Growth and production performance of tade mullet, Liza tade (Forsskal, 1775) at different stocking density in tide fed brackishwater pond rearing systems in West Bengal
By Subhra Bikash Bhattacharyya, Tapas Kumar Ghoshal, Jitendra Kumar Sundaray (Central Institute of Brackishwater Aquaculture, India)
Revitalizing the Ganges Coastal Zone Conference
21-23 October 2014, Dhaka, Bangladesh
http://waterandfood.org/ganges-conference/
http://www.extension.org/67703 In high yielding row crop intensive regions the role of swine manure as a crop nutrient source has increased in value, replacing the purchase of increasingly expensive commercial fertilizer by providing the nutrient needs of crops. Nutrients from manure are recycled to fertilize high yielding crops in an environmentally friendly, synergistic system.
Access to the value of the nutrients in manure has been a primary motivation for constructing swine facilities. However, as the energy cost of swine diets has increased, feeding programs have been dramatically changed. Changes in ingredients composition has changed from manipulations of dietary formulations. These changes can alter the nutrient composition of the resulting manure and thus the nutrient value of the manure as fertilizer. What does not occur is the consideration that owners/users of the manure composition and if changes need to be made in application rates for optimizing fertilizer rates for crops.
Growth Response of Heterotis Niloticus (Cuvier 1829) Fingerlings to Artificia...AI Publications
The study amied at determining the growth response and survival rate of Heterotis niloticus on artificial diet and chicken manure reared in earthen pond system. The experiment was designed as 2 treatment x 12 weeks factorial replicated twice. The fingerlings of H. niloticus were collected from the wild, acclimatised and stocked in an earthen ponds of (200m2) at 50 fish/m2/pond and fed with compounded diet of 30% crude protein and chicken manure for twelve weeks. The body weights were determined bi-weekly using electronic weighing balance. Final mean weight of 32.89±9.10g fish fed with chicken manure and 22.19±2.8g were obtained. Fish fed with chicken manure had a better growth rate. The water quality variables were similar except Dissolved oxygen and Turbididty that shows a sharp difference in culture ponds. The results of the present experiment showed that Heterotis niloticus fingerlings have a different growth performance, under earthen pond system with fish fed with chicken manure having better performance. Therefore, the culture of H. niloticus with chicken manure is recommended for better growth.
http://www.extension.org/67703 In high yielding row crop intensive regions the role of swine manure as a crop nutrient source has increased in value, replacing the purchase of increasingly expensive commercial fertilizer by providing the nutrient needs of crops. Nutrients from manure are recycled to fertilize high yielding crops in an environmentally friendly, synergistic system.
Access to the value of the nutrients in manure has been a primary motivation for constructing swine facilities. However, as the energy cost of swine diets has increased, feeding programs have been dramatically changed. Changes in ingredients composition has changed from manipulations of dietary formulations. These changes can alter the nutrient composition of the resulting manure and thus the nutrient value of the manure as fertilizer. What does not occur is the consideration that owners/users of the manure composition and if changes need to be made in application rates for optimizing fertilizer rates for crops.
Growth Response of Heterotis Niloticus (Cuvier 1829) Fingerlings to Artificia...AI Publications
The study amied at determining the growth response and survival rate of Heterotis niloticus on artificial diet and chicken manure reared in earthen pond system. The experiment was designed as 2 treatment x 12 weeks factorial replicated twice. The fingerlings of H. niloticus were collected from the wild, acclimatised and stocked in an earthen ponds of (200m2) at 50 fish/m2/pond and fed with compounded diet of 30% crude protein and chicken manure for twelve weeks. The body weights were determined bi-weekly using electronic weighing balance. Final mean weight of 32.89±9.10g fish fed with chicken manure and 22.19±2.8g were obtained. Fish fed with chicken manure had a better growth rate. The water quality variables were similar except Dissolved oxygen and Turbididty that shows a sharp difference in culture ponds. The results of the present experiment showed that Heterotis niloticus fingerlings have a different growth performance, under earthen pond system with fish fed with chicken manure having better performance. Therefore, the culture of H. niloticus with chicken manure is recommended for better growth.
Dr. Nick Gabler - The impact of PRRSV on feed efficiency, digestibility and t...John Blue
The impact of PRRSV on feed efficiency, digestibility and tissue accretion in grow-finisher pigs - Dr. Nick Gabler, Department of Animal Science, Iowa State University, from the 2013 Allen D. Leman Swine Conference, September 14-17, 2013, St. Paul, Minnesota, USA.
More presentations at http://www.swinecast.com/2013-leman-swine-conference-material
Effect of energy source and level and sex on growth, performance and carcass ...Faisal A. Alshamiry
In the past, increasing the slaughter weights of lambs was a goal of the American Sheep Industry (Harrison and Crouse, 1978).
Recently the American Sheep Industry has had the difficulty of balancing the heavy slaughter weights of lambs with a desirable amount of fat thickness (American Lamb Industry Roadmap, 2013).
The American lamb industry would also like to improve the productivity of American lamb by improving the efficiency of gain when compared with the cost of production.
Dr. Joel DeRouchey - Feed Price Update and Daily Feed Efficiency Drivers John Blue
Feed Price Update and Daily Feed Efficiency Drivers - Dr. Joel DeRouchey, Kansas State University, from the 2013 World Pork Expo, June 5 - 7, 2013, Des Moines, IA, USA.
