Artificial Insemination and its Importance in Marine Crustaceans: A Review by Chandan Haldar*, Shyam Kumar and Raju Ram in crimson publishers: Journal of Marine Biology
Artificial Insemination (AI) is a tool for genetic manipulation in the crustacean stock including shrimp and crabs. It is seen as one of the means for propagating shrimp culture to new areas by controlled reproduction. But there are few studies on the reproduction and embryology of marine crustaceans whereas other groups of freshwater crustaceans have received much attention, and their embryology is better documented. So for the proper development of the marine production it is now necessary to focus on the artificial insemination technique in marine species also. In the current review we have discussed on the different tool and techniques used in artificial insemination of marine crustaceans In future, more number of research and development works must be conducted to increase the production of marine crustaceans by controlled reproduction through artificial insemination.
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transgenic animals , its production and applicationMonishaKCReddy
Process of introducing a foreign or exogenous DNA into an animal genome is called as Transgenesis
Transgenesis is the process of introducing an exogenous gene called a transgene into a living organism so that the organism will exhibit a new property and transmit that property to its offspring.
Retroviruses used as vectors to transfer genetic material into the host cell
Retroviruses can be used for the transfer of foreign genes into animal genomes.
Embryonic stem cell-mediated gene transfer.
Involves prior insertion of the desired DNA sequence by homologous recombination into an in vitro culture of embryonic stem (ES) cells. Incorporated into an embryo at the blastocyst stage of development.
Title "In vitro production of embryos from high performance cows and the development of frozen-thawed embryos after transfer". This presentation was from reviewed journal that published on 2008.
description of transgenic animals and production with desired traits using different methods and their applications and their advantages and disadvantages
In vitro Fertilization- IVF is a form of assisted reproductive technology (ART).In this special medical techniques are used to help a woman become pregnant. IVF, coupled with embryo transfer, in humans is aimed to enable couples suffering from certain types of sterility to have children.
Babies developed from this approach are known as "test-tube babies."
Dr. Mark Allen - Present & Future: Bovine Genetic & Reproductive TechnologiesJohn Blue
Present & Future: Bovine Genetic & Reproductive Technologies - Dr. Mark Allan, Director Marketing and Genomics, Trans Ova Genetics, from the 2014 NIAA Annual Conference titled 'The Precautionary Principle: How Agriculture Will Thrive', March 31 - April 2, 2014, Omaha, NE, USA.
More presentations at http://www.trufflemedia.com/agmedia/conference/2014_niaa_how_animal_agriculture_will_thrive
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
transgenic animals , its production and applicationMonishaKCReddy
Process of introducing a foreign or exogenous DNA into an animal genome is called as Transgenesis
Transgenesis is the process of introducing an exogenous gene called a transgene into a living organism so that the organism will exhibit a new property and transmit that property to its offspring.
Retroviruses used as vectors to transfer genetic material into the host cell
Retroviruses can be used for the transfer of foreign genes into animal genomes.
Embryonic stem cell-mediated gene transfer.
Involves prior insertion of the desired DNA sequence by homologous recombination into an in vitro culture of embryonic stem (ES) cells. Incorporated into an embryo at the blastocyst stage of development.
Title "In vitro production of embryos from high performance cows and the development of frozen-thawed embryos after transfer". This presentation was from reviewed journal that published on 2008.
description of transgenic animals and production with desired traits using different methods and their applications and their advantages and disadvantages
In vitro Fertilization- IVF is a form of assisted reproductive technology (ART).In this special medical techniques are used to help a woman become pregnant. IVF, coupled with embryo transfer, in humans is aimed to enable couples suffering from certain types of sterility to have children.
Babies developed from this approach are known as "test-tube babies."
Dr. Mark Allen - Present & Future: Bovine Genetic & Reproductive TechnologiesJohn Blue
Present & Future: Bovine Genetic & Reproductive Technologies - Dr. Mark Allan, Director Marketing and Genomics, Trans Ova Genetics, from the 2014 NIAA Annual Conference titled 'The Precautionary Principle: How Agriculture Will Thrive', March 31 - April 2, 2014, Omaha, NE, USA.
