variation was found among families (54%) than within families (46%). Four distinct groups of families were identified based on their geographic origin. Analysis of accessions from Minas Gerais alone found most variability (81%) within families. The results show high genetic variability among families from different states which should be conserved, while variability within accessions in the germplasm bank also needs maintenance to aid pre-breeding and selection efforts.
This document summarizes a student research project that studied the mode of transmission of the green fluorescent protein (GFP) gene in GloFish, a genetically modified zebrafish. The student conducted a reciprocal cross experiment involving male and female mutant GloFish and wild type zebrafish. By observing the expression of GFP in the offspring (F1 generation), the student determined that the GFP gene is autosomal dominant and not sex-linked. The experiment also found evidence of maternal effect, though sex-linkage was not present. This experiment provided novel insights into how sex may influence the mode of transmission of traits in GloFish.
Ratio « number of males on number of females » for the mass production of Sar...Innspub Net
The appropriate proportion of male and female parents that give a highest number of juveniles is a major concern in tilapia culture Sarotherodon melanotheron due to the oral incubation by males. A study of the ratio “number of males to number of females” on fingerlings production has been performed in order to determine the optimal ratio for S. melanotheron. Five ratios were tested : R1 (1 male to 2 females), R2 (1 male to 3 females), R3 (2 males to 2 females), R4 (2 males to 4 females) and R5 (2 males to 6 females). The experimental device consists of five concrete tanks (1m x 1m x 60cm) filled to 2/3, about 0.17m3 of water. The fish are fed three times a day with a diet containing 35% crude protein. Once a week, the fertilized eggs are collected and incubated in a tank. The hatching rate and larval growth are followed. The experiment was duplicated and lasted 6 weeks to harvest eggs and 40 days to track the growth of larvae. The results show that the number of egg laying is significantly different from a ratio to each other (p ˂ 0.05) and increases with the number of males and females. The highest number of egg laying is obtained with R5 ratio “2 males to 6 females” that seems best for the mass production of juveniles of S. melanotheron. These results provide a basis for the intensive production of S. melanotheron for the aquaculture development in lagoon.
This document summarizes a study on habitat selection of pupation height and its correlation with abdominal melanization and desiccation resistance in nine altitudinal populations of Drosophila melanogaster from India. The study found that pupation height, abdominal melanization, and desiccation resistance increased with increasing altitude. Genetic correlations between abdominal melanization and desiccation resistance were also significantly high and varied with altitude. The results suggest that habitat selection of higher pupation heights and correlated increases in abdominal melanization confer greater desiccation resistance in high altitude populations as an adaptation to their environment.
Ecobiology of the Common Pierrot Castalius rosimon (Fabricius) (Lepidoptera: ...Dr Palem Harinath Reddy
This document summarizes a study on the ecobiology of the Common Pierrot butterfly (Castalius rosimon). Some key findings include:
- C. rosimon lays eggs singly on the leaves of the Zizyphus jujuba plant. The entire lifecycle from egg to adult takes 21-25 days.
- Population levels are highest during September to November (post-monsoon season) in the study area of Lankamalai, India.
- The larvae go through 4 instar stages over 14-18 days. Food consumption and growth rates increase with each instar. Nutritional indices like approximate digestibility and efficiency of conversion decrease with larval development.
Comparison of carcass and meat characteristics of three rabbit lines selected...Amparo Grimal Molina
Rabbits from three synthetic lines were compared. Line V and A were selected for litter size at weaning and line R was selected for growth rate between weaning and slaughter time. Forty animals of each line were slaughtered at 9 week of age. Comparisons between lines were made using Bayesian statistical techniques.
ABSTRACT— Evidence is that the Lunar cycle entrain crustacean biological rhythms in briefly reviewed. Egg laying and hatching undergo semi-lunar and monthly rhythms that appear to depend on endogenous clocks. The lunar cycle can be understood in terms of adaptation and life post larvae n = 150 hatched during March 2002 and rared artificially. Their moulting frequency was monitored from day 112 post hatch to day 204 (CL = 20mm + 1.55 SD.) Daily moults (n=25) recorded individually during July, August and September showed an average duration for the first and second inter moult internal of 34 to 36 days respectively. Daily moulting frequency distribution showed and trend characterized by peak values around new moon and full moon in the absence of any tidal condition. The pattern for commonly rared female crab is more natural water temperature affecting the rhythm. However it is model or many average value of over 24 hours sampling period support the presence of semilunar cycle. The cycle is main-tained under laboratory could sublittroral population that are not rhythm may represent the powerful clock that is retained for synchronizing events throughout the life history of crustaceans. It results in reduced preparation risks for hatchery in dark new moon night & favour dispersed during spring tides due to tidal carrent. This may enhance mutual protection against habits simultenously juveniles
Heterosis of body weights and egg weights of f1 snails (archachatina marginat...Alexander Decker
This study evaluated heterosis (hybrid vigor) of body weights and egg weights in three mating groups of Archachatina marginata snails - a black-skinned x black-skinned group, a white-skinned x white-skinned group, and a black-skinned x white-skinned crossbred group. All groups showed positive heterosis for body weight at hatching and in juvenile stages up to 4 weeks, with the crossbred group showing significantly higher values. Similarly, all groups showed positive heterosis for egg weight, with the crossbred group having a significantly higher value of 60.77%. The results suggest that heterosis can be exploited to improve snail growth and reproductive traits through selective breeding
Genetic variability in the macaw palm germplasm accessions revealed by micros...AcessoMacauba
This study assessed genetic variability in macaw palm (Acrocomia aculeata) accessions conserved in a germplasm bank using microsatellite markers. A total of 196 individuals from 45 families originating from six Brazilian states were analyzed at eight microsatellite loci. Higher genetic variation was found among families (54%) than within families (46%). Four distinct groups of families were identified based on their geographic origin. Analysis of accessions from Minas Gerais alone found most variability (81%) within families. The results show high genetic variability among families from different states which should be conserved, while variability within accessions in the germplasm bank also needs maintenance to aid pre-breeding and selection efforts.
This document summarizes a student research project that studied the mode of transmission of the green fluorescent protein (GFP) gene in GloFish, a genetically modified zebrafish. The student conducted a reciprocal cross experiment involving male and female mutant GloFish and wild type zebrafish. By observing the expression of GFP in the offspring (F1 generation), the student determined that the GFP gene is autosomal dominant and not sex-linked. The experiment also found evidence of maternal effect, though sex-linkage was not present. This experiment provided novel insights into how sex may influence the mode of transmission of traits in GloFish.
Here is a made-up incomplete dominance problem:
Flower petal color:
RR = Red petals
YY = Yellow petals
RY = Orange petals
Cross a red-petaled flower with a yellow-petaled flower. Show the Punnett square and phenotype ratios.
When the need of the hour is smart thinking, swift action and effective people skills – can we develop these qualities more effectively in an experiential setting than through classroom training.
This document discusses multiple alleles and uses blood type as an example. It explains that while Mendel's work showed genes were controlled by two alleles, later research found some traits were controlled by more than two alleles. The ABO blood type system has three alleles - IA causes A antigen, IB causes B antigen, and i causes neither. People with genotypes IAIA or IAi have type A blood, IBIB or IBi have type B, and IAIB have type AB while ii have type O. The document provides an example using a couple with blood type AB to demonstrate possible genotypes and phenotypes of their children.
Gregor Johann Mendel (1822-1884) was an Augustinian monk and scientist who conducted breeding experiments with pea plants between 1856-1863. He cultivated and tested over 28,000 pea plants, finding that their offspring retained traits from their parents. Mendel's experiments led him to propose the laws of inheritance and hypothesize that traits are transmitted by "particles" (now known as genes). Although his work was largely ignored during his lifetime, it formed the foundation of modern genetics when it was rediscovered in 1900.
Java does not support multiple inheritance through classes but does support multiple inheritance through interfaces. The document discusses inheritance, provides an example of single inheritance in Java, and defines multiple inheritance. It then discusses why Java does not support multiple inheritance through classes due to the "diamond problem". The document explains that Java supports multiple inheritance through interfaces by allowing interfaces to define default methods from Java 8 onwards, providing an example. It also discusses how the "diamond problem" can be resolved while using multiple inheritance through interfaces in Java.