More presentations at http://www.swinecast.com/2013-world-pork-expo
By Asad Sarwar Qureshi, Samina Yasmin, Nikar C. Holader, Timothy J. Krupnik
Revitalizing the Ganges Coastal Zone Conference
21-23 October 2014, Dhaka, Bangladesh
http://waterandfood.org/ganges-conference/
By Parvesh Kr Chandna, Andy Nelson, Zahirul Khan, Moqbul Hossain, Sohel Rana, Fazlur Rashid, M. Mondal, T.P. Tuong
Revitalizing the Ganges Coastal Zone Conference
21-23 October 2014, Dhaka, Bangladesh
http://waterandfood.org/ganges-conference/
By Sanjida P. Ritu, M.K. Mondal, T.P. Tuong, S.U. Talukdar, E. Humphreys
Revitalizing the Ganges Coastal Zone Conference
21-23 October 2014, Dhaka, Bangladesh
http://waterandfood.org/ganges-conference/
By Parvesh Kumar Chandna, Andy Nelson, Sohel Rana, Marie-Charlotte Buisson, Sam Mohanty, Nazneed Sultana, Deepak Sethi, T.P. Tuong
Revitalizing the Ganges Coastal Zone Conference
21-23 October 2014, Dhaka, Bangladesh
http://waterandfood.org/ganges-conference/
West Bengal has several blessings for aquaculture development- P.E.Vijay Anand emmi28
West Bengal has several advantages for the development of aquaculture in India. But the pace at which it is utilizing these resources seems to be slow. I have tried to capture these advantages and link them to possible aquaculture development in future. The presentation compares this province to Andhra province which is also a very progressive region as far as commercial aquaculture is concerned. Read the "Bengal Blessings" and feel free to ask me for any suggestions. At USSEC - the aquaculture team, self and Umakanth are working to develop other markets for popularizing the feed based system in India. In view of this- the West Bengal region has been examined very critically for aquaculture development.
FRESHWATER FARMING OF BRACKISHWATER SHRIMP, PENAEUS MONODON (FABRICIUS) WIT...American Research Thoughts
Abstract: Brackish water shrimp (Penaeus monodon) farming expanded rapidly after the technical
viability of this culture system was established and farmers discovered that the high profits derived
from shrimp production could easily offset increased costs associated with this culture. These factors
facilitate the spread of brackish water shrimp farming into freshwater agricultural areas of Purba
Medinipur district of West Bengal that never experience salt water intrusion. The emergence of
brackish water shrimp farming within paddy growing regions of Purba Medinipur district has raised
concerns regarding potential environmental impacts and the suitability of conducting this activity
within highly productive freshwater agricultural areas. In the present study an attempt had been
made to farm the black tiger shrimp, Penaeus monodon in almost freshwater condition with
innovative technologies in 04 earthen tanks each with 0.4 ha water spread area under Contai -III Dev.
Block in Purba Medinipur district in the year 2011 (April to August). The PCR tested P. monodon
seeds (PL15) were stocked in all freshwater earthen tanks after proper acclimatization @
50,000nos/tank. The salinity of the tanks was recorded between 0.0063 ppt to 0.04 ppt. The shrimps
were fed with branded feed and the feeding schedule was based on check-tray method as well as a feed
chart given by the concerned manufacturer.
Dr. Nick Gabler - The impact of PRRSV on feed efficiency, digestibility and t...John Blue
The impact of PRRSV on feed efficiency, digestibility and tissue accretion in grow-finisher pigs - Dr. Nick Gabler, Department of Animal Science, Iowa State University, from the 2013 Allen D. Leman Swine Conference, September 14-17, 2013, St. Paul, Minnesota, USA.
More presentations at http://www.swinecast.com/2013-leman-swine-conference-material
Effect of energy source and level and sex on growth, performance and carcass ...Faisal A. Alshamiry
In the past, increasing the slaughter weights of lambs was a goal of the American Sheep Industry (Harrison and Crouse, 1978).
Recently the American Sheep Industry has had the difficulty of balancing the heavy slaughter weights of lambs with a desirable amount of fat thickness (American Lamb Industry Roadmap, 2013).
The American lamb industry would also like to improve the productivity of American lamb by improving the efficiency of gain when compared with the cost of production.
Dr. Joel DeRouchey - Feed Price Update and Daily Feed Efficiency Drivers John Blue
Feed Price Update and Daily Feed Efficiency Drivers - Dr. Joel DeRouchey, Kansas State University, from the 2013 World Pork Expo, June 5 - 7, 2013, Des Moines, IA, USA.
More presentations at http://www.swinecast.com/2013-world-pork-expo
By Asad Sarwar Qureshi, Samina Yasmin, Nikar C. Holader, Timothy J. Krupnik
Revitalizing the Ganges Coastal Zone Conference
21-23 October 2014, Dhaka, Bangladesh
http://waterandfood.org/ganges-conference/
By Parvesh Kr Chandna, Andy Nelson, Zahirul Khan, Moqbul Hossain, Sohel Rana, Fazlur Rashid, M. Mondal, T.P. Tuong
Revitalizing the Ganges Coastal Zone Conference
21-23 October 2014, Dhaka, Bangladesh
http://waterandfood.org/ganges-conference/
By Sanjida P. Ritu, M.K. Mondal, T.P. Tuong, S.U. Talukdar, E. Humphreys
Revitalizing the Ganges Coastal Zone Conference
21-23 October 2014, Dhaka, Bangladesh
http://waterandfood.org/ganges-conference/
By Parvesh Kumar Chandna, Andy Nelson, Sohel Rana, Marie-Charlotte Buisson, Sam Mohanty, Nazneed Sultana, Deepak Sethi, T.P. Tuong
Revitalizing the Ganges Coastal Zone Conference
21-23 October 2014, Dhaka, Bangladesh
http://waterandfood.org/ganges-conference/
West Bengal has several blessings for aquaculture development- P.E.Vijay Anand emmi28
West Bengal has several advantages for the development of aquaculture in India. But the pace at which it is utilizing these resources seems to be slow. I have tried to capture these advantages and link them to possible aquaculture development in future. The presentation compares this province to Andhra province which is also a very progressive region as far as commercial aquaculture is concerned. Read the "Bengal Blessings" and feel free to ask me for any suggestions. At USSEC - the aquaculture team, self and Umakanth are working to develop other markets for popularizing the feed based system in India. In view of this- the West Bengal region has been examined very critically for aquaculture development.
