scholarly journals Inclusion of Bivalve in Carp Polyculture Ponds Managed by Small Indigenous People Under Barind Tract

2021 ◽  
Vol 29 (2) ◽  
pp. 99-110
Author(s):  
T Khatun ◽  
RA Raka ◽  
MA Islam ◽  
MA Hossain ◽  
MA Rasel ◽  
...  
Keyword(s):  
Weight Gain ◽  
Growth Performance ◽  
Indigenous People ◽  
Stocking Density ◽  
Ctenopharyngodon Idella ◽  
Hypophthalmichthys Molitrix ◽  
Freshwater Bivalve ◽  
Barind Tract ◽  
Bivalve Aquaculture

The present experiment was carried out in the household ponds (0.04 to 0.08 ha in area with 1.3 to 2.4 m in depth) of small indigenous people at Barind Tract region, northwest Bangladesh during September, 2017 to June, 2018 to know the growth performance of bivalve with carp. Two different treatments with 3 replicates were used, in treatment one (T1) only the carp polyculture was performed and in treatment two (T2) carp and bivalve polyculture was performed. Good quality of carp fingerlings (Labeo rohita, Gibelion catla, Cirrhinus cirrhousus, Hypophthalmichthys molitrix and Ctenopharyngodon idella) and freshwater bivalve (Lamellidens marginalis) seeds were stocked in the ponds. Stocking density and size of the seeds were similar for all of the study ponds. During the experiment there were no significant differences was observed in growth performance of the fishes between the two different treatments (p<0.05). The weight gain was recorded for L. rohita 420.31 g in T1 and 436.25 g in T2, for G. catla 237.01 g in T1 and 329.66 g in T2, for C. cirrhosus 263.53 g in T1 and 301.74 g in T2, for H. molitrix 559.6 g in T1 and 593.57 g in T2, for C. idella 510.11 g in T1 and 619.57g in T2. The weight gain of L. marginalis was 12.3 g in T2. During this experiment the production of carp was recorded 2524.5 kg/ha in T1 and 2618.2 kg/ha in T2 and the bivalve production was 1284.4 kg/ha in T2. This study is the first report on growth performance of bivalve with carp in the Barind Tract region of northwest Bangladesh. The result of this study will be helpful for the development of bivalve aquaculture in this climatically vulnerable region. J. Bio-Sci. 29(2): 99-110, 2021 (December)

Modern features of aquaculture of cyprinids in the republic of Iraq

2020 ◽  
pp. 6-14
Author(s):  
Farhan Yasin Hamed ◽  
Adelia Zakirovna Anokhina ◽  
Natalia Viktorovna Sudakova ◽  
Damelya Kazhigalievna Magzanova
Keyword(s):  
Silver Carp ◽  
Stocking Density ◽  
Fish Farming ◽  
Pond Water ◽  
Government Support ◽  
Bighead Carp ◽  
Ctenopharyngodon Idella ◽  
Natural Food ◽  
Hypophthalmichthys Molitrix ◽  
Fish Farms

It is shown that the leading role in the aquaculture of Iraq belongs to Cyprinids, which account for over 80 % of all fish farming production. The most widespread in the country are four main world species of carp aquaculture: common carp (Cyprinus carpio), grass carp (Ctenopharyngodon idella), silver carp (Hypophthalmichthys molitrix) and bighead carp (Aristichthys nobilis). Basically, the traditional technology of growing Cyprinids in ponds is used, which includes the main fish farming processes: care of broodstock to prepare them for spawning, collecting eggs and milt, eggs fertilization and incubation of embryos, raising juveniles and marketable fish. Currently, there are about 2 thousand private fish farms, which have ponds of various sizes from 4 to 100 hectares. Cultivation of Cyprinids in Iraq is carried out mainly by extensive methods: the use of the natural food base of reservoirs with low fish stocking density in polyculture. The fish productivity of ponds varies greatly in different fish farms from 1,5 to 6 t/ha, which is due to economic reasons. The data on changes in the temperature of pond water during the year and hydrochemical indicators are given, which shows favorable conditions for Cyprinids rearing. Information on the use of compound feeds for growing carp in ponds is provided, and data on the composition and nutritional value of the feed used. The fish culture indicators for the main biotechnical processes of the rearing of four Cyprinid species in Iraq are described in detail. In the conclusion, it is indicated that for the effective development of aquaculture in Iraq, government support is needed in the form of a developed long-term program and legislative acts.