Cells are the basic unit of structure and function in human bodies. They contain specialized structures called organelles that perform specific functions. The cell membrane controls what enters and exits the cell. Movement across the membrane occurs through diffusion, osmosis, and active/passive transport. The nucleus houses DNA and controls cell activities. Other organelles such as mitochondria, endoplasmic reticulum, Golgi apparatus, lysosomes, and ribosomes help synthesize proteins and carry out metabolic functions. Cells reproduce through mitosis and differentiate during development. Aging and death are normal cellular processes.
Gregor Mendel conducted early experiments in genetics using pea plants. He discovered two laws of heredity:
1) The Law of Segregation states that alleles for a trait separate during gamete formation so each gamete carries one allele.
2) The Law of Independent Assortment states that each trait assorts independently of other traits during gamete formation.
Through his experiments, Mendel established the foundations of classical genetics and heredible traits being passed from parents to offspring via discrete units now known as genes.
This document discusses pedigree analysis and Mendelian inheritance patterns. It begins by describing Mendel's laws of segregation and independent assortment. It then provides examples of traits Mendel studied and traits in Drosophila that follow dominant and recessive patterns. The document discusses how human genetic diseases can be caused by recessive alleles. It provides details on lethal and conditional lethal alleles. The remainder of the document focuses on cystic fibrosis as a recessive genetic disease, explaining how the defective CF gene causes the condition. It concludes by describing how pedigree analysis is used to determine inheritance patterns of human traits and genetic diseases.
This chapter discusses heredity and evolution. It covers Mendel's principles of inheritance including segregation and independent assortment. Examples of Mendelian traits in humans like cystic fibrosis and sickle cell anemia are provided. Non-Mendelian inheritance patterns and mitochondrial inheritance are also discussed. The chapter then explores modern evolutionary theory including the definition of evolution, factors that produce variation, and how natural selection acts on variation.
This document discusses some of the problems that can arise with multiple inheritance in object-oriented programming, including name ambiguity when classes have methods with the same name, issues with inheritance from common ancestors, and how inner classes can provide an alternative to multiple inheritance without the same semantic problems. It provides examples and potential solutions to demonstrate these problems.
It is a powerpoint presentation that discusses about the lesson or topic: Mendelian Inheritance. It also talks about the definition, history and the laws included in the Mendelian Inheritance or Mendelian Genetics.
This document discusses multiple inheritance in C++. It provides a brief history of multiple inheritance in C++ and discusses some of the myths and controversies around it. It also covers the object model and implementation of multiple inheritance, virtual functions, ambiguities, and overheads. The document concludes that multiple inheritance is not actually that hard to implement or use and does not significantly complicate the language if certain rules are followed.
Polygenic inheritance involves multiple genes contributing to a trait, as opposed to single-gene inheritance. It can result in continuous variation, where a wide range of phenotypes exist between extremes. Human skin color and wheat seed color are examples of polygenic traits that show continuous variation, with skin color determined by 3-4 genes influencing melanin production and seed color by 3 genes determining red pigment levels.
Polygenic inheritance is when a single trait is controlled by multiple genes. Most human traits related to size, shape, and color are polygenic. A cross between parents that are heterozygous for three genes (AaBbCc x AaBbCc) would produce offspring with different combinations of dominant and recessive alleles, leading to a range of phenotypes. The number of dominant alleles an individual possesses determines how strongly or darkly a polygenic trait is expressed.
The document provides instructions for determining linkage and mapping distances between genes using three-point crosses. It explains how to identify parental and recombinant classes, determine gene order based on double recombinants, and calculate map distances. For the example three-point cross, the parental classes are identified as calm, five, smooth and dithery, four, grizzled. The double recombinants indicate the gene order is five-calm-smooth. Map distances are calculated as 10 LMU between five and calm loci and 13 LMU between calm and smooth loci.
This document discusses genetic linkage and crossing over during meiosis. It defines linkage as genes located near each other on the same chromosome tending to be inherited together. Crossing over occurs when non-sister chromatids exchange genetic material, producing new allele combinations and reducing linkage. The arrangement of alleles on homologous chromosomes, whether in coupling or repulsion phase, determines the outcome of crosses between linked genes. Recombination frequency is used to measure linkage and construct genetic maps showing gene order on chromosomes.
This document discusses Mendelian and non-Mendelian inheritance. It provides examples of cytoplasmic inheritance including the inheritance of chloroplast genes in Mirabilis jalapa, where the phenotype is determined by the genotype of the female parent through cytoplasmic/plastid transmission, not the genes in the nucleus. It also discusses inheritance involving cytoplasmic particles like kappa particles in Paramecium, which are transmitted maternally but whose production is controlled by nuclear genes. The key differences between Mendelian and non-Mendelian inheritance are summarized in a table.
This document discusses several forms of non-Mendelian inheritance including incomplete dominance where traits show a combined phenotype, co-dominance where offspring exhibit both parental traits together, multiple alleles where more than two alleles can code for a trait, maternal and paternal effects where the parent's environment or genotype influences the offspring's phenotype, epigenetic inheritance involving modification to genes or chromosomes early in development, and gene conversion being a DNA recombination process that transfers sequence information between DNA helices.
Growth and protein content of mud crabs (Scylla serrata) fed with different n...Innspub Net
Mud crab (Scylla serrata) farming is one of the main sources of livelihood in Calauag, Quezon. Commonly, they use trash fish as their major source of feeds for mud crabs. However, fluctuation on its prices happen because of supply and demand, thus the use of other natural feeds were conceptualized. This aimed to determine if there are significant differences on the weight, protein content and meat characteristics of mud crabs fed with different natural feeds. It also aimed to assess the profitability of mud crab farming in plastic cages using different natural feeds. The experiment was laid out in Complete Randomized Design with three treatments replicated thrice: T1 – trash fish, T2 – horn snail meat and T3 – yellow corn. Results revealed that mud crabs fed with horn snail had the highest weight and protein content as compared to the other treatments. Hence, had the highest ROI. While, in the sensory analysis of its meat characteristics, mud crabs fed with yellow corn had the highest mean which was rated as very much juicy, flavorful and very much acceptable.
1) The study investigated the effects of feeding microbial inoculated corn silage (MICS) versus regular corn silage (CS) on growth performance, age at puberty, and fertility of Rahmani sheep.
2) Lambs fed MICS reached puberty earlier, had higher body weights and condition scores, and produced higher quality semen than those fed CS.
3) Ewes and rams fed MICS also showed improved fertility, with higher pregnancy rates, litter sizes, and semen quality compared to the control group fed CS.
Here is a made-up incomplete dominance problem:
Flower petal color:
RR = Red petals
YY = Yellow petals
RY = Orange petals
Cross a red-petaled flower with a yellow-petaled flower. Show the Punnett square and phenotype ratios.
When the need of the hour is smart thinking, swift action and effective people skills – can we develop these qualities more effectively in an experiential setting than through classroom training.
This document discusses multiple alleles and uses blood type as an example. It explains that while Mendel's work showed genes were controlled by two alleles, later research found some traits were controlled by more than two alleles. The ABO blood type system has three alleles - IA causes A antigen, IB causes B antigen, and i causes neither. People with genotypes IAIA or IAi have type A blood, IBIB or IBi have type B, and IAIB have type AB while ii have type O. The document provides an example using a couple with blood type AB to demonstrate possible genotypes and phenotypes of their children.
Gregor Johann Mendel (1822-1884) was an Augustinian monk and scientist who conducted breeding experiments with pea plants between 1856-1863. He cultivated and tested over 28,000 pea plants, finding that their offspring retained traits from their parents. Mendel's experiments led him to propose the laws of inheritance and hypothesize that traits are transmitted by "particles" (now known as genes). Although his work was largely ignored during his lifetime, it formed the foundation of modern genetics when it was rediscovered in 1900.
Java does not support multiple inheritance through classes but does support multiple inheritance through interfaces. The document discusses inheritance, provides an example of single inheritance in Java, and defines multiple inheritance. It then discusses why Java does not support multiple inheritance through classes due to the "diamond problem". The document explains that Java supports multiple inheritance through interfaces by allowing interfaces to define default methods from Java 8 onwards, providing an example. It also discusses how the "diamond problem" can be resolved while using multiple inheritance through interfaces in Java.
Cells are the basic unit of structure and function in human bodies. They contain specialized structures called organelles that perform specific functions. The cell membrane controls what enters and exits the cell. Movement across the membrane occurs through diffusion, osmosis, and active/passive transport. The nucleus houses DNA and controls cell activities. Other organelles such as mitochondria, endoplasmic reticulum, Golgi apparatus, lysosomes, and ribosomes help synthesize proteins and carry out metabolic functions. Cells reproduce through mitosis and differentiate during development. Aging and death are normal cellular processes.