FRESHWATER FARMING OF BRACKISHWATER SHRIMP, PENAEUS MONODON (FABRICIUS) WIT...American Research Thoughts
Abstract: Brackish water shrimp (Penaeus monodon) farming expanded rapidly after the technical
viability of this culture system was established and farmers discovered that the high profits derived
from shrimp production could easily offset increased costs associated with this culture. These factors
facilitate the spread of brackish water shrimp farming into freshwater agricultural areas of Purba
Medinipur district of West Bengal that never experience salt water intrusion. The emergence of
brackish water shrimp farming within paddy growing regions of Purba Medinipur district has raised
concerns regarding potential environmental impacts and the suitability of conducting this activity
within highly productive freshwater agricultural areas. In the present study an attempt had been
made to farm the black tiger shrimp, Penaeus monodon in almost freshwater condition with
innovative technologies in 04 earthen tanks each with 0.4 ha water spread area under Contai -III Dev.
Block in Purba Medinipur district in the year 2011 (April to August). The PCR tested P. monodon
seeds (PL15) were stocked in all freshwater earthen tanks after proper acclimatization @
50,000nos/tank. The salinity of the tanks was recorded between 0.0063 ppt to 0.04 ppt. The shrimps
were fed with branded feed and the feeding schedule was based on check-tray method as well as a feed
chart given by the concerned manufacturer.
By M. Maniruzzaman, J.C. Bisawas, M.A.I. Khan, G.W. Sarker, S.S. Haque, J.K. Biswas, M.H. Sarker, M.A. Rashid, N.U. Sekhar, A. Nemes, S. Xenarios, J. Deelstra
Revitalizing the Ganges Coastal Zone Conference
21-23 October 2014, Dhaka, Bangladesh
http://waterandfood.org/ganges-conference/
By J. Bhattacharya, M.K. Mondal, E. Humphreys, M.H. Rashid, P.L.C. Paul, S.P. Ritu
Revitalizing the Ganges Coastal Zone Conference
21-23 October 2014, Dhaka, Bangladesh
http://waterandfood.org/ganges-conference/
Similar to Growth and production performance of tade mullet, Liza tade (Forsskal, 1775) at different stocking density in tide fed brackishwater pond rearing systems in West Bengal
Feeding rate requirements for Schilbe intermedius (Rüppel, 1832) fingerlings ...Innspub Net
The control of the breeding of Schilbe intermedius in captivity, passes by the determination of its nutritional requirements. The present study aims therefore to determine the optimal feed ration of the fingerlings of S. intermedius. The experiment was carried out in circular basins during 28 days. After their capture in natural environment, their transfer in controlled area and their acclimatization to the artificial food used (coppens: protein 45%.), the fingerlings used (average weight: 3.12±0.83g) were subjected to four feed rations (2, 5, 8 and
11% of the biomass) tested in triplicate each one. Thus, the lowest rate of survival (64.00±1.15%) was recorded for
the fingerlings’lot subjected to the ration of 8% where the pH is more acid (5.29).The final average weight (4.63±0.00g), the specific growth rate (1.19±0.08%/day) and the food effectiveness (0.53±0.00) obtained with the ration of 11% were the highest. These values are significantly different (P< 0.05) than those obtained with the ration of 2%.The best consumption index was registered with the ration of 2%. According to the model of Brett, the maximum and optimal daily rations of S. intermedius fingerlings were estimated to 4.6 % and 8.5 % respectively. Get the full articles at: http://www.innspub.net/volume-7-number-6-december-2015-ijaar/
Effects of stocking density on the growth rate of gold fish fry reared in hapaAbdullaAlAsif1
p>The present study was conducted to investigate effects of stocking density on growth performances of gold fish ( Carassius auratus ) in hapas. Experiment was conducted for a month with three treatments where three stocking densities were T<sub>1</sub> (10 fry/hapa), T<sub>2</sub> (15 fry/hapa) andT<sub>3</sub> (20 fry/hapa) each having three replications which were selected randomly. In the present experiment hapa (3ft × 2ft × 2ft) with 1 mm mesh net was used. Gold fish fry having a mean body weight of 0.007 g were used in all treatments. Fishes were fed at the rate of 10% of their body weight containing 34.11% protein. Water quality parameters were monitored at 10 days interval and the ranges were –temperature 24.75 to 27.75 <sup>o</sup>C, dissolved oxygen 3.68 to 4.09 mg/L, pH 7.3 to 8.16, ammonia 0.3 to 1 mg/L, nitrite 0.01 to 0.03 mg/L, phosphate 0.6 to 1 mg/L and alkalinity 119 to 187 mg/L. At the growth performances were evaluated by comparing mean final body weight, specific growth rate and food conversion ratio. The present study showed that the gold fish fry in T<sub>1</sub> resulted the best mean final weight gain (1.188 g) followed by T<sub>2</sub> (0.834 g) and T<sub>3</sub> (0.686 g). The SGR ranged between 6.64 and 7.43% per day and FCR ranged between 3.56 and 4.12 with T<sub>1</sub> showing the lowest FCR. The survival rate (%) ranged between 76.67% to 85.67%. From the present experiment it was found that individual fish growth rate was decreased with the increase of stocking density.
Effect of Intensifying Stocking Densities and Proper Feed Management Techniqu...IJERA Editor
Clarias gariepinus was cultured in earthen ponds at three very high stocking densities- 27, 45, and 90 fingerlings/m2 in replicates and fed with both commercial (CF) and formulated feed (FF). After eight weeks, fish fed CF had the highest mean daily weight gain of 0.591±0.004g/day; 0.491±0.004g/day; 0.576±0.001g/day respectively for 27, 45 and 90 fingerlings/m2 with a corresponding MDWG of 0.576±0.001; 0.608±0.005 and 0.607±0.012g/day with FF. The weight and Condition Factor (g)(C.F.) for CF fed were 32.71g (0.93); 31.66g (0.68) and 32.0g (0.85) respectively for 27, 45 and 90 fingerlings/m2 , while FF correspondingly yielded 34.43g (0.80); 35.33g (0.47) and 35.33g (0.90). The survival rate was highest with CF at 27 fingerlings/m2 and lowest with FF at 90 fingerlings/m2 . Consequently, a stocking density of 45 fingerlings/m2 is recommended for earthen pond culture with either CF or FF. Feeding specificity, timeliness in feeding cum high quality feed enhanced fish growth and development.
