scholarly journals Growth performance of genetically modified tilapia (Oreochromis niloticus) cultured in concrete pond

2015 ◽  
Vol 42 (2) ◽  
pp. 246-254
Author(s):  
S. O. Ayoola ◽  
A. O. Osibona ◽  
A. A. Idowu ◽  
B. T. Adesina
Keyword(s):  
Oreochromis Niloticus ◽  
Genetically Modified ◽  
Survival Rates ◽  
Fish Farming ◽  
Experimental Period ◽  
Quality Parameters ◽  
Fish Growth ◽  
Capital Investments ◽  
Mean Values ◽  
Concrete Pond

The semi-intensive culture of tilapia is particularly ideal in developing countries because it provides a wide variety of options in management and capital investments. A total of 1000 Genetically Modified Tilapia (GMT), Nile tilapia (Oreochromis niloticus) fry were stocked and reared in a concrete pond with a dimension of 1x1x5m for six months. The mean values of the water quality parameters during the rearing/experimental period were pH 7.25±0.31, temperature 25.85°C±2.98ºC; dissolve oxygen (DO) 4.166mg/L±0.55mg/L; Nitrate 9.44±1.91; Nitrite 40.99±1.38 and Ammonia 0.01. The fish specimens were fed twice a day (morning and evening) with coppens at three percent of their body weight and the parameters recorded were, 11.48 ± 5.4 8 MWG;177.6±122.9%MWG,204.6±19.2DRF:1.44±0.14WRF;6.14±0.57, MRF:0.67±0.38F CR:0.002±0.001 SGR, and 0.006±0.002 GEFC. The data indicated that mean weight gained (MWG) of Oreochromis niloticus increased gradually reaching its maximum. FCR values gradually decreased throughout the experiment which indicates that the lower the FCR the better it is for fish growth. The survival rates of the fish specimens during the experiment were 100 percent at different optimum temperatures, there was an increased trend in the growth with an increase in dietary protein level. It has been clearly verified from this experiment that all super male of Oreochromis niloticus grew better also in concrete pond. This result will promote the use of Genetically Modified Tilapia (GMT) in fish farming, because more weight are achieved and this will help to meet the goal of controlling tilapia prolific reproduction.

scholarly journals BROODSTOCK SEX RATIO IMPROVES FRY PRODUCTION IN NILE TILAPIA(OREOCHROMIS NILOTICUS) IN NORTHERN SENEGAL

2021 ◽  
Vol 9 (02) ◽  
pp. 72-76
Author(s):  
Mouhamadou Amadou Ly ◽  
◽  
Abdoulaye Ngom ◽  
Ahmadou Bamba Fall ◽  
Ousmane Diouf ◽  
...  
Keyword(s):  
Sex Ratio ◽  
Oreochromis Niloticus ◽  
Nile Tilapia ◽  
Sex Ratios ◽  
Survival Rates ◽  
Fish Farming ◽  
Commercial Diet ◽  
Ph Values ◽  
Nile Tilapia Oreochromis Niloticus ◽  
Female Survival

This present study was conducted to determine fry production in different male-female sex ratios of Oreochromis niloticusbroodstock in order to improve fry production, which handicapped the development of fish farming in northern Senegal. A total of 180 broodfish (47 males and 133 females) were stocked at a density of 2 fish /m2and was replicated three times for each sex ratio of 1:2, 1:3and 1:4 (male : female). Mean body weight ranges from 136.47±2.13 and 107.27±2.14 g for female and male O. niloticusbroodstock, respectively. The experiment was conducted for 90 days and the broods were fed on commercial diet containing 32% crude protein.Fish were held in 9 rectangular tanks of 30 m3 each (10 × 3 × 1) and half-filled. The results showed that number of fry produced at different sex ratios were significantly different, with sex ratio of 1:2 producing a highest number of fry (279.67) per female, followed by the 1:3and 1:4 treatment recorded the lowest.Broodstock sex ratios also did not affect female survival rates and all treatments had 100% survival rates. Temperature, dissolved oxygen and pH values obtained were suitable for good water quality and normal tilapia reproduction.In conclusion, the results of the present study recommend to stock Oreochromis niloticus brooders when stocked at a density of 2 fish /m2 at a sex ratio of 1 male : 2 female in order to obtain the highest fry production.