Gregor Mendel conducted early experiments in genetics using pea plants. He discovered two laws of heredity:
1) The Law of Segregation states that alleles for a trait separate during gamete formation so each gamete carries one allele.
2) The Law of Independent Assortment states that each trait assorts independently of other traits during gamete formation.
Through his experiments, Mendel established the foundations of classical genetics and heredible traits being passed from parents to offspring via discrete units now known as genes.
This document discusses pedigree analysis and Mendelian inheritance patterns. It begins by describing Mendel's laws of segregation and independent assortment. It then provides examples of traits Mendel studied and traits in Drosophila that follow dominant and recessive patterns. The document discusses how human genetic diseases can be caused by recessive alleles. It provides details on lethal and conditional lethal alleles. The remainder of the document focuses on cystic fibrosis as a recessive genetic disease, explaining how the defective CF gene causes the condition. It concludes by describing how pedigree analysis is used to determine inheritance patterns of human traits and genetic diseases.
This chapter discusses heredity and evolution. It covers Mendel's principles of inheritance including segregation and independent assortment. Examples of Mendelian traits in humans like cystic fibrosis and sickle cell anemia are provided. Non-Mendelian inheritance patterns and mitochondrial inheritance are also discussed. The chapter then explores modern evolutionary theory including the definition of evolution, factors that produce variation, and how natural selection acts on variation.
This document discusses some of the problems that can arise with multiple inheritance in object-oriented programming, including name ambiguity when classes have methods with the same name, issues with inheritance from common ancestors, and how inner classes can provide an alternative to multiple inheritance without the same semantic problems. It provides examples and potential solutions to demonstrate these problems.
It is a powerpoint presentation that discusses about the lesson or topic: Mendelian Inheritance. It also talks about the definition, history and the laws included in the Mendelian Inheritance or Mendelian Genetics.
This document discusses multiple inheritance in C++. It provides a brief history of multiple inheritance in C++ and discusses some of the myths and controversies around it. It also covers the object model and implementation of multiple inheritance, virtual functions, ambiguities, and overheads. The document concludes that multiple inheritance is not actually that hard to implement or use and does not significantly complicate the language if certain rules are followed.
Polygenic inheritance involves multiple genes contributing to a trait, as opposed to single-gene inheritance. It can result in continuous variation, where a wide range of phenotypes exist between extremes. Human skin color and wheat seed color are examples of polygenic traits that show continuous variation, with skin color determined by 3-4 genes influencing melanin production and seed color by 3 genes determining red pigment levels.
Polygenic inheritance is when a single trait is controlled by multiple genes. Most human traits related to size, shape, and color are polygenic. A cross between parents that are heterozygous for three genes (AaBbCc x AaBbCc) would produce offspring with different combinations of dominant and recessive alleles, leading to a range of phenotypes. The number of dominant alleles an individual possesses determines how strongly or darkly a polygenic trait is expressed.
The document provides instructions for determining linkage and mapping distances between genes using three-point crosses. It explains how to identify parental and recombinant classes, determine gene order based on double recombinants, and calculate map distances. For the example three-point cross, the parental classes are identified as calm, five, smooth and dithery, four, grizzled. The double recombinants indicate the gene order is five-calm-smooth. Map distances are calculated as 10 LMU between five and calm loci and 13 LMU between calm and smooth loci.
This document discusses genetic linkage and crossing over during meiosis. It defines linkage as genes located near each other on the same chromosome tending to be inherited together. Crossing over occurs when non-sister chromatids exchange genetic material, producing new allele combinations and reducing linkage. The arrangement of alleles on homologous chromosomes, whether in coupling or repulsion phase, determines the outcome of crosses between linked genes. Recombination frequency is used to measure linkage and construct genetic maps showing gene order on chromosomes.
This document discusses Mendelian and non-Mendelian inheritance. It provides examples of cytoplasmic inheritance including the inheritance of chloroplast genes in Mirabilis jalapa, where the phenotype is determined by the genotype of the female parent through cytoplasmic/plastid transmission, not the genes in the nucleus. It also discusses inheritance involving cytoplasmic particles like kappa particles in Paramecium, which are transmitted maternally but whose production is controlled by nuclear genes. The key differences between Mendelian and non-Mendelian inheritance are summarized in a table.
This document discusses several forms of non-Mendelian inheritance including incomplete dominance where traits show a combined phenotype, co-dominance where offspring exhibit both parental traits together, multiple alleles where more than two alleles can code for a trait, maternal and paternal effects where the parent's environment or genotype influences the offspring's phenotype, epigenetic inheritance involving modification to genes or chromosomes early in development, and gene conversion being a DNA recombination process that transfers sequence information between DNA helices.
Growth and protein content of mud crabs (Scylla serrata) fed with different n...Innspub Net
Mud crab (Scylla serrata) farming is one of the main sources of livelihood in Calauag, Quezon. Commonly, they use trash fish as their major source of feeds for mud crabs. However, fluctuation on its prices happen because of supply and demand, thus the use of other natural feeds were conceptualized. This aimed to determine if there are significant differences on the weight, protein content and meat characteristics of mud crabs fed with different natural feeds. It also aimed to assess the profitability of mud crab farming in plastic cages using different natural feeds. The experiment was laid out in Complete Randomized Design with three treatments replicated thrice: T1 – trash fish, T2 – horn snail meat and T3 – yellow corn. Results revealed that mud crabs fed with horn snail had the highest weight and protein content as compared to the other treatments. Hence, had the highest ROI. While, in the sensory analysis of its meat characteristics, mud crabs fed with yellow corn had the highest mean which was rated as very much juicy, flavorful and very much acceptable.
1) The study investigated the effects of feeding microbial inoculated corn silage (MICS) versus regular corn silage (CS) on growth performance, age at puberty, and fertility of Rahmani sheep.
2) Lambs fed MICS reached puberty earlier, had higher body weights and condition scores, and produced higher quality semen than those fed CS.
3) Ewes and rams fed MICS also showed improved fertility, with higher pregnancy rates, litter sizes, and semen quality compared to the control group fed CS.
Evaluation of some reproduction performances of the exotic Hyplus rabbit (Ory...Open Access Research Paper
The objective of the study was to evaluate the reproductive performance and estimate the genetic parameters, in a real environment, of the rabbit of the exotic Hyplus breed. The study will allow appreciating the parameters that could be the object of genetic improvement in view of a selection to produce a more efficient rabbit. The work took place at the SAP Mé d’Adzopé farm from January 2013 to June 2015. One hundred and twenty breeding does were followed for five successive generations of five parities each, with an interval of 11 days between the parturition and the next mating with weaning at 30 days. These females produced 5283 total born rabbits with 5164 born alive and 4732 weaned. The genetic parameters including heritability, genetic, phenotypic and non-genetic correlations (environmental effects) did analyzed using the Derivative Free Restricted Maximum Likelihood program. The results obtained showed that the receptivity and fertility rates did significantly influenced by the order of parity and the season of kindling. The pre-weaning mortality rate was 8.37%. Females had the best prolificacies’ between the second and fourth parity, with an average of 9.9, 10.19 and 9.79 kits respectively. The heritability values of young rabbits total born alive, born alive, weaned and old rabbits were 0.22; 0.20; 0.16 and 0.12 respectively. These results showed that selection is possible for these studied traits.
Induced ovulation and spawning of a striped snakehead murrel, Channa striatus...researchanimalsciences
Induced breeding of the striped snakehead Murrel, C hanna striatus (Bloch, 1793) was attempted during October to December 2009 (North - east monsoon). The breeding attempt was made using natural hormone Human Chorionic Gonadotropin (HCG). Two trials using fibre tanks of different capacity in triplicates were made to observe the effects of different doses of HCG on induced spawning of C. striatus . The fishes which received a dosage of 6000 IU/kg body weight gave satisfactory results. The ovulation was recorded after 19 -
29 h of the injection. The fertilization rate was observed as 40 80%. Hatching occurred within
22 - 36 hours after fertilization at water temperature of 27 - 29 ° C. The percentage of hatching rate
varied from 55 - 80%. The overall breeding performance of
C. striatus was found to be satisfactory for upscaling of murrel seed production in stakeholders farms.
Induced ovulation and spawning of a striped snakehead murrel, Channa striatus...researchanimalsciences
Induced breeding of the striped snakehead Murrel, Channa striatus (Bloch, 1793) was attempted during October to December 2009 (North-east monsoon). The breeding attempt was made using natural hormone Human Chorionic Gonadotropin (HCG). Two trials using fibre tanks of different capacity in triplicates were made to observe the effects of different doses of HCG on induced spawning of C. striatus. The fishes which received a dosage of 6000 IU/kg body weight gave satisfactory results. The ovulation was recorded after 19-29 h of the injection. The fertilization rate was observed as 40-80%. Hatching occurred within 22-36 hours after fertilization at water temperature of 27-29°C. The percentage of hatching rate varied from 55-80%. The overall breeding performance of C. striatus was found to be satisfactory for upscaling of murrel seed production in stakeholders farms.
