scholarly journals Present status of broodstock management at carp hatcheries in Jessore

2014 ◽  
Vol 11 (2) ◽  
pp. 349-358
Author(s):  
MA Samad ◽  
MT Hossain ◽  
BMS Rahman
Keyword(s):  
Present Status ◽  
Stocking Density ◽  
Nutritional Composition ◽  
Culture Technique ◽  
Mustard Oil ◽  
Crude Lipid ◽  
Survey Report ◽  
Bean Flour ◽  
The Cost ◽  
Brood Fish

This study represented a survey report on present status of management of carp brood fish. The survey was conducted with 40 hatcheries at Chacrha in Jessore from June to November, 2012. Production of brood fish was found to depend on the combined interaction between feed and culture technique. Some information showed that brood fish selection for induced breeding was done on the basis of their experience. Pond preparation was carried out properly but stocking density of brood fish was quite high and water quality was not maintained properly. Negative selection of brood fish was done in few hatcheries aiming at reducing the cost for collecting or purchasing good quality broods. The sources of brood fish were mainly own and other sources were Halda River, Padma River, Govertment brood bank and World Fish Center. Feed used for brood carp fish were mainly rice bran (34.57%), mustard oil cake (21.78%), vitamin and mineral premix (0.8%), wheat flour (8.64%), fish meal (8.64%) and soya bean flour (10.37%), maize flour (6.91%), rice ( 6.91%), di-calcium (1.73%), salt (0.34%) and antioxidant (0.04%) . Nutritional composition of feed was mainly crude protein (30-40%), crude lipid (10-12%), carbohydrate (20-30%). Protein percentage of feed always tried to keep 26% even though it was varied due to the other feed ingredients. Fertilizer such as Triple super phosphate (0.73 kg/dec), urea (0.25 kg/dec), potash (1.5 kg/decl), cowdung (5.19 kg/dec), poultry offal (1.9 kg/dec) and Murite of potash (0.13 kg/dec) were used. Scientific brood and hatchery management could be a good approach to attain the main purpose of aquaculture. DOI: http://dx.doi.org/10.3329/jbau.v11i2.19939 J. Bangladesh Agril. Univ. 11(2): 349-358, 2013

scholarly journals Culture possibility of scheilbeid catfish using formulated feed in natural pond

1970 ◽  
Vol 6 (2) ◽  
pp. 375-380 ◽  
Author(s):  
MA Razzaque ◽  
MA Mazid ◽  
MN Islam ◽  
MA Mansur
Keyword(s):  
Research Study ◽  
Stocking Density ◽  
Culture Technique ◽  
Mustard Oil ◽  
Food Conversion ◽  
Initial Weight ◽  
Experimental Conditions ◽  
Mustard Oil Cake ◽  
Natural Pond ◽  
Formulated Feed

A research study was conducted to investigate the culture possibility of fresh water catfish Pangasius pangasius with formulated feed in natural ponds. The stocking density was chosen as 8000 fry/ha with an initial weight of 42.57±2.51 g. The formulated feed contained 45% fishmeal, 30% mustard oil cake, 15% wheat bran and 10% rice bran to supply 40.48% protein in feed. The growth of Pangasius pangasius in terms of net weight gain was found as 266.49g, which was statistically significant (p<0.05). The food conversion ratio (FCR) observed during this research study was high (7.58). There was no variation in the biochemical composition of the fish as a result of such culture technique and experimental conditions. The whole experiment was conducted for a period of 10 months. Production of fish was found to be 2.13 tones/ha using this formulated feed. Keywords: Culture; Pangasius pangasius; Formulated feed; Pond DOI: 10.3329/jbau.v6i2.4837 J. Bangladesh Agril. Univ. 6(2): 375-380, 2008

scholarly journals Effects of Using Hazelnut Husk, Wood Shaving and of the Mixture at Different Thicknesses on Broiler Performances, Some Organ Weights, Foot-Pad Dermatitis and Litter Traits