Comparison of growth feed conversion and body composition of juvenile hybrid...ABDUL MALIK
The objective of this study was to compare growth, feed consumption and body composition of
hybrid red tilapia (Oreochromis niloticus × O. mossambicus) and Nile tilapia (O. niloticus) reared in
concrete tanks for 60 days. The juvenile of Nile tilapia, T1 (mean weight 2.08±0.2 g) and hybrid red
tilapia, T2 (mean weight 2.07±0.16 g) were stocked in concrete tanks (15 × 6 × 3 ft). They were fed
with four isoenergetic (20.3 kJ g
) diets containing 35% protein at a daily ration of 5% body weight
with two replications. The highest weight gain was found in T2 (44.2±0.1g), while the lowest one
was recorded in T1 (34.3±0.2 g). Specific growth rate (SGR) and feed conversion ratio (FCR) were
-1
not significantly different among treatments (P<0.01).><0.01).><0.05).><0.05), though little variations were noted in the values of individual
fatty acids. Based on the biological and chemical data, it is suggested that hybrid red tilapia, T2 (O.
niloticus × O. mossambicus) has potential for aquaculture in Pakistan.
Valorization of the duckweed (Spirodela polyrhyza) in the feeding of mono sex...Innspub Net
In order to evaluate the effect of Spirodela polyrhiza using in diets of Oreochromis niloticus fingerlings, an experiment was conducted on the farm “Awara” in the village of Agongo in Sèmè – Kpodji during 70 days. The initial average weight of fry is about 1g. The stocking density was 13 fry / m². Three experimental diets made with local by-products were tested: T0 (0% S. polyrhiza Meal), T1 (5% S. polyrhiza Meal) and T2 (mixed feed composed of 70% T0 and 30% fresh S. polyrhiza). At the end of the experiment, the survival rate was 100% for all treatments. The best zootechnical parameters were obtained with T1 with a final average weight of 11.67 ± 2.52 g and a consumption index of 1.17 ± 0.30. The highest gross profit margin was also obtained with T1. The lowest economic profitability was obtained.
Effect of Stocking Density on the Resistance to Fasting, Growth and Survival ...Agriculture Journal IJOEAR
Abstract— After artificial reproduction of African catfish Heterobranchus bidorsalis, larvae of two days old and 2.18 ± 0.35 mg of mean weight were used to perform two experiments in order to assess the effect of stocking density on their fasting resistance, growth and survival. During the first experiment which lasted 11 days with four batches of larvae at densities of 1, 2, 3 and 4 individuals/ml, results showed that density did not significantly affect (p˂0,05) the resistance to fasting of larvae. However, first mortalities were observed at D5 for all the densities, the higher daily mortality was recorded at D10 and the last mortalities were obtained at D12.
Results of the second experiment revealed that the weight and growth performance of larvae decreased with the increasing of the density after 28 days of rearing. In contrast, the larval survival rate increased with the density. The values of survival rate were respectively 30.53 ± 4.32 and 55.30 ± 21.70 % for the densities 1 ind./l and 20 ind./l.
Comparative Study of Zootechnical Performances and Survival Rates in Rainbow ...IJEAB
Considering its economic and halieutic interest, the rainbow trout (Oncorhynchus mykiss, Walbaum, on 1792) is one of the species the most appreciated in the world, in particular for the sports fishing. To compare the effects of two food of different formulation, (the one premises(place) used by the center of salmon farming and the other one imported) on some biological parameters of the trout rainbow, an experimental study was realized between 1st Mars and June 15th, 2016 in the National Center of Hydrobiology and Fish farming of Azrou on 2000 fish fry stemming from the same prize of eggs and restarted randomly in 4 rectangular ponds fed with fresh water and fed four times by days during 107 days. The obtained results show good that the best performances of growth in length and in weight, the survival rate and feed efficiency are attributed to the imported food.
Effect of Soil Textural Property on Nutrient Profile of Clarias gariepinus (B...BRNSS Publication Hub
The effect of soil textural property on nutrient profile of Clarias gariepinus from earthen ponds was
investigated between March and August 2016. Three soil profile pits were dug side-by-side three existing
earthen ponds in three different geomorphological locations of Imo State at Umuagwo, Ulakwo, and
Uboma. Three homogenous soil horizons (0–20, 20–60, and 60–150 cm) were identified and evaluated
for soil moisture, soil textural class, and nutrient composition by standard methods (USDA, 1971). 10
adults of C. gariepinus of 580 ± 6.5 g average weight randomly selected from the associated earthen
ponds were chemically evaluated for carcass composition in accordance with AOAC (2005). Soil textural
class of fish pond was sandy at Umuagwo (sand: 79.8 ± 6.4%, silt: 11.7 ± 0.8%, and clay: 10.0 ± 0.7%),
sandy loam at Ulakwo (sand: 68.7 ± 7.0%, silt: 16.0 ± 1.5%, and clay: 15. 3 ± 1.3%), and clay loam at
Uboma (sand: 32.8 ± 3.0%, silt: 21.5 ± 2.8%, and clay: 50.0 ± 4.8%). Crude protein of fish carcass from
the clay pond (27.6 ± 2.0%) and crude fat (18.2 ± 0.8%) was significantly higher (P < 0.05) than in the
sandy pond (14.2 ± 0.8% and 2.3 ± 1.2%) and the sandy loam (18.1 ± 1.0% and 11.1 ± 0.2%) ponds,
respectively. Soil textural property was positively related to carcass quality of C. gariepinus in earthen
ponds.
Detritivorous marine polychaete worms are farmed commercially as live bait for sport angling and most recently as an ingredient in formulated aquaculture feeds.
Dr. Josh Flohr - Estimating the Impact of Floor Space Allowance on Late-Finis...John Blue
Estimating the Impact of Floor Space Allowance on Late-Finishing Pig Performance - Dr. Josh Flohr, Nutriquest, from the 2016 Allen D. Leman Swine Conference, September 17-20, 2016, St. Paul, Minnesota, USA.