Article Citation:
Bilal Ahmad Paray, Haniffa MA and Manikandaraja D.
Induced ovulation and spawning of a striped snakehead murrel,
Channa striatus (Bloch) under captive conditions.
Journal of Research in Animal Sciences (2012) 1(1): 033-039.
Full Text:
http://janimalsciences.com/documents/AS0010.pdf
Evaluation of the Biochemical Composition of Four Marine Algae and Its Nutrit...IOSR Journals
Microalgae are utilized in aquaculture as a live feed for the crustaceans, ablone, zooplanktons, etc. The present study was aimed to examine the nutritional status of Artemia sp. nauplii enriched with four different algal sources namely Chaetoceros calcitrans, Skeletonema coastaum, Duniella salina & D. bardawil and also the amount of beta-carotene assimilated when enriched with the two green algae. Artemia sp. nauplii enriched with D. salina showed high amounts of protein and carbohydrate, whereas Artemia sp. fed with Chaetoceros calcitrans showed high amounts of lipid. The protein profile of Artemia sp. enriched with different algal sources did not show prominent differences in the polypeptide bands. However, high amount of beta-carotene was assimilated in Artemia sp. nauplii when enriched with D. salina. Hence this study showed that the microalgae D. salina can be used as a potential feed to improve the nutritional status of Artemia sp. nauplii.
The culture of maintenance ornamental fish among Iranian people is developing every day. One of the most important factors in selection aquarium fish is behavior of feeding. The feeding behavior of Guppy is poorly documented. In this experiment we study feeding behavior in P. reticulata by six treatments. Six aquariums with the same dimension were used and two points A & B with the maximum distance from each other were selected in each aquarium. In aquarium No.1 hand move with feeding in point A, in aquarium No.2 hand move without feeding in point A, in aquarium No.3 hand moves in point A and feeding in point B, in aquarium No.4 feeding without hand move in point B, in aquarium No.5 in semi dark conditions hand move with feeding in point A and finally in aquarium No.6 in darkness conditions hand move with feeding in point A were done. In aquarium No.1, 94% of fish moved to point A and in aquarium No.2 it was about 92%. In aquarium No.3, 95.5% of fish moved to point A and in Aquarium No.4, 74.5% of fish moved to point B. In aquarium No 5 and 6, 96% and 99.5% of fish moved and didn’t move to point A, respectively. Our results showed that this species is a visual feeder and a good aquarium fish for their feeding behavior.
Article Citation:
Rajaei M, Nematollahi MA, Bahmaninezhad A and Lotfizadeh A.
Behavior of Feeding in Guppy: Poecilia reticulata.
Journal of Research in Animal Sciences (2012) 1(1): 001-006.
Full Text:
http://janimalsciences.com/documents/AS0004.pdf
1) The study examined the feeding behavior of guppies (Poecilia reticulata) under different conditions to determine if they are visual feeders.
2) When hand movement was accompanied by feeding in light and semi-dark conditions, over 90% of guppies moved towards the feeding location, but did not in total darkness, indicating they rely on vision to locate food.
3) Guppies also primarily moved towards a hand movement alone rather than a feeding location alone, further suggesting they are attracted most to visual cues when foraging.
4) The results demonstrate that guppies are visual feeders and their feeding behavior makes them a suitable ornamental aquarium fish that can entertain
Ecobiology of the Common Pierrot Castalius rosimon (Fabricius) (Lepidoptera: ...Dr Palem Harinath Reddy
In the environs of Lankamalai region (14°45' - 14°72' N and 79°07' - 78°80' E), the common pierrot
Castalius rosimon (Fabricius) lays eggs singly on Zizyphus jujuba. The butterfly available thought the year
with high frequency during September to November (post monsoon season). Enumeration of eggs, larvae and
pupae on the host plants in the field and flight observation of adults on wings attest this seasonality. The life
cycle from egg to adult emergence was relatively short spanning over 21-25 days. Success development of
adults, larvae and pupae was 90-100 % during the said period. Short life cycle and high success development
of life stages suggest the production of 12-13 broods in the year. The larvae pass through four instars and the
nutritional indices across the instars mostly the ground flora with sugar concentrations ranging between
28-52% either with sucrose of glucose dominance. Nutritional indices Consumption index (CI) and Growth rate
(GR) increase as the larvae aged, while approximate digestibility (AD) decreases, efficiency of conversion of
digested food (ECD) and efficiency of conversion of ingested food (ECI) are inversely related as age increased.
The fecundity and egg size of the freshwater crab (Isolapotamon bauense Ng,19...AbdullaAlAsif1
The Island of Borneo harbors a high species richness of freshwater brachyurans, many of which are endemic in the region and their existence is threatened by anthropogenic activities. Our knowledge on the fundamental aspects which are required for species conservation assessment is currently limited. For instance, information on fecundity of most Bornean freshwater crabs is almost non-existent despite this being an important predictor of vulnerability to extinction. This paper describes the fecundity and egg size of the giant freshwater crab (Isolapotamon bauense Ng, 1987) from Kuching Division in Sarawak, Borneo. The fecundity of the crab is between 26 and 81 eggs, with the egg diameter ranging between 3.7-4.2 mm. The macrolecithal eggs are attached to the pleopods of the female abdominal brood pouch; they are bright orange and are comprised of two layers of membrane, with a thicker outer layer and a thinner inner layer, encapsulating the large embryonic yolk sac.
This study examined the effects of different dietary levels of betaine on growth performance, food efficiency, and survival rate of pike perch fingerlings over 6 weeks. Fingerlings were fed one of four diets: live food, biomar feed without betaine, biomar with 1% betaine, or biomar with 2% betaine. The results showed that fish fed 2% betaine biomar had significantly higher weight gain, specific growth rate, food efficiency, and lower food conversion ratio compared to other treatments. However, this treatment also had the highest cannibalism. The treatment with biomar only without betaine resulted in the highest survival rate of 34.5%. In conclusion, betaine improved growth but
This document describes an experiment on the induced breeding of Pangasianodon hypophthalmus (striped catfish) under hatchery conditions in Tamil Nadu, India. Researchers used synthetic hormones to induce spawning in mature brood fish and observed fertilization rates of 60-80%. They found the fertilized eggs increased slightly in diameter after fertilization and developed through early embryonic stages until the late C-cell stage in the hatchery. The timing and characteristics of different embryonic development stages are presented. The goal was to develop hatchery techniques for mass production of this species for aquaculture.
The induced breeding of common carps (Cyprinus carpio) in BangladeshAbdullaAlAsif1
The study was conducted to know the induced breeding technique of common carp verities. Scale carp (C. carpio var. communis), mirror carp (C. carpio var. specularis) and leather carp (C. carpio var. nudus) are chosen for the experiment at Ma-Fatema Fish Hatchery in Jessore from January to March, 2016. For induced breeding practice of common carps generally 1st dose of PG hormone only injected to the female brood fishes only. After 6 hours of the 1st dose, female brood fishes were injected with the 2nd dose of hormone at 4 mg PG/kg body weight and male brood fishes were injected at 2 mg PG /kg body weight for scale carp and mirror carp; 4 mg PG/kg body weight for leather carp. After 6-7 hours of injection of 2nd dose brood fishes became ready to spawn. The fertilized eggs were hatched after 42-48 hours. The mean ovulation rates were 90.01±2.55, 85.75±4.3 and 78.98±5.85 for scale carp, mirror carp and leather carp, respectively. The mean fertilization rates were 83.06±3.04, 81.54±3.61 and 79.88±5.35 for scale carp, mirror carp and leather carp, respectively. The mean hatching rates were 77.6±3.93, 76.16±2.91 and 74.59±4.65 for scale carp, mirror carp and leather carp, respectively. The mean survival rates were 73.44±4.94, 71.92±1.94 and 69.58±3.79 for scale carp, mirror carp and leather carp, respectively. This is first research work on comparative study of common carps induced breeding in Bangladesh.