2020 ◽  
Vol 8 (6) ◽  
pp. 1399-1404
Author(s):  
Musa Sarıca ◽  
Kadir Erensoy
Keyword(s):  
Stocking Density ◽  
Litter Type ◽  
Positive Effects ◽  
Wood Shavings ◽  
Broiler Production ◽  
Litter Traits ◽  
Hazelnut Husk ◽  
Wood Shaving ◽  
Foot Pad ◽  
The Cost

This study was carried out to determine the effects of the use of hazelnut husk (HH), wood shavings (WS) and the mixture of 50% hazelnut husk + 50% wood shavings (MIX) in two different thicknesses (4 and 8 cm) as a litter material in broiler production. The experiment was carried out as a factorial experimental design (3 litter type and 2 thickness) and stocking density was 10 chickens per m2. At 6 wk. of age, the effect of litter types and thicknesses on broiler live weights, feed efficiency, and livability, were not significant. Also, no differences were found in terms of gizzard, digestive tract, abdominal fat and edible internal organ weight percentages. While carcass yield varied between litter groups, there was no difference between litter thicknesses. The litter moisture levels at the end of the trial were not affected the litter type and litter thickness, while the foot pad dermatitis (FPD) rates were significantly affected. The highest FPD levels were determined in the HH litter and 4 cm thickness. As a result, the use of HH, WS and MIX of them with a thickness of 4 and 8 cm had no effect on other traits except for FPD levels. It has been observed that these litter materials may be used successfully in broiler production and use of 8 cm thickness litter has minor positive effects except that the cost of litter has doubled.

scholarly journals Water quality, growth and production performance of stinging catfish, Heteropneustes fossilis (Bloch) in cemented tanks with two different stocking densities

2019 ◽  
Vol 47 (1) ◽  
pp. 107-119
Author(s):  
Dulon Roy ◽  
Abdullah Al Masud ◽  
Pritam Kumar Saha ◽  
MM Kutubuddin ◽  
Md Muzahidul Islam
Keyword(s):  
Water Quality ◽  
Body Weight ◽  
Survival Rate ◽  
Stocking Density ◽  
Culture Technique ◽  
Production Performance ◽  
Heteropneustes Fossilis ◽  
Tank Culture ◽  
Significant Difference ◽  
T1 And T2

Attempt has been taken to develop intensive tank culture technique providing natural environment for Stinging catfish (Heteropneustes fossilis) inside tank to increase survival rate as well as production. The experiment was conducted for a period of 150 days in two tanks (T1 and T2) of 300 m2. Fish fries with a mean weight and length ranged from 1.02 to 2.2 g and 2.7 to 3.5 cm were stocked in T1 and T2, respectively. Stocking density of fingerlings were 1, 25,000 and 1, 50,000 per Ha in T1 and T2, respectively. Commercial pelleted feed was supplied to tank reared fish twice daily at a rate of 3-10% of body weight per day and later feeding rate was adjusted based on body weight by sampling. Important water quality parameters (temperature, DO, pH, transparency, ammonia and nitrate) were recorded weekly throughout the culture period. Survival rate was 87% and 84% in T1 and T2, respectively. Mean final weight were 41.73 ± 2.09g and 40.6 ± 0.90 g in T1 and T2, respectively. Length-weight relationship indicates that the growth rate was always higher in T1 followed by T2. Results showed that net yield was relatively higher in T2 (5115.35 ± 113.13 Kg/ha) than T1 (4537.12 ± 227.4 Kg/ha). In case of production, there was significant difference (p < 0.05) between two treatments. This experiment demonstrated the potential of H. fossilis production through new technique of tank culture system. However, more research is needed using local feed ingredients with higher stocking density. Bangladesh J. Zool. 47(1): 107-119, 2019

scholarly journals Growth Performances and Proximate Composition of Mystus Cavasius (Hamilton, 1822) Cultured in Recirculating Aquaculture System Under Different Stocking Densities

2020 ◽  
Vol 29 (2) ◽  
pp. 137-145
Author(s):  
Md Mizanur Rahman ◽  
Gouri Mondal ◽  
MD Marufujjaman Mithu ◽  
Md Golam Rabbane ◽  
Md Ghulam Mustafa
Keyword(s):  
Survival Rate ◽  
Proximate Composition ◽  
Stocking Density ◽  
Culture Period ◽  
Recirculating Aquaculture System ◽  
High Density Culture ◽  
Crude Lipid ◽  
Recirculating Aquaculture ◽  
Aquaculture System ◽  
Growth Performances