scholarly journals Effects of Stocking Density on Growth and Production of Silver Barb (Barbonymus gonionotus) in Pond

2017 ◽  
Vol 14 (2) ◽  
pp. 61-66
Author(s):  
Baadruzzoha Sarker ◽  
Mustafizur Rahman ◽  
Md Ruhul Amin
Keyword(s):  
Growth Parameters ◽  
Survival Rates ◽  
Stocking Density ◽  
Experimental Period ◽  
Water Area ◽  
Quality Parameters ◽  
Density Dependent ◽  
Weight Gains ◽  
Specific Growth Rates ◽  
Silver Barb

An experiment was carried out to study the density dependent growth of silver barb   (Barbonymus gonionotus) for a period of 2 months during14 March to 18 May, 2013 in ponds with individual water area of 2.0 decimal. The experiment was conducted with three treatments, replicated three times, where stocking densities were 50, 100 and 150 fish/decimal in T1, T2 and T3, respectively. Feeds were supplied twice daily throughout the study period. Sampling was done at weekly interval throughout the experimental period. Water quality parameters were monitored weekly. Temperature ranged from 26.40 to 30.13°C, transparency from 32.36 to 46.23 cm, dissolved oxygen from 4.80 to 5.83 mg/l and pH from 6.68 to 8.11. During the study period, growth parameters were analyzed. The mean weight gains were 52.48, 49.98 and 47.87 g, the percent weight gains were 2560.16, 2438.37 and 2335.12, the average daily weight gains were 0.82, 0.78 and 0.74 g, the specific growth rates were 5.12, 5.05 and 4.98%, the survival rates were 89.6, 86.67 and 82.11% in T1, T2, and T3, respectively. There were significant differences among T1, T2 and T3 for all the growth parameters. The total productions of silver barb were 603.85, 1114.00 and 1518.06 kg/ha/2 months in T1, T2 and T3, respectively. The present study indicates that the growth of silver barb was density dependent when grown in monoculture systems and the best stocking density for production was 150 fish/decimal. The Agriculturists 2016; 14(2) 61-66

scholarly journals Production and Economics of Gift Strain of Tilapia (Oreochromis niloticus) in Small Seasonal Ponds

2013 ◽  
Vol 19 (1) ◽  
pp. 97-104
Author(s):  
S Khan ◽  
MS Hossain ◽  
MM Hossain
Keyword(s):  
Oreochromis Niloticus ◽  
Survival Rates ◽  
Quality Parameters ◽  
Cost Ratio ◽  
University Campus ◽  
Benefit Cost Ratio ◽  
Seasonal Ponds ◽  
Supplementary Feed ◽  
Benefit Cost ◽  
Pellet Feed

The production and economics of GIFT strain of tilapia (Oreochromis niloticus) reared in nine seasonal small ponds at Bangladesh Agricultural University campus for a period of three months during August to October were evaluated. The experiment was arranged in three treatments (T) each with three replications. The ponds were drained, limed and fertilized with organic and inorganic fertilizers during preparation. After stocking the fishes the ponds were fertilized weekly with cowdung, urea and TSP. Supplementary feed was not given in T1, but rice bran and mustard oilcake were given in T2 and commercial pellet feed in T3. Some water quality parameters were monitored at regular intervals and they were within acceptable range for aquaculture. The survival rates were high (>95%) in all treatments. Significantly highest production (3941.50 kg/ha in three months) was found in T3 followed by T2 (1845.5 kg/ha) and T1 (972.50 kg/ha). Similarly, significantly highest net return (Tk. 61805.00/ha with benefit cost ratio of 1.45) was found in T3 followed by T2 (Tk.1339.00/ha with benefit cost ratio of 1.01) and T1 (Tk. 201.50/ha with benefit cost ratio of 1.00).DOI: http://dx.doi.org/10.3329/pa.v19i1.17360 Progress. Agric. 19(1): 97 - 104, 2008 

scholarly journals Optimization of stocking weight in carp polyculture ponds under drought prone Barind area of Bangladesh