Danio dangila is an indigenous ornamental fish species found in India. The study examined the broodstock management, captive breeding, and developmental stages of D. dangila. Key findings include:
1) Over 100 pairs of D. dangila were collected from rivers in Assam and bred in captivity. Optimal water parameters and feeding routines were established for broodstock management.
2) Breeding was induced using ovaprim hormone injections, resulting in the spawning of 400-450 eggs per pair. Developmental stages from fertilization to hatching were observed and documented.
3) Larval rearing techniques were established, with hatching occurring 34-36 hours after fertilization and
Evaluation of house fly (Musca domestica) maggot meal and termite (Macroterme...Premier Publishers
A 56-day feeding trial was conducted to investigate the effects of the combination of maggot and termite meal with Coppens commercial feed on the growth performance, food utilization and survival of the African catfish (C. gariepinus). A total of 150 fingerlings were stocked in fifteen glass aquaria, 10 each in triplicate. Fish in aquarium A1, A2 and A3 were fed maggot meal (100 %-MM), B1, B2 and B3 with termite meal (100 % - TM), C1, C2 and C3 with equal combination of maggot meal and Coppens feed (50:50), D1, D2, and D3 with equal combination of termite meal and Coppens feed (50:50) and E1, E2 and E3 with Coppens feed (100 %). Growth performance including length gain, weight gain, growth rate, specific growth rate and mean growth rate and food utilization indices including food consumed (g), food conversion ratio and food conversion ratio showed significant variation (P<0.05) in fish fed Coppens feed compared to other treatments. Physico-chemical parameters and ammonia (mg/l) were within the acceptable range for optimal growth of freshwater fishes. Although Coppens was the best result for growth and food utilization, the combination of maggot/termite meal with Coppens as supplementary feed will reduce the cost of fish production exposing farmers to a higher profit margin. In conclusion, feeding fish with only termite meal or maggot meal can lead to poor growth because these insect meals do not provide all the nutrients required for optimal growth in fish. However, maggot meal and termite meal should be used as only as a supplementary food in fish culture or as a replacement for highly priced fishmeal in fish feed formulation because they are rich in protein.
This study tested the palatability and growth effects of betaine feed on American eels (Anguilla rostrata) in aquaculture. Eels in tanks fed 0.2% betaine-supplemented feed showed significantly higher food conversion ratios and growth per gram of food consumed compared to eels fed regular feed. While betaine feed stimulated more feeding activity than regular feed, there was no significant difference compared to hormone-induced feed. Competition between larger and smaller eels in one tank may have skewed some results. Longer feeding trials are needed to fully understand the effects of betaine on eel growth and behavior.
Studies on the Phyllosoma Larva of the Indian Rock Lobster, Panulirus Homarus...ijtsrd
Attempts were made to develop a technique to rear the phyllosoma larvae of Panulirus homarus. The biological characters like fecundity, hatching percentage, larval morphological changes, feed inputs and moulting frequency till the fourth moult were studied. Morphometric and meristic characters of the larvae were also studied till the 42ndday. The larval output was directly proportional to the size of the gravid brood stock. Relationship between the duration of culture X and length of the larvae Y were shown by the relationships Y intercept = 0.5780 ± 0.1074 and X intercept = 0.7283 r2 = 0.8519 . There was significant p 0.0001 positive relationship between total length TL and carapace width CW of phyllosoma larvae. S. Lazarus | J. C. Nisha | R. Thangaraja "Studies on the Phyllosoma Larva of the Indian Rock Lobster, Panulirus Homarus Linnaeus, 1758" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-4 , June 2020, URL: https://www.ijtsrd.com/papers/ijtsrd31676.pdf Paper Url :https://www.ijtsrd.com/biological-science/molecular-biology/31676/studies-on-the-phyllosoma-larva-of-the-indian-rock-lobster-panulirus-homarus-linnaeus-1758/s-lazarus
Hematological indices of clarias griepinus (burchell, 1882) fingerlings fed d...Alexander Decker
This study investigated the effect of graded levels of calabash seed meal on the hematological parameters of Clarias gariepinus fingerlings. Five iso-nitrogenous diets containing 0%, 15%, 30%, 45%, and 60% calabash seed meal were fed to groups of C. gariepinus for 56 days. The results showed no clear trend in hematological indices among the treatment groups. However, fish fed the highest level (60%) had significantly lower packed cell volume, hemoglobin, red blood cells, and mean cell volume compared to the control. White blood cells and mean corpuscular hemoglobin concentration were significantly higher at the 60% inclusion level. The study concluded that C. gari
Raeesah Ameen, Gan Moodley, Deborah Robertson-Andersson. Presented at the ninth Scientific Symposium of the Western Indian Ocean Marine Science Association (WIOMSA) 2015.
Similar to QUALITATIVE AND QUANTITATIVE CHARACTERS OF THREE COMMON CARP (Cyprinus carpio L.) STRAINS IN INDONESIA (20)
This document provides information about the 3rd International Conference on Adaptive and Intelligent Agroindustry that was held from August 3-4, 2015 in Bogor, Indonesia. It includes welcoming messages, details about keynote speakers, the agenda, and abstracts of invited speakers. The conference aimed to provide a forum for researchers and professionals to exchange ideas and recent advances in innovative agroindustry. It covered topics related to agroindustrial systems, process engineering, environmental engineering, and information technology for adaptive agroindustry.
This document provides information about the 3rd International Conference on Adaptive and Intelligent Agroindustry that was held from August 3-4, 2015 in Bogor, Indonesia. It discusses the welcome message from the general chairs, welcoming address from the head of the Agroindustrial Technology Department at Bogor Agricultural University, list of committees and invited speakers, topics to be discussed, and the agenda for the conference. The conference aimed to provide a forum for researchers, engineers, and scholars to exchange information and strengthen collaboration in innovative agroindustry.
TEKNOLOGI SEPARASI BAHAN AKTIF TEMULA W AK MENGGUNAKAN BIOPOLIMER TERMODIFIKA...Repository Ipb
Prosiding ini mendeskripsikan pengembangan teknologi separasi bahan aktif temulawak menggunakan biopolimer termodifikasi dari serabut ela sagu. Serabut ela sagu dimodifikasi melalui kopolimerisasi cangkok dan taut silang untuk menghasilkan selulosa-g-poliakrilamida yang digunakan sebagai material separator. Xantorizol dapat dipisahkan dengan baik dari senyawa pengotor menggunakan material ini, yang dievaluasi melalui krom
PEMBUATAN ARANG DARI SAMPAH ORGANIK DENGAN CARA KARBONISASI MENGGUNAKAN REAKT...Repository Ipb
Artikel ini membahas tentang pembuatan arang dari sampah organik kota menggunakan metode karbonisasi dalam reaktor pirolisis pada suhu 350-510°C selama 5 jam. Parameter kualitas arang yang diukur meliputi rendemen, kadar air, abu, zat terbang, karbon, nilai kalor, dan daya jerap terhadap beberapa zat. Hasil karakterisasi menunjukkan bahwa karbonisasi pada suhu 505°C menghasilkan arang dengan kualitas
Ringkasan dokumen ini adalah:
1. Penelitian ini bertujuan untuk mengidentifikasi senyawa bioaktif antifeedant dalam asap cair hasil pirolisis sampah organik perkotaan.
2. Hasil pirolisis diuji aktivitasnya terhadap larva Spodoptera litura dan fraksi yang aktif diidentifikasi menggunakan GC-MS.
3. Identifikasi menunjukkan fraksi metanol mengandung 14 jenis senyawa antifeedant dengan y-butyrolacton se
THERMAL EFFECT ON APATITE CRYSTAL SYNTHESIZED FROM EGGSHELL’S CALCIUMRepository Ipb
This document summarizes a study on the thermal effect on apatite crystals synthesized from eggshell calcium. Apatite crystals were synthesized by precipitating calcium solution from calcined eggshells into diammonium hydrogen phosphate solution. The apatite crystals were characterized using XRD and SEM before and after being calcined at 800°C and 900°C. XRD analysis showed the uncalcined samples contained hydroxyapatite and a small amount of carbonated apatite. Calcination removed the carbonate content, leaving only hydroxyapatite. Crystallinity and grain size increased with higher calcination temperatures. SEM images also showed larger grain size with increasing temperature.