Experiment was conducted to evaluate the high density culture of Mystus cavasius and its effects on growth performances, survival rate and proximate composition of the fish in recirculating aquaculture system. Fishes were cultured at 571, 714, 857 and 1000 fries/m3 as the initial stocking density. No significant differences (p > 0.05) were found in specific growth rate, average daily gain, food conversation ratio, protein efficiency ratio, condition factor (k) and survival rate (%) of fish under the culture period of 120 days among the different stocking densities. The average survival rate was ≥ 99% among the treatments at the end of the culture period. The moisture contents were between 77.10 and 77.75%, ash content was 2.58 and 2.61%, crude protein was 15.86 and 16.07%, crude lipid was 5.45 and 5.68% with no significant differences (p > 0.05) among the treatments. There were no significant variations in DO, TAN, NO3-N, NO2-N and pH among the treatments during culture. This study showed that stocking density of at least 1000 fries/m3 was the best option as the total gain was highest compared to other lower densities under similar facilities. Dhaka Univ. J. Biol. Sci. 29(2): 137-145, 2020 (July)

scholarly journals Comparative Study On Nursing Of Different Strains Of Tilapia (Oreochromis niloticus) In Bangladesh

2016 ◽  
Vol 5 (2) ◽  
pp. 98-106
Author(s):  
MA Hossain ◽  
MJ Islam ◽  
MM Uddin ◽  
MM Hossain ◽  
M Kunda
Keyword(s):  
Growth Rate ◽  
Body Weight ◽  
Survival Rate ◽  
Body Weight Gain ◽  
Stocking Density ◽  
Experimental Period ◽  
Mustard Oil ◽  
Feed Conversion ◽  
Different Strains ◽  
The Individual

This study was conducted to investigate and compare the growth performance of four Tilapia strains in hapa nursing with the aim to find out the best strain of tilapia. The research was conducted by four treatments with five replicates each. The tilapia fry were collected from, BFRI source from BFRI HQ, Mymensingh stocked in Treatment-1; unknown source from Hi-Tech Tilapia Hatchery Dagoanbhuiya, Feni in Treatment-2, Philipine strain from Green Field Tilapia Hatchery, Laxmipur in Treatment-3 and fry from Breeding Cohort, Sonar Bangla Hatchery, Bamna, Barguna in Treatment-4. The Individual stocking weight (g) of fry was average 0.01g. The fries were stocked in 12 hapa at same stocking density of 1200 fish/m2. Each of the hapa was 2m × 1m × 1m size and fixed in an earthen ponds. Supplementary feed with 31.29% of protein level consisting of rice bran (25%), mustard oil cake (15%), wheat flour (30%) and fish meal (30%) was given at the rate of 40% of their body weight per day manually, four times a day at the beginning of the experimental period and reduced to 25% of their body weight and continued up to harvesting period. The results showed that fry of Treatment-4 strain was the best strain and had significantly (p < 0.05) higher final mean body weight (FMBW), mean body weight gain (MBWG), specific growth rate (SGR) (9.75%), gross yield (GY) (2.13) and Net yield (NY) (2.12) than the Treatment-1 , Treatment-2 strains and Treatemnt-3 strain. Treatment-4 strain had the fastest growth rate, whereas the lowest performing strain was that from Treatment-2. We also analyzed survival rate of the fish from stocking to harvest, survival rate was highest in Treatment-4 strain (80%) where lowest is Treatment-3. Treatment-4 stain also showed the best feed conversion ratio (FCR) 1.62 than others. Considering the overall performance it can be concluded that tilapia strain collected from Breeding Cohort source is best among the four strains. However, further research may still be needed to compare more strains from different water body to evaluate the genetic potential for Tilapia.International Journal of Natural Sciences (2015), 5(2) 98-106

scholarly journals Nursery I: The effect of stocking density on the performance of glass eels, Anguilla bicolor in the biofloc system