2017 ◽  
Vol 5 (3) ◽  
pp. 519
Author(s):  
Mohammad Golam Sarowar Talukder ◽  
ABM Mohsin ◽  
Md. Akhtar Hossain ◽  
Md. Rafiqual Islam Khan
Keyword(s):  
Water Quality ◽  
Growth Parameters ◽  
Stocking Density ◽  
Quality Parameters ◽  
Fish Growth ◽  
Net Benefit ◽  
Mean Values ◽  
Growing Period ◽  
Quality Water ◽  
The Mean

Increased temperature, decreased water level and reduced culture period of the ponds are considered as major problems for aquaculture promotion in drought prone Barind area of Bangladesh. In order to address these problems, an experiment was conducted to optimize the stocking weight for carp polyculture ponds in Tanore upazila of Rajshahi district, Bangladesh. Three different stocking weights were tested under three treatments (T1: 25±0.12g; T2: 50± 0.15g; and T3: 100±0.19g), each with three replications. Fish growing period (July-December), carp species (C. catla, H. molitrix, A. nobilis, L. rohita and C. mrigala), stocking density (7,410 fishes/ha), lime and ash treatment, fertilization and feeding were same for all the treatments. Water quality (water temperature, dissolved oxygen, transparency, pH and alkalinity) and fish growth parameters were monitored monthly. Mean values of water quality parameters were found within the suitable range for fish culture. Treatment T3 varied more significantly (P<0.05) than that of other treatments for the mean values of final weight, weight gain, specific growth rate, survival rate and yield of fish. Net benefit of carp polyculture was also found significantly (P<0.05) highest with treatment T3.

scholarly journals Pemanfaatan ragi (Saccharomyces cerevisiae) pada formulasi pakan dalam meningkatkan pertumbuhan ikan Nila (Oreochromis niloticus)

2017 ◽  
Vol 5 (3) ◽  
Author(s):  
Bulfrit B. Rajagukguk ◽  
Cyska Lumenta ◽  
Jeffrie F. Mokolensang
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Oreochromis Niloticus ◽  
Nile Tilapia ◽  
Fish Growth ◽  
Control Fish ◽  
Fish Feed ◽  
Yeast Saccharomyces Cerevisiae ◽  
Feed Formulation ◽  
Experimental Fish ◽  
Concrete Pond

The purpose of this research was to determine the effect of yeast (Saccharomyces cerevisiae) with different composition of 5%, 10%, 15%, 20%, and without yeast in feed formulation on growth of tilapia (Oreochromis niloticus). The experimental fish used in this study had an average lengths of 2-3 cm  and weight of 1.0 g.  This research used cage measuring 100 x 100 x 100 cm3 that was placed in outdoor concrete pond of 3.5 x 5 m2.  Each cage filled with 10 fishes with three replication.  The dose given to the fish was 10% of the weight of biomass.  The fish was fed for three weeks, 3 times a day at 08.00 am, 12.00 pm, and 16.00 pm.. Research results showed that the greatest growth was achieved in fish treated 20% yeast and the lowest was observed in control fish (without yeast). Based on statistical analysis, all treatment displayed similar effect on all growth parameters.Keywords: Fish feed, Saccharomyces cerevisiae, yeast, Nile tilapia, fish growth

scholarly journals Production and economics of carp polyculture in ponds stocked with wild and hatchery produced seeds