STUDI PRODUKSI PEKTIN ASETAT SEBAGAI BAHAN BAKU LEMBARAN BIOPLASTIKRepository Ipb
Penelitian ini bertujuan untuk menentukan waktu aktivasi dan asetilasi yang optimal untuk memperoleh pektin asetat yang tidak larut air, yang akan digunakan sebagai bahan baku lembaran bioplastik. Hasilnya menunjukkan bahwa waktu aktivasi 180 menit dan waktu asetilasi 120 menit menghasilkan materi yang paling hidrofobik dan tingkat substitusi asetil tertinggi. Analisis menunjukkan perbedaan antara pektin dan pektin aset
EKSTRAK SAPOGENIN AKAR KUNING SEBAGAI HEPATOPROTEKTOR PADA MENCIT YANG DIINDU...Repository Ipb
Prosiding Simposium Nasional Kimia Bahan Alam XX (2012) merangkum hasil-hasil penelitian terkini mengenai peranan kimia bahan alam dalam meningkatkan potensi dan saintifikasi tanaman obat Indonesia. Simposium ini diselenggarakan oleh Himpunan Kimia Bahan Alam Indonesia bekerja sama dengan Universitas Islam Negeri Syarif Hidayatullah Jakarta pada 9-10 Oktober 2012. Terdapat presentasi dari pembicara undangan dan peserta, serta diskusi unt
PENGARUH EKSTRAK BANGLE (Zingiber cassumunar Roxb.) TERHADAP AKTIVITAS ENZIM ...Repository Ipb
Dokumen tersebut merupakan prosiding Seminar Nasional Sains III dengan tema "Sains Sebagai Landasan Inovasi Teknologi dalam Pertanian dan Industri" yang diselenggarakan pada tanggal 13 November 2010 di Bogor. Prosiding ini berisi makalah-makalah hasil penelitian yang dipresentasikan dalam empat sesi paralel yaitu Biological Science, Biochemistry, Chemistry, dan Physics & Mathematical Science, serta sesi poster. Prosiding ini bermanfaat bagi pelaku dan institusi terkait untuk men
POTENSI MINYAK ATSIRI DAUN Cinnamomum multiflorum SEBAGAI INSEKTISIDA NAB A T...Repository Ipb
Prosiding ini membahas potensi minyak atsiri daun Cinnamomum multiflorum sebagai insektisida nabati terhadap hama ulat kubis Crocidolomia pavonana. Minyak atsiri daun C. multiflorum diperoleh dengan kadar rendemen 1,39% dan diuji aktivitasnya dengan metode celup daun. Hasil uji menunjukkan minyak atsiri C. multiflorum memiliki aktivitas insektisida tinggi terhadap C. pavonana den
HIGH PERFORMANCE LIQUID CHROMATOGRAPHY PROFilE OF TEMPUYUNG Sonchus arvensis ...Repository Ipb
This document summarizes research on the anticancer potential of tempuyung (Sonchus arvensis) extracts. Tempuyung samples were collected from different areas in Java and extracted using methanol and ethanol. Phytochemical tests found saponins, flavonoids, steroids, and tannins. Toxicity tests against Artemia salina shrimp found the 70% ethanol extract was more toxic than the methanol extract. High performance liquid chromatography (HPLC) profiled the most toxic extract from Solo. Gradient HPLC produced 3-7 peaks providing a better fingerprint than isocratic HPLC with 1-4 peaks. The research investigated anticancer potential and optimized HPLC profiling of bioactive tempuyung extracts
A Visual Guide to 1 Samuel | A Tale of Two HeartsSteve Thomason
These slides walk through the story of 1 Samuel. Samuel is the last judge of Israel. The people reject God and want a king. Saul is anointed as the first king, but he is not a good king. David, the shepherd boy is anointed and Saul is envious of him. David shows honor while Saul continues to self destruct.
Philippine Edukasyong Pantahanan at Pangkabuhayan (EPP) CurriculumMJDuyan
(𝐓𝐋𝐄 𝟏𝟎𝟎) (𝐋𝐞𝐬𝐬𝐨𝐧 𝟏)-𝐏𝐫𝐞𝐥𝐢𝐦𝐬
𝐃𝐢𝐬𝐜𝐮𝐬𝐬 𝐭𝐡𝐞 𝐄𝐏𝐏 𝐂𝐮𝐫𝐫𝐢𝐜𝐮𝐥𝐮𝐦 𝐢𝐧 𝐭𝐡𝐞 𝐏𝐡𝐢𝐥𝐢𝐩𝐩𝐢𝐧𝐞𝐬:
- Understand the goals and objectives of the Edukasyong Pantahanan at Pangkabuhayan (EPP) curriculum, recognizing its importance in fostering practical life skills and values among students. Students will also be able to identify the key components and subjects covered, such as agriculture, home economics, industrial arts, and information and communication technology.
𝐄𝐱𝐩𝐥𝐚𝐢𝐧 𝐭𝐡𝐞 𝐍𝐚𝐭𝐮𝐫𝐞 𝐚𝐧𝐝 𝐒𝐜𝐨𝐩𝐞 𝐨𝐟 𝐚𝐧 𝐄𝐧𝐭𝐫𝐞𝐩𝐫𝐞𝐧𝐞𝐮𝐫:
-Define entrepreneurship, distinguishing it from general business activities by emphasizing its focus on innovation, risk-taking, and value creation. Students will describe the characteristics and traits of successful entrepreneurs, including their roles and responsibilities, and discuss the broader economic and social impacts of entrepreneurial activities on both local and global scales.
Beyond Degrees - Empowering the Workforce in the Context of Skills-First.pptxEduSkills OECD
Iván Bornacelly, Policy Analyst at the OECD Centre for Skills, OECD, presents at the webinar 'Tackling job market gaps with a skills-first approach' on 12 June 2024
Beyond Degrees - Empowering the Workforce in the Context of Skills-First.pptx
QUALITATIVE AND QUANTITATIVE CHARACTERS OF THREE COMMON CARP (Cyprinus carpio L.) STRAINS IN INDONESIA
1. 129
QUALITATIVE AND QUANTITATIVE CHARACTERS OF THREE
COMMON CARP (Cyprinus carpio L.) STRAINS IN INDONESIA
(Sifat-sifat Kuantitatif dan Kualitatif Tiga Strain Ikan Mas (Cyprinus carpio L.) di Indonesia)
Harton Arfah1
and Dinartri Soelistyowati1
ABSTRACT
The second generation of gynogenetic diploid common carp of majalaya, sinyonya and mirror strains
have been produced in 1992. Some of them were sex-reversed by oral administration of 17 α-methyltestote-
ronne. The females and sex-reversed males were matured on early 1994 and mated to produce progenies of
pure strains. This research aimed to measure certain quantitative characters since the early stage of develop-
ment to the market size. Three different conditions of rearing (i.e. rice field, ponds and concrete tanks) were
applied during the nursery phase, while the earthen pond and running water system with intensive feeding
were used for the grow-out stage. The results showed that average fecundity of sinyonya carp was higher
than mirror and majalaya strains, but its performances of the early development (i.e. fertilization rate, hatch-
ing rate and survival rate at 14 days old) was lowest. At the nursery phase, the survival and growth rates of
majalaya carp was relatively better than the other two strains, but the mirror carp had highest feed efficiency
and lowest protein retention. During culture period, the growth rates of these three common carp strains were
relatively similar (1%), but sinyonya carp, among strains had the highest percentage of fillet (38.5%) with the
lowest total number of muscular bones (69), the highest level of protein content (77.5%) and the lowest level
of lipid content (16.6%) among the three strains.
Keywords: Cyprinus carpio L, gynogenesis, growth rate, product quality.
ABSTRAK
Generasi kedua dari 3 strain Cyprinus carpio L. hasil gynogenesis, yakni majalaya, sinyonya dan mir-
ror digunakan untuk memproduksi strain murni gynogenot. Penelitian ini bertujuan untuk mengukur sifat-si-
fat kuantitatif dan kualitatif perkembangan embrio hasil persilangan tetua gynogenesis (G2N). Dalam peneli-
tian ini, 3 kondisi pemeliharaan diberikan pada fase benih yaitu: pola sawah, kolam dan tangki, serta 2 sistem
berbeda pada fase pembesaran yakni: sistem kolam air tenang dan air mengalir, dimana pemberian pakan di-
lakukan secara intensif. Hasil penelitian menunjukkan bahwa rata-rata fekunditas sinyonya lebih tinggi di-
banding mirror dan majalaya, tetapi penampilan pada awal pertumbuhan yang meliputi fertilitas, daya tetas
dan kelangsungan hidup sampai umur 14 hari rendah. Pada fase benih, parameter kelangsungan hidup (SR)
dan laju pertumbuhan majalaya lebih baik dibanding kedua strain lainnya, tetapi efisiensi pakan lebih tinggi
pada mirror meskipun retensi proteinnya rendah. Pada periode pembesaran, laju pertumbuhan ketiga strain ti-
dak berbeda, tetapi sinyonya menunjukkan persentase daging paling tinggi (38.5%), jumlah tulang paling ren-
dah (69), kandungan protein tertinggi (77.5%), dan kadar lemak terendah (16.6%) diantara ketiga strain yang
diteliti.