2018 ◽  
Vol 47 ◽  
pp. 02009
Author(s):  
Purnama Sukardi ◽  
Norman Ari Prayogo ◽  
Tjahyo Winanto ◽  
Asrul Sahri Siregar ◽  
Taufan Harisam
Keyword(s):  
Water Quality ◽  
Weight Gain ◽  
Water Temperature ◽  
High Mortality ◽  
Crude Protein ◽  
Stocking Density ◽  
Crude Lipid ◽  
Central Java ◽  
Final Weight ◽  
Glass Eels

Glass eels of Anguilla bicolor is an expensive and still abundant commodity in Laguna Segara Anakan, Central Java, Indonesia. However, the growth of glass eels to elver is still a problem because of high mortality in nursery I and II. The objective of the study was to evaluate the result of stocking density on the performance of glass eels in the biofloc system during nursery I. Glass eels were stocked at densities of 54.95, 109.89 and 164.84 fish/m3, respectively, with three replicate ponds for each density. Eels were fed a formulated pasta-diet containing 40% crude protein and , 4% crude lipid, 5% crude fiber, 11.5% ash and 12% moisture, respectively. The water quality were maintained at levels of for fish culture througout the experiements: water temperature was 27.1°C (ranged from 26.3 to 28.2°C), pH (7.6, ranged from 6.8 to 7.8) and DO (7.2 mg.L-1, ranged 6.9 to 7.5 mg.L-1). The results showed that the stocking density did not significantly affect the final weight, weight gain, AGR, SGR, FCR and survival, however this had a significant effect on the yield. The biofloc system was suitable for raising glass eels.

Present Status of Therapeutic Apheresis in Japan: Survey Report

1998 ◽  
Vol 2 (3) ◽  
pp. 172-181 ◽  
Author(s):  
Masaru Shimizu ◽  
Hiroshi Tsuda ◽  
Tsutomu Sanaka ◽  
Koki Ide
Keyword(s):  
Present Status ◽  
Survey Report

New Oligidic Production Diet for Lygus hesperus Knight and L. lineolaris (Palisot de Beauvois)2,3

2000 ◽  
Vol 35 (3) ◽  
pp. 301-310 ◽  
Author(s):  
Allen Carson Cohen
Keyword(s):  
Egg Production ◽  
Feeding Habits ◽  
Lima Bean ◽  
Production Costs ◽  
Semisolid Slurry ◽  
Lygus Hesperus ◽  
Tarnished Plant Bug ◽  
Liquid Feeding ◽  
Bean Flour ◽  
The Cost

A new oligidic (undefined) diet for rearing Lygus hesperus Knight (Heteroptera: Miridae) and L. lineolaris (Palisot de Beauvois) is described. The diet (referred to as Nl diet) is a semisolid slurry that accommodates the solid-to-liquid feeding habits of Lygus spp. The Nl diet consists of an “entomophage component” (cooked, whole chicken eggs, chicken egg yolks, sugar, and yeast) combined with plant components (soy bean flour, wheat germ, lima bean meal, and soy lecithin). Biological fitness estimates for L. hesperus indicated that mean biomass production per cage, adult wet and dry weights, survival to the adult stage, and egg production were significantly greater for the Nl diet than for the existing standard, Debolt (1982) diet. The ingredients in the Nl diet cost about ⅛ those in the Debolt diet, and preparation requires less than ½ of the labor. The cost of diet for production per 1000 eggs was approximately $0.004 compared to $0.04 for an equal number of eggs from Debolt diet. Recent work, started after the currently reported bioassays with L. hesperus, indicates that the Nl diet also supports development and reproduction in the tarnished plant bug, L. lineolaris.This diet was used to rear and 15 generations of L. hesperus and is currently being used to support production colonies; it has also been used to rear L. lineolaris for 5 generations, thus far. The L. lineolaris colony started from field collected populations has been reared continuously and exclusively on the Nl diet and is currently in a log phase of population growth. This diet should be beneficial in providing a great reduction of Lygus production costs while producing a high quality, vigorously reproducing insect.

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