scholarly journals Efficacy and suitability of whole wheat flour on the growth and survival of Rohu (Labeo rohita)

2019 ◽  
Vol 6 (2) ◽  
pp. 345-352
Author(s):  
Shovon Sarker ◽  
Md Fazle Rohani ◽  
Md Shafiqur Rahman ◽  
Md Sazzad Hossain
Keyword(s):  
Weight Gain ◽  
Survival Rate ◽  
Growth Performance ◽  
Wheat Flour ◽  
Labeo Rohita ◽  
Stocking Density ◽  
Quality Parameters ◽  
Whole Wheat Flour ◽  
Growth And Survival ◽  
Whole Wheat

The efficacy and suitability of dietary whole wheat flour supplementation was evaluated on the growth performance and survival of rohu (Labeo rohita). The study was conducted in 12 experimental aquaria at the Wet Laboratory, Department of Aquaculture, Bangladesh Agricultural University, Mymensingh. A total of 180 fingerlings of mean initial weight of 1.744±00 g were stocked at the same stocking density (268 fingerlings/m3). Four different treatments (T1, T2, T3 and T4) each with three replications were performed having different level of whole wheat flour such as 0% whole wheat flour (T1), 5% whole wheat flour (T2), 10% whole wheat flour (T3) and 15% whole wheat flour (T4). Feeds were supplied at 5% body weight twice daily in the morning at 9.00 am and in the afternoon at 5.00 pm throughout the study period. The rations were adjusted every week when new weights of the fish for various experimental aquariums were determined. At the end of the 63 days study period, the growth performance parameters such as mean final weight (g), weight gain (g), percent weight gain (%), specific growth rate (%/day) and the best feed utilization in terms of food conversion ratio were found highest at treatment 4 where fishes were fed with inclusion of 15% whole wheat flour and lowest was found at treatment 1 (fed with inclusion of 0% whole wheat flour). Water quality parameters were within the acceptable range and survival rate was found 100% in all treatment. Therefore, it can be concluded that treatment 4 (highest growth performance and survival rate of L. rohita with supplementation of 15% whole wheat flour containing diet) can be chosen by fish farmers for commercial culture of this species. Res. Agric., Livest. Fish.6(2): 345-352, August 2019

scholarly journals Effects of tryptophan supplementation on growth performance, antioxidative activity, and meat quality of ducks under high stocking density

2015 ◽  
Vol 94 (8) ◽  
pp. 1894-1901 ◽  
Author(s):  
Y. Liu ◽  
J.M. Yuan ◽  
L.S. Zhang ◽  
Y.R. Zhang ◽  
S.M. Cai ◽  
...  
Keyword(s):  
Growth Performance ◽  
Meat Quality ◽  
Antioxidative Activity ◽  
Stocking Density

scholarly journals Effects of Organic and Inorganic Fertilizers on the Growth Performance of Carps in Earthen Ponds through Polyculture System

Our Nature ◽  
1970 ◽  
Vol 9 (1) ◽  
pp. 16-20 ◽  
Author(s):  
S. Jasmine ◽  
F. Ahamed ◽  
S.H. Rahman ◽  
M.A.S. Jewel ◽  
M.Y. Hossain
Keyword(s):  
Growth Performance ◽  
Stocking Density ◽  
Daily Basis ◽  
Mustard Oil ◽  
Catla Catla ◽  
Total Production ◽  
Fish Production ◽  
Hypophthalmichthys Molitrix ◽  
Earthen Ponds ◽  
Organic As