2018 ◽  
Vol 6 (1) ◽  
pp. 541 ◽  
Author(s):  
Md. Rafiqual Islam Khan ◽  
Md. Taskin Parvez ◽  
Mohammad Golam Sarowar Talukder ◽  
Md. Akhtar Hossain ◽  
Md. Shamsul Karim
Keyword(s):  
Cost Benefit ◽  
Fish Farming ◽  
Quality Parameters ◽  
Catla Catla ◽  
Hypophthalmichthys Molitrix ◽  
Fish Yield ◽  
Mean Values ◽  
Cost Benefit Ratio ◽  
Total Fish ◽  
Different Sources

Lack of quality carp seeds is one of the major problems for fish production in Bangladesh. This experiment was conducted during July to December 2013 to study the production and economics of carp polyculture using wild and hatchery produced seeds in ponds in Faridpur district, Bangladesh.  Seeds of native major carps (NMCs) (Catla catla, Labeo rohita and Cirrhinus mrigala) and non-native carps (NNCs) (Hypophthalmichthys molitrix, Ctenophryngodon idella, Aristichthys nobilis and Cyprinus carpio) from four different sources were tested in feed and fertilizer based polyculture ponds under controlled mesocosm trials with four treatments (T1–T4), each with four replications. Combination, weight and density of the stocked species were same for all the treatments. Water quality parameters were monitored monthly and mean values were found within suitable range for fish farming. Mean final weight, weight gain, specific growth rate and yield of L. rohita, C. catla and C. mrigala were found significantly (P < 0.05) higher with treatment T1, T3 and T2 respectively. Treatments T1, T2 and T3 varied more significantly (P < 0.05) than treatment T4 for total fish yield and cost benefit ratio.  Polyculture of wild sourced NMCs and hatchery produced NNCs were found more profitable than aquaculture of hatchery produced NMCs and NNCs.

scholarly journals Diet and Feeding Habits of Cyprinus carpio in Relation with Water Quality of Integrated Rice-Fish Farming Ecosystem

Our Nature ◽  
2014 ◽  
Vol 11 (2) ◽  
pp. 138-151 ◽  
Author(s):  
Md. Mostafizur Rahman Mondol ◽  
Md. Mosaddequr Rahman ◽  
Dil Afroz Nahar ◽  
Ferdous Ahamed ◽  
Md. Al-Amin Sarker ◽  
...  
Keyword(s):  
Water Quality ◽  
Cyprinus Carpio ◽  
Quantitative Estimation ◽  
Feeding Habits ◽  
Fish Farming ◽  
Farming System ◽  
Quality Parameters ◽  
Fish Growth ◽  
Gut Contents ◽  
Rice Fish

This study describes the diets and feeding habits of Cyprinus carpio in integrated rice-fish farming system in the Agronomy Field Laboratory of Bangladesh Agricultural University, Mymensingh, Central Bangladesh during May 1999 to August 1999. Percentage of frequency of occurrence and percentage in number methods were applied for the qualitative and quantitative estimation of plankton. The water quality parameters recorded during the study were within the suitable range for optimal fish growth and plankton populations were also abundant in the water of the rice plots. The phytoplankton population recorded from the gut contents of C. carpio was under 4 groups (viz., Chlorophyceae, Euglenophyceae, Cyanophyceae, Bacillariophyceae) and the zooplankton under 3 groups (viz., Rotifera, Cladocera, Copepoda). Bacillariophyceae and Chlorophyceae were the dominant phytoplankton group while Rotifera was the dominant zooplankton group in the gut contents of C. carpio. This study also revealed that, gut contents of C. carpio was composed of 48.47% phytoplankton and 51.53% zooplankton indicating omnivorous nature of the fish. The availability of plankton population in the rice plots and the food and feeding habits of C. carpio suggest that, this fish could be a vital candidate for integrated rice-fish aquaculture.

scholarly journals Effects of Duckweed (Lemna minor) as Supplementary Feed on Monoculture of Gift Strain of Tilapia (Oreochromis niloticus)