More presentations at http://www.trufflemedia.com/agmedia/conference/2014_niaa_how_animal_agriculture_will_thrive
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
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
Elasmobranchii is a subclass of Chondrichthyes or cartilaginous fish, including the sharks and the rays, skates, and sawfish. Members of this subclass are characterised by having four to seven pairs of gill clefts opening individually to the exterior, rigid dorsal fins and small placoid scales on the skin. The teeth are in several series; the upper jaw is not fused to the cranium, and the lower jaw is articulated with the upper. The details of this jaw anatomy vary between species, and help distinguish the different elasmobranch clades. The pelvic fins in males are modified to create claspers for the transfer of sperm. There is no swim bladder; instead, these fish maintain buoyancy with large livers rich in oil.
placenta is established very early in development. In the placental Elasmohranchs, the Rays and Skates, the yolk-sac persists, the yolk being taken directly into the alimentary canal. In some cases an internal yolk-sac is also present. The blood vessels in the mesoblastic portion of the yolk-sac are also of use in absorbing the fiourishment contained. Observations on the Structure of Uterus & Placenta of Elasmobranchs 3 within it. External gill filaments present in the early stages of the ...
he second mode is that elasmobranchs give birth to live young. The picture is, however, somewhat more complicated than that because there are two methods of live birth. The first is aplacental viviparity (also referred to as ovoviviparity) and involves the pups being retained in the uterus, without a placental connection, until they are sufficiently developed to be able to fend for themselves.
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.
Mr. Rakesh Sharma. M, M.Sc., in Applied Microbiology, Research Assistant with seven years of experience in Central Inter- Disciplinary Research Facility (CIDRF), SBV - Puducherry has joined as Research Associate in Mahatma Gandhi Medical Preclinical Research Centre (MGMPRC). A talk by him on “Zebrafish as an animal model for biomedical research” is scheduled on 19th November, 2022 (Saturday) at 2.30 pm in A1 conference hall, 1st floor Hospital block, MGMCRI.”
On the Relationship between Digestive Gases and Buoyancy in Sharks by Erich K Ritter in crimson publishers: Journal of Oceanography
Digestive gases, which naturally occur inside marine animals, affect their buoyancy. Following Boyle’s law, any change in hydrodynamic pressure leads to a change in the volume of such gases. Therefore during an ascent from deep to shallow waters, decompressing gases can lead to a positive effect on buoyancy. It may be necessary to release these gases into the surrounding water for an animal to control its depth effectively. Here, two videos are presented on how sharks can get rid of excessive digestive gases and it is discussed how these observations fit with the general understanding of digestive gas production and buoyancy control.
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In this study, nutritional profiles and growth performances of yellow mealworm, Tenebriomolitor larvae (TML) were assessed cultivated using common food wastes i.e. watermelon rinds, broilers’ eggshells and banana peels. Nutritional profiles and growth performance of TML were evaluated after 28-day feeding trial. Post-feeding proximate analysis showed significant increment of nutritional contents compared to the control groups; whereby TML demonstrated highest level of crude protein (43.38%±2.71), moisture (9.74%±0.23) and ash (4.40%±0.22) in the group treated with watermelon wastes. On the other hand, TML showed highest level of crude fibre (8.73%±0.05) when treated with broilers’ eggshells; and higher level of crude fat (40.13%±4.66) with banana wastes. Nitrogen-free extract (NFE) contents were also noticed higher in the group treated with banana wastes (4.46%±5.30). In terms of growth performance, TML administrated with watermelon wastes demonstrated superior in specific growth rate (2.50%±0.43) and feed conversion efficiency (0.10%±0.01). Interestingly, TML grown with banana wastes showed highest survival rate (97.5%) among all. In short, TML cultivation using watermelon and banana wastes showed a promising result on nutritional fortification and growth enhancement.