More presentations at http://www.swinecast.com/2016-leman-swine-conference-material
By Kazi Ahmed Kabir, S.B. Saha, Manjurul Karim, Craig A. Meisner, Michael J. Phillips
Revitalizing the Ganges Coastal Zone Conference
21-23 October 2014, Dhaka, Bangladesh
http://waterandfood.org/ganges-conference/
In recent years, aquaculture has gained in importance as a renewable source of dietary protein and as a viable commercial activity. To maintain this position in the future and to continue to provide a good investment opportunity, the problems the sector currently faces must be addressed. One of the more important of these concerns is the cost of feed, which is estimated to be 50-60 percent of the total cost of production. Numerous studies on the use of different feed formulations, feed ingredients and feeding techniques have been conducted (Kaushik et al., 2004; Thiessen et al., 2003; Martinez et al., 2004; Enes et al.,2006; Izquierdo et al., 2003). These studies have included assessments of various alternative raw materials, vitamins and minerals, monitoring the amount of feed provided to the fish, and the addition of pigments and other feed additives to the diet. In particular, various feed additives with growth promoting properties came into prominence in these studies (Francis et al., 2005; Haroun et al., 2006; Abdel-Tawwab et al., 2008; Lara-Flores et al., 2003; Li and Gatlin, 2004;). Growth promoting feed additives may contain different ingredients as plant extracts, organic acids, probiotics, hormones etc.
High-density production of the Pacific White Shrimp, Litopenaeus vannamei, in...ssuserc18183
High-density production of the Pacific White Shrimp, Litopenaeus vannamei, in recycled culture water under zero-exchange conditions using settling tanks, foam fractionators and dissolved oxygen monitoring systems as management tools
Similar to Growth and production performance of tade mullet, Liza tade (Forsskal, 1775) at different stocking density in tide fed brackishwater pond rearing systems in West Bengal (20)
By M. Harunur Rashid, Faruk Hossain, Deb Kumar Nath, Parimal Chandra Sarker, AKM Ferdous, Timothy Russel
Revitalizing the Ganges Coastal Zone Conference
21-23 October 2014, Dhaka, Bangladesh
http://waterandfood.org/ganges-conference/
By Camelia Dewan, Marie-Charlotte Buisson and Aditi Mukherji
Revitalizing the Ganges Coastal Zone Conference
21-23 October 2014, Dhaka, Bangladesh
http://waterandfood.org/ganges-conference/
By Urs Schulthess, Timothy J. Krupnik, Zia Uddin Ahmed, Andy J. McDonald
Revitalizing the Ganges Coastal Zone Conference
21-23 October 2014, Dhaka, Bangladesh
http://waterandfood.org/ganges-conference/
By Asad Sarwar Qureshi, Samina Yasmin, Nikar C. Howlader, Timothy J. Krupnik
Revitalizing the Ganges Coastal Zone Conference
21-23 October 2014, Dhaka, Bangladesh
http://waterandfood.org/ganges-conference/
By Dr. Md. Ataur Rahman (Wheat Research Centre, BARI)
Revitalizing the Ganges Coastal Zone Conference
21-23 October 2014, Dhaka, Bangladesh
http://waterandfood.org/ganges-conference/
By S.B. Saha, K.A. Kabir, M.K. Mondal, M. Karim, P.L.C. Paul, M. Phillips, E. Humphreys, T.P. Tuong
Revitalizing the Ganges Coastal Zone Conference
21-23 October 2014, Dhaka, Bangladesh
http://waterandfood.org/ganges-conference/
By Shankar K Biswas, Tausif Ahmed Qurashi
Revitalizing the Ganges Coastal Zone Conference
21-23 October 2014, Dhaka, Bangladesh
http://waterandfood.org/ganges-conference/
By M.K. Mondal, N.K. Saha, A.K.M. Sharifullah, S.P. Ritu, P.L.C. Paul, E. Humphreys, T.P. Tuong, M.A. Rashid
Revitalizing the Ganges Coastal Zone Conference
21-23 October 2014, Dhaka, Bangladesh
http://waterandfood.org/ganges-conference/
By Dr. Pranesh Kumar Saha, Md. Nazrul Islam, Md. Imran Ullah Sarkar
Revitalizing the Ganges Coastal Zone Conference
21-23 October 2014, Dhaka, Bangladesh
http://waterandfood.org/ganges-conference/
By Md. Ruhul Amin Sarker
Revitalizing the Ganges Coastal Zone Conference
21-23 October 2014, Dhaka, Bangladesh
http://waterandfood.org/ganges-conference/
Sukanta K. Sarangi, D. Burman, S. Mandal, B. Maji, Elizabeth Humphreys, To Phuc Tuong, B.K. Bandyopadhyay, D.K. Sharma (Central Soil Salinity Research Institute, West Bengal, India)
Revitalizing the Ganges Coastal Zone Conference
21-23 October 2014, Dhaka, Bangladesh
http://waterandfood.org/ganges-conference/
By Subhasis Mandal, D. Burman, S.K. Sarangi, B.K. Bandyopadhyay, B. Maji (Central Soil Salinity Research Institute, West Bengal, India)
Revitalizing the Ganges Coastal Zone Conference
21-23 October 2014, Dhaka, Bangladesh
http://waterandfood.org/ganges-conference/
By Jitendra Kumar Sundaray, A. Bhattacharya, A.G. Ponniah, T.K. Ghoshal, A.D. Deo, J.P. Sharma, M. Phillips
Revitalizing the Ganges Coastal Zone Conference
21-23 October 2014, Dhaka, Bangladesh
http://waterandfood.org/ganges-conference/
By Golaum Faruque and Quazi Kabir, WorldFish
Revitalizing the Ganges Coastal Zone Conference
21-23 October 2014, Dhaka, Bangladesh
http://waterandfood.org/ganges-conference/
More from International Water Management Institute (IWMI) (20)
Many ways to support street children.pptxSERUDS INDIA
By raising awareness, providing support, advocating for change, and offering assistance to children in need, individuals can play a crucial role in improving the lives of street children and helping them realize their full potential
Donate Us
https://serudsindia.org/how-individuals-can-support-street-children-in-india/
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Russian anarchist and anti-war movement in the third year of full-scale warAntti Rautiainen
Anarchist group ANA Regensburg hosted my online-presentation on 16th of May 2024, in which I discussed tactics of anti-war activism in Russia, and reasons why the anti-war movement has not been able to make an impact to change the course of events yet. Cases of anarchists repressed for anti-war activities are presented, as well as strategies of support for political prisoners, and modest successes in supporting their struggles.