2014 ◽  
Vol 18 (2) ◽  
pp. 183-188 ◽  
Author(s):  
MN Uddin ◽  
MS Rahman ◽  
M Shahjahan
Keyword(s):  
Oreochromis Niloticus ◽  
Lemna Minor ◽  
Survival Rates ◽  
Stocking Density ◽  
Experimental Period ◽  
Total Body Weight ◽  
Total Alkalinity ◽  
Fish Feed ◽  
Net Production ◽  
Supplementary Feed

An experiment was conducted for a period of 135 days on the effect of duckweed (Lemna minor) as supplementary feed on monoculture of GIFT strain of tilapia (Oreochromis niloticus). The experiment had two treatments, each with three replications. In treatment-1 ponds were supplied with duckweed as supplementary fish feed and in treatment-2 ponds were kept as control (without supply of duckweed). Ponds were stocked at a stocking density of 150 fingerlings per decimal. The ponds were fertilized fortnightly with poultry dropping at the rate of 5 kg/decimal, urea 60g/decimal and TSP 90g/decimal. Duckweeds were supplied to the ponds (treatment-1) at the rate of 60% of the total body weight (wet weight basis) of the fish. During the experimental period, the ranges of physico-chemical parameters viz, water temperature, transparency, dissolved oxygen, pH, total alkalinity, free CO2, PO4-P, and NO3-N were within the productive limit and more or less similar in all the ponds under treatments 1 and 2. There were 24 genera of phytoplankton under 5 major groups and 10 genera of zooplankton under 3 major groups were found in the experimental ponds. Mean survival rates in treatments 1 and 2 were 85.34% and 83.68% respectively. Specific growth rate (SGR, % per day) of the fish in treatments 1 and 2 were 1.90% and 1.60% respectively. Calculated net production of the fish in treatment-1 was 5.03 ton/ha/yr and in treatment-2 was 3.11 ton/ha/yr. By t test it was found that the net production of fish in treatment-1 was significantly (p<0.05) higher than that of treatment-2.DOI: http://dx.doi.org/10.3329/pa.v18i2.18201 Progress. Agric. 18(2): 183 - 188, 2007

scholarly journals Optimization of hormonal dose during masculinization of tilapia (Oreochromis niloticus) fry

2012 ◽  
Vol 9 (2) ◽  
pp. 359-364 ◽  
Author(s):  
Z Ferdous ◽  
MM Ali
Keyword(s):  
Weight Gain ◽  
Oreochromis Niloticus ◽  
Fish Growth ◽  
Daily Weight Gain ◽  
Optimum Dose ◽  
Trial Period ◽  
Growth Data ◽  
Average Daily Weight Gain ◽  
Male Population ◽  
Commercial Feed

The experiment was conducted to optimize the dose of 17?-methyl testosterone (MT) during masculinization of tilapia (Oreochromis niloticus) fry. Five treatments were designed with various doses of hormone to find out the most effective one. The treatments were designated as T1 (0 mg MT/kg), T2 (40 mg MT/kg), T3 (50 mg MT/kg), T4 (60 mg MT/kg) and T5 (70 mg MT/kg). MT was administered orally by using nursery feed and Ethanol (as hormone carrier solvents) diet to tilapia fry for 28 days in hapa. After completion of the trial period of 28 days nursing of the experimental fry was continued for further 2 months with commercial feed. At the end of experiment the sex ratio was      determined by examining gonad after dissecting the fish. Growth performance was monitored by recording the morphometric characteristics i.e. weight gain (g), average daily weight gain (g). The analysis of growth data showed significant variation in weight, % weight gain, SGR (% /day) of fish among the different treatments. SGR increases with the increase of hormone dose. The present study demonstrated that all MT receiving treatments showed a significantly (p<0.01) higher male proportion (94.28%) than control (48.57%). The dose of 60 mg MT/kg of feed resulted in maximum male population (94.28%). The result indicated that the optimum dose of MT hormone was 60 mg /kg with a feeding period of 28 days after hatching.   DOI: http://dx.doi.org/10.3329/jbau.v9i2.11052   J. Bangladesh Agril. Univ. 9(2): 359–364, 2011

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