Aquaculture is the fastest-growing food-producing sector in the World and has exhibited continuous improving in total production throughout the recent decades. A carp polyculture experiment was carried out to evaluate the growth performance of major carps in semi-intensive fish culture system. Two earthen ponds located at Kadirganj of Boalia thana under Rajshahi district of Bangladesh were selected to study the effect of fertilizer (organic as cowdung and in-organic as triple super phosphate) in supplemented ponds on the growth of carps. Pond -01 was fertilized with cowdung and TSP at the rate of 1728 and 20 kg/h respectively, at 10-day intervals. Pond -02 was without fertilizer. Each pond was stocked with 30% Labeo rohita, 20% Catla catla, 15% Cirrhinus mrigala, 15% Hypophthalmichthys molitrix, and 20% Cyprinus carpio with a total stocking density of 10000/ha. Both ponds were supplemented with mustard oil cake, rice bran and maize bran at the rate of 2.5 kg/ha for each, given for a period of six months as daily basis. The net fish production was found to be 2605 and 1795 kg/ha/year in pond -01 and pond -02, respectively. The results showed that fish production was significantly higher in pond -01 than pond -02 (P<0.05). Pond -01 showed 1.45 times greater fish production than that of pond -02. The results of this study provided invaluable information for the sustainable aquaculture, as well as providing an important baseline for future studies within Bangladesh and surrounding developing countries.DOI: http://dx.doi.org/10.3126/on.v9i1.5727

scholarly journals Effects of Stocking Density on the Growth Performance, Immune Status and Breast Meat Quality of Broiler

2021 ◽  
Vol 48 (1) ◽  
pp. 13-22
Author(s):  
Hee-Jin Kim ◽  
Jin-Joo Jeon ◽  
Hyun-soo Kim ◽  
Jiseon Son ◽  
Kwang-Yeol Kim ◽  
...  
Keyword(s):  
Growth Performance ◽  
Meat Quality ◽  
Immune Status ◽  
Stocking Density ◽  
Breast Meat

scholarly journals Comparison Of Growth Performance Through Different Levels Of Supplementary Feed In Fish Polyculture System

2016 ◽  
Vol 42 (2) ◽  
pp. 229-234
Author(s):  
Nazia Sultana ◽  
Md Abu Sayed Jewel ◽  
Md Rashedul Kabir Mondol
Keyword(s):  
Growth Performance ◽  
Stocking Density ◽  
Fish Farming ◽  
Ctenopharyngodon Idella ◽  
Catla Catla ◽  
Net Benefit ◽  
Net Profit ◽  
Supplementary Feed ◽  
Benefit Cost ◽  
Different Levels

An experiment was carried out to evaluate the growth performance of carp polyculture system supplemented with different levels of supplementary feed. To undertake this investigation, two earthen ponds were stocked with 25% Labeo rohita, 25% Catla catla, 20% Labeo calbasu, 20% Ctenopharyngodon idella and 10% Hypopthalmichthys molitrix with a total stocking density of 10000/ha. The net fish production was found to be 2,166 and 3,874 kg/ha/yr in pond-01 and pond-02, respectively. The total cost of fish farming of pond-01 and pond-02 were 64,268 BDT and 88,568 BDT per ha. The total return of pond-01and pond-02 were BDT 1,04,280 BDT and 1,69,250 BDT per ha. Net benefit from pond-01 and pond-02 was 40,312 BDT and 80,682 BDT respectively. Net profit margin of pond-01 and pond-02 was 62.73% and 91.10%. And finally the benefit cost ratios (CBR) were found to be 0.62:1 and 0.91:1 in pond-01 and pond-02, respectively. Asiat. Soc. Bangladesh, Sci. 42(2): 229-234, December 2016

scholarly journals Feeding frequency and growth performance of juvenile pink shrimp (Farfantepenaeus paulensis)

2015 ◽  
Vol 67 (5) ◽  
pp. 1415-1420 ◽  
Author(s):  
C. S. Pontes ◽  
L. C. Marques ◽  
E. R. Andreatta ◽  
R. S. T. Moura ◽  
G. G. Henry-Silva
Keyword(s):  
Weight Gain ◽  
Growth Performance ◽  
Crude Protein ◽  
Stocking Density ◽  
Negative Influence ◽  
Nutrient Leaching ◽  
Pink Shrimp ◽  
Feeding Frequency ◽  
Farfantepenaeus Paulensis ◽  
Effect Of Feeding