Kata Kunci: Cyprinus carpio L, gynogenesis, laju pertumbuhan, kualitas produk.
INTRODUCTION
Common carp, Cyprinus carpio L., was in-
troduced into Indonesia from China in 19th
cen-
tury, from Europe between 1930 and 1937 (Schus-
ter, 1950), and from Taiwan and also Japan
about 1970. Uncontrolled crossing in aquacul-
ture operation has seriously resulted in the merg-
ing of those strains that were introduced.
A program of genetic improvement of In-
donesian common carp stocks was started in
1989. Studies conducted to describe the mor-
phological and chemical characteristics of those
strains, which were locally available were com-
pleted in 1990 (Sumantadinata and Taniguchi,
1990a, 1990b). In order to obtain highly homo-
zygous strains, the meiotic gynogenetic tech-
nique was applied (Sumantadinata et al., 1990).
The second generation of meiotic gynogenetic
diploid of some common carp strains were ob-
tained in 1992 and matured at the late of 1994.
Thereafter, the genetic improvement was fo-
1
Department of Aquaculture, Faculty of Fishery and Marine Sci-
ence. Bogor Agriculture University, Indonesia.
2. 130 Jurnal Ilmu-ilmu Perairan dan Perikanan Indonesia, Desember 2004, Jilid 11, Nomor 2: 129-133
cused on three strains namely mirror carp, ma-
jalaya carp and sinyonya carp. These strains
were easily differentiated morphologically (Su-
mantadinata, 1995).
Gynogenetic common carps were of all
female. The male ones were obtained from sex
reversion of those females by oral administra-
tion of 17 α-methyltestosterone (Nagy et al., 1981;
Satyanarayana Rao et al., 1988). The progenies
of sex-reversed male and normal female were
all females. The method of sex reversal by hor-
mone 17 α-methyltestosterone immersion was
developed during the project.
In present paper the characteristics of
highly homozygous common carp strains in In-
donesia are determined.
MATERIALS AND METHODS
The second generation of gynogenetic di-
ploid common carp strains (mirror carp, majala-
ya carp and sinyonya carp), both female and sex-
reversed male were cultivated in ponds and float--
ing net cages. The mature stocks were spawned
naturally in spawning tanks. Soon after spawn-
ing began, five males and one female of each
strain were transferred to the laboratory. The
eggs were stripped and fertilized artificially by
the sperm stripped from five sex-reversed males
of the same strain to obtain the progenies and to
measure certain characters, i.e., fecundity, per-
formances at the early development (fertiliza-
tion rate, hatching rate, survival rate), growth-
rate at the nursery phase experiments and also
for growing-out experiments and flesh quality
analysis.
Fecundity and Early development
Five to six mature females of each strain
of common carp were sampled for estimation of
fecundity using the gravimetric method. A total
of 120 eggs were measured each fish as fertil-
ized eggs after two hours immersed in water.
One thousand fertilized eggs for each carp
strain were incubated in 180 l aquarium at 24 -
26 °C, with 3 replicates. Then, the inseminated
eggs were observed for their fertilization rate,
hatching rate and survival rate until 14 days old
fry.
Nursery phase
To determine the growth-rate and sur-
vival rate of each common carp strain during
the nursery stage, the research were carried out
in 3 different conditions (i.e. rice fields, ponds
and concrete tanks) and replicated 3 times each.
The three strains were cultured together in each
condition for certain rearing period. At fry stage,
a 500 m2
rice field was stocked with 3 weeks
old fry of about 0.7 g average body weight at 3
fish/m2
, and reared for 3 weeks. While in ponds
(200 m2
), chicken manure at 0.5 g/m2
and agri-
culture lime (CaCO3) at 0.1 g/m2
were applied.
About 1 kg of rice bran was given daily as sup-
plemental feed after two weeks rearing period.
Furthermore, the fingerlings of 6 weeks old
(about 3-5 g/fish) were treated in the same con-
dition of ponds but the density was anose at 6
fish/m2
and reared for three months. Commer-
cial feed containing 27% protein was given at
the rate of 3-4% of fish biomass daily with 3
times feeding frequency. Besides, the experi-
ment was also conducted in 1000 l concrete tanks
with continuous flowing water at a rate of 1 l/
minute and aerated by one point air supply.
Each tank was stocked at density of 30 fish with
application of artificial feed containing 38%
protein at feeding rate of 5-7% of fish biomass
per day, 3-4 times feeding frequency and rear-
ing period during 2 months. Variable observed
in this last experiment consist of feed efficiency,
protein and lipid retention, either growth and sur-
vival rate.
Growth-out stage
Growth-out experiments were conducted
in stagnant earthen ponds and in running water
ponds, with replicated 3 replicated each. The
same ponds preparation was done as in nursery
stage. Three 200 m2
ponds of each were used to
test growth performance among the strains
during 4 months cultivation period. The experi-
mental fish of 115 g average individual weight
were stocked communally at a rate of 600 fish
per pond. The feeding rate was 3-4% of fish
biomass daily with commercial pellets (27%
protein), which were given three times a day.
Whereas in the running water pond experiment,
the capacity of each running water unit was 12
m3
at 1 m depth and the fish were stocked at
density of 3 kg/m3
(about 13-85 g individual
weight). At the end of the experiment, 10 speci-
3. Arfah, H. and D. Soelistyowati, Qualitative and Quantitative Characters of Three . . . . 131
mens each strains were used to measure the
weight and the length of the body components,
number of muscular bones, and proximate ana-
lysis of the fish meat.
RESULTS
Fecundity and early developments
The relative fecundity among Indonesian
common carp based on number of eggs per kg
body weight showed that sinyonya strain had
the highest (129), while mirror carps was slightly
higher than that of majalaya carp (121 vs 107).
Therefore, the level of these fecundity might be
related to its egg size, where the small egg size
of sinyonya carp (0.9 mm) showed the high fe-
cundity (Table 1). In the early development, the
fertilisation rate of majalaya carp was the high-
est among these three strains. However hatch-
ing and survival rates of 14 days old larvae of
mirror carp were the highest (90%; 92%), fol-
lowed by majalaya carp (85%; 71%) and sinyo-
nya carp (85%; 42%).
Table 1. The Fecundity Average and Perform-
ances at the Early Development of Com-
mon Carp Strains (Mirror Carp, Maja-
laya Carp, Sinyonya Carp).
Characters
Mirror
Carp
Majalaya
Carp
Sinyonya
Carp
Body weight, kg 2.6±0.4 3.7±0.2 3.2±0.6
Number of eggs/kg fish 121.2±3.7 106.8±3.5 128.9±4.1
Fresh egg diameter, mm 1.0±0.2 1.0±0.2 0.9±0.2
Fertilized egg diameter, mm 1.5±0.1 1.5±0.1 1.5±0.1
Fertilization rate, % 90.9±7.2 96.3±3.1 89.1±2.4
Hatching rate, % 90.4±3.9 85.4±3.5 84.9±2.8
Survival rate of 14 days old
larva, %
91.6±3.4 70.7±3.8 41.8±4.1
Nursery phase
The first nursery phase in rice field, ma-
jalaya carp showed better survival and growth
rates than the two other strains (Table 2). Whereas,
the different rearing facilities produced unsimi-
larity in daily growth rate. The growth rate in
ponds (5.8%) was lower than that in rice field
(8.6-9.8%). However, it seems that the pond
provided a better condition for majalaya strain
on the survival rate (52%) compared to the others
(46% for mirror carp and 49% for sinyonya
carp).
Table 2. Daily Growth Rate and Survival Rate
of 3 Weeks Old Fry of 3 Common Carp
Strains at the Nursery Stage During 3
Weeks Cultured Period in Rice Field
and Ponds.