Thumbnail picture is by MediaZona, you may read their report on anti-war arson attacks in Russia here: https://en.zona.media/article/2022/10/13/burn-map
Links:
Autonomous Action
http://Avtonom.org
Anarchist Black Cross Moscow
http://Avtonom.org/abc
Solidarity Zone
https://t.me/solidarity_zone
Memorial
https://memopzk.org/, https://t.me/pzk_memorial
OVD-Info
https://en.ovdinfo.org/antiwar-ovd-info-guide
RosUznik
https://rosuznik.org/
Uznik Online
http://uznikonline.tilda.ws/
Russian Reader
https://therussianreader.com/
ABC Irkutsk
https://abc38.noblogs.org/
Send mail to prisoners from abroad:
http://Prisonmail.online
YouTube: https://youtu.be/c5nSOdU48O8
Spotify: https://podcasters.spotify.com/pod/show/libertarianlifecoach/episodes/Russian-anarchist-and-anti-war-movement-in-the-third-year-of-full-scale-war-e2k8ai4
ZGB - The Role of Generative AI in Government transformation.pdfSaeed Al Dhaheri
This keynote was presented during the the 7th edition of the UAE Hackathon 2024. It highlights the role of AI and Generative AI in addressing government transformation to achieve zero government bureaucracy
Jennifer Schaus and Associates hosts a complimentary webinar series on The FAR in 2024. Join the webinars on Wednesdays and Fridays at noon, eastern.
Recordings are on YouTube and the company website.
https://www.youtube.com/@jenniferschaus/videos
Jennifer Schaus and Associates hosts a complimentary webinar series on The FAR in 2024. Join the webinars on Wednesdays and Fridays at noon, eastern.
Recordings are on YouTube and the company website.
https://www.youtube.com/@jenniferschaus/videos
Up the Ratios Bylaws - a Comprehensive Process of Our Organizationuptheratios
Up the Ratios is a non-profit organization dedicated to bridging the gap in STEM education for underprivileged students by providing free, high-quality learning opportunities in robotics and other STEM fields. Our mission is to empower the next generation of innovators, thinkers, and problem-solvers by offering a range of educational programs that foster curiosity, creativity, and critical thinking.
At Up the Ratios, we believe that every student, regardless of their socio-economic background, should have access to the tools and knowledge needed to succeed in today's technology-driven world. To achieve this, we host a variety of free classes, workshops, summer camps, and live lectures tailored to students from underserved communities. Our programs are designed to be engaging and hands-on, allowing students to explore the exciting world of robotics and STEM through practical, real-world applications.
Our free classes cover fundamental concepts in robotics, coding, and engineering, providing students with a strong foundation in these critical areas. Through our interactive workshops, students can dive deeper into specific topics, working on projects that challenge them to apply what they've learned and think creatively. Our summer camps offer an immersive experience where students can collaborate on larger projects, develop their teamwork skills, and gain confidence in their abilities.
In addition to our local programs, Up the Ratios is committed to making a global impact. We take donations of new and gently used robotics parts, which we then distribute to students and educational institutions in other countries. These donations help ensure that young learners worldwide have the resources they need to explore and excel in STEM fields. By supporting education in this way, we aim to nurture a global community of future leaders and innovators.
Our live lectures feature guest speakers from various STEM disciplines, including engineers, scientists, and industry professionals who share their knowledge and experiences with our students. These lectures provide valuable insights into potential career paths and inspire students to pursue their passions in STEM.
Up the Ratios relies on the generosity of donors and volunteers to continue our work. Contributions of time, expertise, and financial support are crucial to sustaining our programs and expanding our reach. Whether you're an individual passionate about education, a professional in the STEM field, or a company looking to give back to the community, there are many ways to get involved and make a difference.
We are proud of the positive impact we've had on the lives of countless students, many of whom have gone on to pursue higher education and careers in STEM. By providing these young minds with the tools and opportunities they need to succeed, we are not only changing their futures but also contributing to the advancement of technology and innovation on a broader scale.
Presentation by Jared Jageler, David Adler, Noelia Duchovny, and Evan Herrnstadt, analysts in CBO’s Microeconomic Studies and Health Analysis Divisions, at the Association of Environmental and Resource Economists Summer Conference.
A process server is a authorized person for delivering legal documents, such as summons, complaints, subpoenas, and other court papers, to peoples involved in legal proceedings.
Growth and production performance of tade mullet, Liza tade (Forsskal, 1775) at different stocking density in tide fed brackishwater pond rearing systems in West Bengal
1. Growth
and
produc.on
performance
of
tade
mullet,
Liza
tade
(Forsskal,
1775)
at
different
stocking
density
in
.de
fed
brackishwater
pond
rearing
systems
in
West
Bengal
ICAR-‐
Central
Ins.tute
of
Brackishwater
Aquaculture,
India
11/4/14
CPWF
WORKSHOP-‐DHAKA
1
Subhra
Bikash
BhaJacharyya,Tapas
Kumar
Ghoshal
Jitendra
Kumar
Sundaray*
2. ü Tade
mullet-‐
One
of
the
most
preferred
food
fish
in
India
&
Bangladesh
ü Grows
up
to
250
g
in
one
year
and
about
1
kg
in
two
years
in
tradi.onal
polyculture
system
ü Informa.on
on
growth
and
produc.on
performance
in
monoculture
is
scanty
ü Scarcity
of
informa.on
on
op.mum
stocking
density
for
L.
tade
monoculture
ü System
and
species
diversifica.on
is
need
of
hour
Background
11/4/14
2
Objec.ve
ü To
op.mize
the
stocking
density
for
monoculture
of
Liza
tade
3. q The
experiment-‐
Period
of
240
days
q Experimental
farm-‐
Ramkrishnachawk
village,
Kakdwip,
24
Pgs
(S),
West
Bengal,
India
q Tade
mullets-‐
Reared
at
1
(D1),
2
(D2),
and
3
(D3)
fish/
m2
stocking
densi.es
with
replica.on
q Ponds
prepara.on-‐
Following
standard
procedure
for
brackishwater
fish
culture
Materials
and
methods
11/4/14
CPWF
WORKSHOP-‐DHAKA
3
Contd….