ABSTRACTIt is generally believed that increasing feeding frequency has immediate benefits, including reduced nutrient leaching and increased shrimp growth. In this context, the aim this work was to evaluate the effect of feeding frequency in growth performance of Farfantepenaeus paulensis. Juveniles of Farfantepenaeus paulensis were grown for 30 days in pen enclosures, at a stocking density of 5 shrimp/m2. The shrimp were fed on feeding trays at a rate of 8% of their biomass per day, with treatments of one, two, three and four times per day, with four replicates each. The results showed no differences (5% probability) in biomass gain of F. paulensis when feed was offered two, three or four times per day. However, it was observed that the once a day frequency had a negative influence on weight gain for this species of shrimp. We conclude that the supply of food with 35% crude protein twice a day is sufficient for the growth of F paulensis. Feeding frequency of three or four times can provide increased spending in the cultivation of juveniles of this species.

scholarly journals Evaluation of health status and meat quality of dumbo catfish Clarias gariepinus maintained using the biofloc system

2020 ◽  
Vol 19 (2) ◽  
pp. 190-198
Author(s):  
Anang Fajrin ◽  
Nurbambang Priyo Utomo ◽  
Julie Ekasari ◽  
Sri Nuryati
Keyword(s):  
Health Status ◽  
Growth Performance ◽  
Meat Quality ◽  
Clarias Gariepinus ◽  
Stocking Density ◽  
African Catfish ◽  
Fish Stocking ◽  
Commercial Feed ◽  
Fish Survival

This research aimed to evaluate the health status, growth performance, and meat quality of African catfish Clariasgariepinus maintained in biofloc and nonbiofloc systems. This study applied 3 treatments with 4 replications, i.e.K500 (control, a non-biofloc system at a fish stocking density of 500/m3), BF500 (biofloc system at a fish stockingdensity of 500/m3), and BF700 (biofloc system at a fish stocking density of 700 /m3). The initial body length andbodyweight of the fish used in this experiment were 10–12 cm and 10–12g, respectively. Feeding was done byusing a commercial feed containing 29.76% protein content. The results showed that fish survival in treatmentsBF500 and BF700 were significantly different (P<0.05) from the control. The growth rate of African catfish in thecontrol (K) was the lowest (3.64 ± 0.56%) among the treatments. The results of the organosensory test showed thatthe application of biofloc systems produced a higher quality of fish meat with a range value of 7–9 compared to thatof the control with a range of 6–7. In conclusion, the application of biofloc systems could improve the fish healthstatus, growth performance, and meat quality of African catfish. Keywords: biofloc systems, Clarias gariepinus, density, health status, meat quality ABSTRAK Penelitian ini bertujuan mengevaluasi status kesehatan, kinerja pertumbuhan, dan kualitas daging ikan lele AfrikaClarias gariepinus yang dipelihara menggunakan sistem bioflok dan nonbioflok. Penelitian ini menggunakan 3perlakuan dengan 4 kali ulangan, yang terdiri dari: K500 (kontrol, sistem nonbioflok dengan kepadatan ikan 500ekor/m3), perlakuan BF500 (sistem bioflok dengan kepadatan ikan 500 ekor/m3), dan perlakuan BF700 (sistembioflok dengan kepadatan ikan 700 ekor/m3). Ikan yang digunakan berukuran panjang dan bobot awal masingmasing10–12 cm dan 10–12 g. Pemberian pakan dilakukan dengan menggunakan pakan komersil dengan 29,76%protein. Hasil penelitian menunjukan tingkat kelangsungan hidup antara perlakuan BF500 dan BF700 berbeda nyata(P<0.05) dengan perlakuan K500. Laju pertumbuhan ikan lele pada perlakuan K500 lebih rendah dibandingkanperlakuan lain. Hasil pengujian organosensory menunjukkan bahwa ikan yang dipelihara dalam sistem bioflokmenghasilkan kualitas daging yang lebih tinggi dengan kisaran nilai 7–9 dibandingkan dengan ikan K500 dengannilai 6–7. Berdasarkan hasil penelitian ini dapat disimpulkan bahwa aplikasi sistem bioflok dapat meningkatkanstatus kesehatan, laju pertumbuhan, dan kualitas daging ikan lele Afrika. Kata kunci: bioflok, Clarias gariepinus, kepadatan, kualitas daging, status kesehatan

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