Rice Field
(1500 fish/500m2
)
Ponds
(2000 fish/200m2
)Characters
Mi C Ma C Si C Mi C Ma C Si C
Daily growth rate, % 8.9 9.8 8.6 5.8 5.8 5.8
Survival rate, % 46.7 50.2 45.5 46.0 52.0 49.0
Mi C = Mirror Carp; Ma C = Majalaya Carp; Si C = Sinyonya Carp
In the second nursery phase, survival
rates of the three strains were relatively higher
than those in the first nursery phase especially
(Table 3). Common carp strains had better growth
rates and survival in concrete tank than in ponds.
The highest survival rate was attained by sinyo-
nya carp from concrete tank (95%), followed by
majalaya carp (90.8%), and mirror carp (89.3%).
On the contrary, the rearing condition in pond
at the second nursery phase expressed lowest
growth rate.
Table 3. Daily Growth Rate and Survival Rate
of 3 Common Carp Strains of Finger-
lings at the Nursery Stage During Cul-
ture Period in Ponds (3 Months) and Con-
crete Tank (2 Months).
Ponds
(1200 fish/200m2
)
Concrete Tanks
(30 fish/1000l)Characters
Mi C Ma C Si C Mi C Ma C Si C
Daily growth rate, % 1.9 1.9 1.9 5.6 3.7 3.9
Survival rate, % 55.0 62.0 60.0 89.3 90.8 95.0
Feed efficiency, % - - - 84.0 72.9 78.7
Protein retention, % - - - 75.8 85.6 84.3
Lipid retention, % - - - 18.3 18.0 16.2
Mi C = Mirror Carp; Ma C = Majalaya Carp; Si C = Sinyonya Carp
In terms of feed efficiency and protein
and lipid retention, the result showed that maja-
laya and sinyonya carp had better level (72.9%;
85.6%), but the lowest lipid retention was re-
corded in sinyonya carp (16.2%).
The performance of body components among
3 common carp strains after 4 months cultiva-
tion period at growth-out experiment in ponds
(600 fish/200 m2
) were different (Table 4). Per-
centage of fillet was largest in sinyonya carp
but the body weight was the lowest. While mir-
ror carp had the largest viscera and head with
gills portion as well as fillet remnant than those
of the other the two other strains. Besides, the
4. 132 Jurnal Ilmu-ilmu Perairan dan Perikanan Indonesia, Desember 2004, Jilid 11, Nomor 2: 129-133
number of muscular bone of each strains were
different. Mirror carp contained the largest
number of muscular bones among the strains
with relatively similar number of branch and
straight type. Sinyonya had the fewest number
of the bones. Also, the meat of sinyonya carp
has higher percentage protein content but lower
lipid content compared to those of other two
strains.
Table 4. The Performances of Body Components
(%) among 3 Common Carp Strains af-
ter 4 Months Cultivation Period at Grow-
Out Experiment in Ponds (600 fish/200
m2
).
Body components
Mirror
Carp
Majalaya
Carp
Sinyonya
Carp
Body weight, g 550.8 390.9 379.7
Total fin, % 2.2 2.2 2.0
Viscera, % 9.0 1.5 8.8
Head with gills, % 35.5 22.3 25.7
Skin, % 0.9 3.2 3.8
Fillet, % 36.8 36.1 38.5
Fillet remnant, % 22.4 21.5 23.1
Number of total muscular bones:
branch type of bones
straight type of bones
78
39
39
73
31
42
69
25
45
Table 5. Proximate Analysis of Fish Flesh Based
on Wet and Dry Weight of Common
Carp Strains.
Wet base Dry base
Parameters
Mi C Ma C Si C Mi C Ma C Si C
Water content, % 82.4 82.4 82.0 - - -
Ash, % 0.9 0.8 0.9 5.0 4.4 4.9
Protein, % 13.1 13.0 14.0 74.2 73.9 77.5
Lipid, % 3.6 3.7 3.0 20.4 20.9 16.6
Carbohydrate, % 0.1 0.1 0.2 0.4 0.8 1.0
Mi C = Mirror Carp; Ma C = Majalaya Carp; Si C = Sinyonya Carp
DISCUSSIONS
Comparison among three strains of the
third generation of gynogenetic diploid com-
mon carp showed that there was differentiation
on fecundity of the strain related with egg size.
Sinyonya carp has the highest fecundity with
the smallest egg diameter. The size of egg was
genetically specific to each strain. The condi-
tion of fish reared in ponds system and rice
field seemed to be similar in terms of the survi-
val rates of fry, but in rice field the fishes had
better daily growth rate than in ponds. Also, for
fingerling, ponds provided lowest daily growth
rate and survival rate than tank. Geri et al (1995)
reported that body component characteristic and
chemical composition of fish flesh were influ-
enced by age and size of fish, as well as by the
rearing environment and genotype characteris-
tic.
Percentage of fillet of Indonesian carp
strains were relatively similar to those of French’s
carp observed by Vallod (1993) which reached
35-40% of the total body weight. Number of
muscular bones of the three strains (69-78)
were relative fewer compared to French carp
(86) observed by Vallod (1993), to carp from
Holstein (76-84) and to the wild carp from river
and lake Elbe in Turkey (100-102) (Chlandler
in Moav et al., 1975). Lieder (in Moav et al.,
1975) said that the diversity of muscular bone
number was relatively small (95-104) and was
not suggested as a factor for selection. On the
contrary, Meske (1968) found that carp in Ger-
man has a large diversity on numbers of the
bones which varied about 70-135.
Protein content of the flesh of these three
strains (13.00-14.96%) was relatively lowcom-
pared to mirror carp from Italy (17.02%) ob-
served by Geri et al (1995). The difference of
protein content of these three strains to the
mirror carp from Italy might caused by different
age of the carps observed.
CONCLUSION
Daily growth rate in fingerling was lower
than fry, otherwise the survival rate better in
fingerling from tank than ponds. Rearing con-
dition in rice field was better for fry, but for
fingerling reared in tank seemed to be best con-
dition. Mirror carp had excellent fecundity and
survival rate on early development, but majala-
ya carp was better on feed efficiency and pro-
tein retention.
REFERENCES
Geri, G., P. Lupi, M. Parisi, D. Agnello, A. Martini and M.
P. Ponzetta. 1995. Morphological characteristics
and chemical composition of muscle in the mirror
carp (Cyprinus carpio var.speclaris) as influenced
by body weight. Aquaculture, 129: 323-327.
Meske, C. 1968. Breeding carp for reduced number of
intramuscular bones and growth of carp in aqua-
rium. Bamidgeh, 20: 105-119.
5. Arfah, H. and D. Soelistyowati, Qualitative and Quantitative Characters of Three . . . . 133
Moav, R., A. Finkel and G. Wolhfarth. 1975. Variability
of intramuscular bones, vertebrae ribs, dorsal fin
rays and skeletal disorders in common carp. Theor.
Appl. Genetic, 45: 33-43.
Nagy, A., M. Bercsennyi and V. Csanyi. 1981. Sex
reversal in carp (Cyprinus carpio) by oral adminis-
tration of methyltestoterone. Can J. Fish Aqua. Sci.,
38: 725-728.
Sathyanarayana, R. H. N., Sathyannarayana R. G. P., L. N.
Srikar and J. S. Udupa. 1988. Effect of feeding
gonadal hormones on flesh prozimate composition
and organoleptic characteristics of the common
carp Cyprinus carpio Linn. Indian J. Anim. Sci., 58:
889-893.
Schuster, W. H. 1950. Comments on the importation
and transportation of different species of fish into
Indonesia. Contr. Gen. Agr. Ats., 1:1-30.
Sumantadinata, K. and N. Taniguchi. 1990. Study on
morphological variation in Indonesian common
carp stocks. Nippon Suisan Gakkaishi, 56: 879-886.
Sumantadinata, K., N. Taniguchi, N. and Sugiarto, 1990.
Increase variance of quantitative characters in the
two types of gynogenetic diploid of Indonesian
common carp. Nippon Suisan Gakkaishi, 56: 1979-
1986.
Sumantadinata, K. 1995. Present state of the common
carp (Cyprinus carpio L.) stocks in Indonesia. Aqua-
culture, 129:205-209.
Vallod, D. 1993. The processing and marketing of carp
(Cyprinus carpio). Succesfull placation: fillet of
“carpe royale”. Workshop on aquaculture of fresh-
water species. P. Billiard (Eds). European Aquaculture
Society Species Publication, 20: Ghent, Belgium: 9-
11.