4. q Stocking-‐Nursery
reared
tade
fingerlings
(4.20±0.91
g,
10.30±0.36
cm)
q Feed-‐
Formulated
floa.ng
pellets
@
10-‐2%
of
biomass
(protein:
29.7%,
fat:
4.9%)
q Feeding-‐
Twice
daily
at
0800
and
1630
hrs
q Aera.on
(2
×
2
HP)
was
provided
in
each
ponds
as
follows:
Days
of
culture
Aerator
run
.me
Morning
Evening
1
-‐
60
0500
-‐
0530
1500
-‐
1530
61
-‐120
0500
-‐
0540
1450
-‐
1530
121
–
180
0500
-‐
0550
1440
-‐
1530
181
-‐
240
0500
-‐
0600
1430
-‐
1530
11/4/14
CPWF
WORKSHOP-‐DHAKA
4
5. q Daily
weight
gain
(DWG)
was
determined
as:
𝑫𝑾𝑮= 𝑾↓𝒇 − 𝑾↓𝒊 /𝒕
q Specific
growth
rate
(SGR)
was
determined
as:
𝑺𝑮𝑹= 𝐥 𝐧 𝒘↓𝒇 − 𝒍 𝒏 𝒘↓𝒊 /𝒕 ×𝟏𝟎𝟎
q Length-‐weight
rela.onship
was
calculated
as:
𝑾= 𝒂. 𝑻 𝑳↑𝒃
q Condi.on
factor
(K)
was
determined
using
Fulton’s
condi.on
equa.on
as:
𝑲= 𝒘 /( 𝑻 𝑳) ↑ 𝟑 × 𝟏 𝟎↑ 𝟓
𝑊↓𝑓
and
𝑊↓𝑖
are
the
average
final
and
iniGal
weight
in
Gme
t
𝑊↓𝑓
and
𝑊↓𝑖
are
the
average
final
and
iniGal
weight
in
Gme
t
W
is
fish
weight
(g),
TL
is
total
length
(mm),
a:
proporGonality
constant
,b:
isometric
exponent
𝑤
is
the
average
weight
(g)
and
𝑇 𝐿
is
the
average
total
length
(mm)
Fish
growth
parameters
11/4/14
CPWF
WORKSHOP-‐DHAKA
5
6. q Feed
conversion
ra.o
(FCR)
was
determined
as:
FCR
=
total
feed
intake/
total
biomass
produc.on
q Survival
(Sr
%)
was
determined
as:
Sr
(%)
=
(number
of
fish
harvested/
number
of
fish
stocked)
×100
q Coefficient
of
varia.on
(CVhw)
at
harvest
weight
was
determined
as:
CVhw
=
mean
standard
devia.on
of
final
weight/
mean
final
weight
of
fish
q Fish
produc.vity
(kg/
ha)
was
determined
as:
Pr
(kg/
ha)
=
Stocking
no
(/ha)×
ABW
(kg)
×
Sr
(%)
Fish
produc.on
parameters
11/4/14
CPWF
WORKSHOP-‐DHAKA
6
7. q Physico-‐chemical
parameters
–
(APHA,
1998)
o Water
temperature
(⁰C)
o Salinity
(ppt)
o pH
o Dissolved
oxygen
(DO,
mg
L-‐l)
o Nitrite-‐nitrogen
(NO2-‐N,
µg
L-‐l)
o Nitrate-‐nitrogen
(NO3-‐N,
µg
L-‐l)
o Ammonia-‐nitrogen
(NH3-‐N,
µg
L-‐l)
o Phosphate-‐phosphorus
(PO4-‐P,
µg
L-‐l)
q Plankton
samples
collected
monthly
by
filtering
50
L
of
water
through
bol.ng
silk
plankton
net
(mesh
size
64
μm).
q Quan.ta.ve
&
qualita.ve
analysis
-‐
Direct
census
method
(Jhingran
et
al.,
1969)
Water
quality
parameters
11/4/14
CPWF
WORKSHOP-‐DHAKA
7
8. Highest
growth
was
observed
in
D1
(225±10
g)
followed
by
D2
(212±8
g)
and
D3
(167±10
g)
0
50
100
150
200
250
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Average
Body
Weight
(g)
Months
Growth
of
tade
mullet
in
1,
2
and
3
fish/
m2
stocking
density
D1
D2
D3
0
50
100
150
200
250
D1
D2
D3
Average
body
weight
(g)
Stocking
density
Average
body
weight
of
tade
mullet
at
harvest
in1,
2
and
3
fish/
m2
stocking
density
Results
11/4/14
CPWF
WORKSHOP-‐DHAKA
8
9. 0.50
0.60
0.70
0.80
0.90
1.00
1.10
D1
D2
D3
Daily
weight
gain
(g/
day)
Daily
weight
gain
(DWG,
g/
day)
of
tade
mullet
in
1,
2
and
3
fish/
m2
stocking
density
1
1.2
1.4
1.6
1.8
2
2.2
2.4
D1
D2
D3
Specific
growth
rate
(%/
day)
Specific
growth
rate
(SGR,
%/
day)
of
tade
mullet
in
1,
2
and
3
fish/
m2
stocking
density
Daily
weight
gain
and
specific
growth
rate
decreased
with
increasing
stocking
density
11/4/14
CPWF
WORKSHOP-‐DHAKA
9
10. TL
=
0.0075W3.08
R²
=
0.98
0
50
100
150
200
250
300
5
15
25
35
Body
weight
(g)
Total
length
(cm)
D1
TL
=
0.0056W3.01
R²
=
0.96
0
50
100
150
200
250
300
5
15
25
35
Body
weight
(g)
Total
length
(cm)
D2
TL
=
0.0085W2.92
R²
=
0.97
0
50
100
150
200
250
5
15
25
35
Body
weight
(g)
Total
length
(cm)
D3
Tade
mullet
in
D2
showed
isometric
growth
(b=3.01),
whereas
fishes
in
D1
and
D3
showed
posi.ve
allometric
(b
=
3.08)
and
nega.ve
allometric
(b=2.92)
growth
respec.vely
Note:
when
the
b
parameter
is
equal
to
3
growth
is
isometric
and
when
it
is
less
than
or
greater
than
3
it
is
allometric
(Enin,
1994).