Microalgae as a Potential Source of Biofuels and its Current Advances_ Crimson publishers
Microalgae as a Potential Source of Biofuels and its Current Advances by Chandan Haldar*, Raju Ram, Shyam Kumar and Lakan Lal Menna in crimson publishers: Journal of Marine Biology
Sustainable production of renewable energy is passionately debated worldwide since it is progressively understood that first-generation biofuels are primarily produced from food crops. Mostly oilseeds do not contain enough amount of fat content to achieve targets for biofuel production. These concerns have increased the attention in developing second-generation biofuels produced from non-food feed stocks such as microalgae, which potentially offer high-fat content. The advantages of biofuel over fossil fuel are they are less toxic, biodegradable and lower emission greenhouse gases. This article reviews the current status of microalgae use for biodiesel production, including their cultivation, harvesting, and processing. The economic development of the world is hugely dependent on fossil fuel supplies which are constrained not only by partial availability but also generate high levels of pollution.
Because of the limited fossil fuel, concerted efforts have been started to search for alternative bio fuels like biodiesel, bio ethanol and since the diesel is being used massively in industrial commercial, fisheries, agriculture, and other sectors. So, the production and consumption of biodiesel from oil seeds crops have been getting renewed interest in recent years in India to overcome the drawbacks of oil from oilseed crops. Biodiesel produced from micro-algae has several benefits over the above resources due to higher algal biomass and oil yields and the need of non-arable land for its growth. Industrial and municipal wastewaters can be applied for farming of microalgal oil that can be used for the production of biodiesel to entirely displace petro diesel. The micro algal biomass has been reported to yield high oil contents and has the diesel production. Accordingly, a lot of R & D work has been initiated for the growth, harvesting, oil extraction and conversion to biodiesel.
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Antibacterial Effect of Endophytic Actinomycetes from Marine Algae against Multi Drug Resistant Gram Negative Bacteria by Manoharan N in Examines in Marine Biology & Oceanography
Metagenomics to Unlock the Biotechnological Potential of Marine Environments by Michele de Cássia Pereira e Silva in Examines in Marine C Biology & Oceanography
A Conceptual Approach towards Utilization of Technological Advancement for Coral Reef Conservation at India by Jebarathnam Prince Prakash Jebakumar in Examines in Marine Biology & Oceanography
Experimental Study on the Settling Velocity of
Coastal Mud in Quiescent Water: The Case of
Huangmaohai Estuary, South China Sea by Dong XU in Examines in Marine Biology and Oceanography: Open Access
Biocycling of Fractional Fatty Acid Components of Lipids in Mangrove-Benthic Systems, in Midnapore (East) Coast, India by Susanta Kumar Chakraborty in Examines in Marine Biology and Oceanography
A Positive Impact on Coastal and Marine Environment By Implementation of Biofloc System by Amarnath Dogiparti* in Examines in Marine Biology and Oceanography
Bacterial Community Profiling of the Arabian Sea Oxygen Minimum Zone Sediments using Cultivation Independent Approach by Baby Divya in Examines in Marine Biology and Oceanography
Life Cycle Analysis for Algae Biofuels- Using Local Situations to Factor in the Cost/Benefit of High-End Products Along with Nutrient Remediation and CO2 Sequestration by John Korstad in Examines in Marine Biology and Oceanography
Electromagnetic Phenomena Related to the 2011 Tohoku Earthquake and Tsunami: A Short Review by Stelios M Potirakis, Alexander Schekotov and Masashi Hayakawa in Examines in Marine Biology and Oceanography
Salas, V. (2024) "John of St. Thomas (Poinsot) on the Science of Sacred Theol...Studia Poinsotiana
I Introduction
II Subalternation and Theology
III Theology and Dogmatic Declarations
IV The Mixed Principles of Theology
V Virtual Revelation: The Unity of Theology
VI Theology as a Natural Science
VII Theology’s Certitude
VIII Conclusion
Notes
Bibliography
All the contents are fully attributable to the author, Doctor Victor Salas. Should you wish to get this text republished, get in touch with the author or the editorial committee of the Studia Poinsotiana. Insofar as possible, we will be happy to broker your contact.