Woo[on
(1992)
was
more
specific
and
stated
growth
to
be
posiGve
allometric
when
organism
weight
increases
more
than
length
(b<3),
and
negaGve
allometric
when
length
increases
more
than
weight
(b>3).
11. 0.6
0.7
0.8
0.9
1
1.1
1.2
1.3
1.4
D1
D2
D3
Condi.on
factor
(K)
Condi.on
factor
(K)
of
tade
mullet
in
1,
2
and
3
fish/
m2
stocking
density
60
65
70
75
80
85
90
95
100
D1
D2
D3
Survival
(%)
Survival
(%)
of
tade
mullet
in
1,
2
and
3
fish/
m2
stocking
density
Condi.on
factor
(K)
and
survival
(%)
reduced
with
increasing
stocking
density
11/4/14
11
12. 1
1.2
1.4
1.6
1.8
2
2.2
D1
D2
D3
Feed
conversion
ra.o
(FCR)
Feed
conversion
ra.o
(FCR)
of
tade
mullet
reared
in
1,
2
and
3
fish/
m2
stocking
density
1
1.5
2
2.5
3
3.5
4
4.5
5
D1
D2
D3
Produc.on
(ton/
ha)
Produc.on
(ton/
ha)
of
tade
mullet
reared
in
1,
2
and
3
fish/
m2
stocking
density
Feed
conversion
ra.o
(FCR)
and
produc.on
(ton/
ha)
increased
with
increasing
stocking
density
11/4/14
CPWF
WORKSHOP-‐DHAKA
12
13. Water
quality
parameters
of
Tade
mullet
(Liza
tade)
rearing
ponds
at
1
(D1),
2
(D2)
and
3
(D3)
fish/
m2
stocking
density
Water
parameters D1 D2 D3
Water
temperature
(ºC) 29.9±1.7 29.9±1.7 29.7±1.9
pH 8.0±0.2a 7.9±0.2a 7.7±0.3b
DO
(mg
L-‐1) 6.0±0.4a 5.9±0.5a 5.6±0.5b
Salinity
(ppt) 16.8±5.3 16.7±5.3 16.8±5.1
NO2-‐N
(µg
L-‐l) 36.7±3.8c 41.6±5.6b 54.7±6.6a
NO3-‐N
(µg
L-‐l) 194.1±15.4c 211.4±11.1b 279.7±8.9a
NH4-‐N
(µg
L-‐l) 175.1±14.6b 179.1±17.9b 254.8±36.2a
PO4-‐P
(µg
L-‐l) 182.6±16.4a 169.1±8.9b 127.6±12.7c
Phytoplankton
(nos
L-‐1
×103) 17.2±1.2a 15.1±0.9b 12.5±0.7c
Zooplankton
(nos
L-‐1
×103) 3.7±0.2a 3.1±0.2b 2.8±0.1c
Means
bearing
different
superscripts
indicate
sta.s.cally
significant
differences
in
a
row
(p<0.05);
Values
are
expressed
as
mean
±
SE
of
three
replicate
ponds.
NO3-‐N,
NO2-‐N
and
NH4-‐N
increased
and
DO,
pH,
PO4-‐P
and
plankton
popula.on
decreased
with
increasing
stocking
density
11/4/14
CPWF
WORKSHOP-‐DHAKA
13
14. 14
Economic
analysis
revealed
higher
B:
C
ra.o
in
treatment
D2
Currency
men.oned
is
Indian
Rupee
(100
INR=1.67
US$).
Item QuanGty/
ha Rate
(Rs) D1 D2 D3
Opera.onal
cost
(OC)
T a d e
m u l l e t
fingerlings
10000,
20000
and
30000
D1,
D2
and
D3
5
fingerling-‐1 50000 100000 150000
Manure 250
kg 20
kg-‐1 5000 5000 5000
Lime 3000
kg 6
kg-‐1 18000 18000 18000
Feed 2982,
6303
and
7825
kg
in
D1,
D2
and
D3
35
kg-‐1 104385 220605 273875
Labour 140,
160
and180
man-‐
days
in
D1,
D2
and
D3
250
man-‐day-‐1 35000 40000 45000
Sub
total
212385 383605 491875
Interest
on
OC
(8
months)
Annual-‐12
%
16991 30695 39350
Total
OC
229376 414300 531225
Economic
return
Tade
mullet
sale 1977,
3708
and
4309
kg
from
D1,
D2
and
D3
210,
200
and
180
from
D1,
D2
and
D3
415170 741600 775620
Gross
return
185794 327300 244395
Benefit
cost
(B:C)
ra.o
1.81 1.97 1.46
Comparison
of
economic
parameters
among
treatments
15. Conclusion
11/4/14
CPWF
WORKSHOP-‐DHAKA
15
• The
results
demonstrate
the
feasibility
of
system
diversifica.on
with
tade
mullet
farming
• Decrease
in
growth
parameters
at
higher
densi.es
is
probably
due
to
crowding
• Economic
analysis
revealed
highest
benefit
cost
ra.o
of
1.97:
1
with
2
fish/
m2
stocking
density
• Stocking
density
of
3
fish/
m2
resulted
a
produc.on
up
to
4
tons/
ha
in
8
months
16. THANK
YOU
ALL
11/4/14
GROW
FISH-‐
GROW
WITH
FISH
16