Deep Behavioral Phenotyping in Systems Neuroscience for Functional Atlasing a...Ana Luísa Pinho
Functional Magnetic Resonance Imaging (fMRI) provides means to characterize brain activations in response to behavior. However, cognitive neuroscience has been limited to group-level effects referring to the performance of specific tasks. To obtain the functional profile of elementary cognitive mechanisms, the combination of brain responses to many tasks is required. Yet, to date, both structural atlases and parcellation-based activations do not fully account for cognitive function and still present several limitations. Further, they do not adapt overall to individual characteristics. In this talk, I will give an account of deep-behavioral phenotyping strategies, namely data-driven methods in large task-fMRI datasets, to optimize functional brain-data collection and improve inference of effects-of-interest related to mental processes. Key to this approach is the employment of fast multi-functional paradigms rich on features that can be well parametrized and, consequently, facilitate the creation of psycho-physiological constructs to be modelled with imaging data. Particular emphasis will be given to music stimuli when studying high-order cognitive mechanisms, due to their ecological nature and quality to enable complex behavior compounded by discrete entities. I will also discuss how deep-behavioral phenotyping and individualized models applied to neuroimaging data can better account for the subject-specific organization of domain-general cognitive systems in the human brain. Finally, the accumulation of functional brain signatures brings the possibility to clarify relationships among tasks and create a univocal link between brain systems and mental functions through: (1) the development of ontologies proposing an organization of cognitive processes; and (2) brain-network taxonomies describing functional specialization. To this end, tools to improve commensurability in cognitive science are necessary, such as public repositories, ontology-based platforms and automated meta-analysis tools. I will thus discuss some brain-atlasing resources currently under development, and their applicability in cognitive as well as clinical neuroscience.
Nutraceutical market, scope and growth: Herbal drug technologyLokesh Patil
As consumer awareness of health and wellness rises, the nutraceutical market—which includes goods like functional meals, drinks, and dietary supplements that provide health advantages beyond basic nutrition—is growing significantly. As healthcare expenses rise, the population ages, and people want natural and preventative health solutions more and more, this industry is increasing quickly. Further driving market expansion are product formulation innovations and the use of cutting-edge technology for customized nutrition. With its worldwide reach, the nutraceutical industry is expected to keep growing and provide significant chances for research and investment in a number of categories, including vitamins, minerals, probiotics, and herbal supplements.
Professional air quality monitoring systems provide immediate, on-site data for analysis, compliance, and decision-making.
Monitor common gases, weather parameters, particulates.
What is greenhouse gasses and how many gasses are there to affect the Earth.moosaasad1975
What are greenhouse gasses how they affect the earth and its environment what is the future of the environment and earth how the weather and the climate effects.
Earliest Galaxies in the JADES Origins Field: Luminosity Function and Cosmic ...Sérgio Sacani
We characterize the earliest galaxy population in the JADES Origins Field (JOF), the deepest
imaging field observed with JWST. We make use of the ancillary Hubble optical images (5 filters
spanning 0.4−0.9µm) and novel JWST images with 14 filters spanning 0.8−5µm, including 7 mediumband filters, and reaching total exposure times of up to 46 hours per filter. We combine all our data
at > 2.3µm to construct an ultradeep image, reaching as deep as ≈ 31.4 AB mag in the stack and
30.3-31.0 AB mag (5σ, r = 0.1” circular aperture) in individual filters. We measure photometric
redshifts and use robust selection criteria to identify a sample of eight galaxy candidates at redshifts
z = 11.5 − 15. These objects show compact half-light radii of R1/2 ∼ 50 − 200pc, stellar masses of
M⋆ ∼ 107−108M⊙, and star-formation rates of SFR ∼ 0.1−1 M⊙ yr−1
. Our search finds no candidates
at 15 < z < 20, placing upper limits at these redshifts. We develop a forward modeling approach to
infer the properties of the evolving luminosity function without binning in redshift or luminosity that
marginalizes over the photometric redshift uncertainty of our candidate galaxies and incorporates the
impact of non-detections. We find a z = 12 luminosity function in good agreement with prior results,
and that the luminosity function normalization and UV luminosity density decline by a factor of ∼ 2.5
from z = 12 to z = 14. We discuss the possible implications of our results in the context of theoretical
models for evolution of the dark matter halo mass function.