Growth performance and survival of African catfish (Clarias gariepinus) fed on different diets (original) (raw)
Related papers
Aquaculture …, 2011
Problems of limited number of dry feeds as supplement or replacement of live feeds have led to poor larval nutrition in many species of fish. Therefore, the suitability of co-feeding 8-day-old African catfish (Clarias gariepinus) posthatch larvae using live feed (Artemia salina) and formulated dry diet containing freshwater atyid shrimp (Caridina nilotica) during weaning was investigated. The experiment ended after 21 days of culture and respective groups compared on the basis of growth performance, survival, feed utilization and nutrient utilization. Larvae co-fed using 50% Artemia and 50% formulated dry diet resulted in significantly (P < 0.05) better growth performance, food gain ratio (FGR), protein efficiency ratio (PER) and productive protein values (PPV) than other treatments. The lowest growth performance occurred in larvae weaned using 100% formulated and commercial dry diets. Better survival of over 90% was obtained in larvae weaned using 50% Artemia and 50% dry diet, while abrupt weaning using 100% dry diets resulted in lower survival (<75%). These results support a recommendation of co-feeding C. gariepinus larvae using a formulated dry diet containing C. nilotica and 50% live feed when weaning is performed after 8 days posthatching period.
Aquaculture Nutrition, 2010
Problems of limited number of dry feeds as supplement or replacement of live feeds have led to poor larval nutrition in many species of fish. Therefore, the suitability of co-feeding 8-day-old African catfish (Clarias gariepinus) posthatch larvae using live feed (Artemia salina) and formulated dry diet containing freshwater atyid shrimp (Caridina nilotica) during weaning was investigated. The experiment ended after 21 days of culture and respective groups compared on the basis of growth performance, survival, feed utilization and nutrient utilization. Larvae co-fed using 50%Artemia and 50% formulated dry diet resulted in significantly (P < 0.05) better growth performance, food gain ratio (FGR), protein efficiency ratio (PER) and productive protein values (PPV) than other treatments. The lowest growth performance occurred in larvae weaned using 100% formulated and commercial dry diets. Better survival of over 90% was obtained in larvae weaned using 50%Artemia and 50% dry diet, while abrupt weaning using 100% dry diets resulted in lower survival (<75%). These results support a recommendation of co-feeding C. gariepinus larvae using a formulated dry diet containing C. nilotica and 50% live feed when weaning is performed after 8 days posthatching period.
Zoologist (The), 2010
The study evaluates the growth performance and survival of hybrid African catfish larvae (Clarias gariepinus X. Heterobranchus bidorsalis) fed different diets: live Artemia nauplii, decapsulated Artemia cysts, live Ceriodaphnia sp and commercial dry diet (50% crude protein). Catfish larvae of mean weight 10.01±0.01mg of mean length 9.05±0.09mm were fed from the onset of exogenous feeding for 28days in plastic aquaria tanks (10L capacity each). At the end of the feeding trial, the highest weight gain, 889.99±5.00mg was recorded for the larvae fed with decapsulated Artemia cysts followed by those fed with live Ceriodaphnia with mean weight gain of 442.66 ± 2.24mg. The least weight gain 60.42 ± 1.80mg was obtained in larvae fed with commercial diet. The best and the least specific growth rates (SGR), 16.07 ± 0.02 and 6.97 ± 0.01 were also obtained in larvae fed decapsulated Artemia cysts and commercial diet respectively. Statistically, all the results of the growth parameters obtained from the different diets were significantly different (p<0.05). The highest survival, 92.67±2.31% was obtained for larvae fed with decapsulated Artemia cysts while the lowest survival of 33.33±7.02% was recorded for the larvae fed with commercial diet. These results show that though decapsulated Artemia cysts is the best diet for the first feeding of hybrid African catfish larvae, Ceriodaphnia is also a suitable diet for the first feeding of the larval fish.
This study aimed to compare the growth performance of African Catfish (Clarias gariepinus) on different standard feed. Post-fingerlings Clarias gariepinus with mean initial weight 5.50 ± 0.00 gram were fed with three commercial standard feeds which included T1 (Coppens), T2 (Vital) and T3 (Multifeed). The experiment lasted for twelve weeks with 180 individuals used and evenly distributed among the three treatments, with three replicates. The experiment was a completely randomized design and plastic aquaria with dimensions of (0.5 x 0.38 x 0.30 m) were used for the experiment. The fish were fed 5% of their body weight daily, acclimatized for seven days before commencement of feeding trial on the eighth day. Statistical data were analyzed using one-way analysis of variance and Duncan's multiple range tests to compare growth (length and weight), survival rate and water parameters (pH, Temperature, and Dissolved Oxygen). Proximate analysis of the standard feeds used was conducted, which showed a significant difference (P = 05) in macronutrient's composition. The end of the experiment shows that fish fed with Coppens performed better in final body weight (78.43 ± 1.29 g), followed by Multifeed (73.47 ± 0.05 g) while Vital recorded the least (60.43 ± 0.20 g). The water parameters (pH, Temperature, and Dissolved Oxygen) showed no significant difference (P ≠ 05) among the treatment groups. It is concluded that fish fed with Coppens recorded the overall best performance, followed by those fed with Multifeed while Vital recorded the least. This could be attributed to the nutritional composition of the various diet used.
Impact of Different Feeds on Growth of Catfish Clarias Batrachus (Gunther)
2014
In the present experiment highest survival rate was noted when fishes were fed with Tubifex followed by Artemia, mixed zooplanton and freeze dried tubifex. The survival rates obtained in the present study are comparable with those reported earlier for the same species (Fermin and Bolivar, 1991). Mortalities could be associated with the onset of air breathing (observed at day 9 in the present study) in catfish larvae (Haylor, 1992) and, to a lesser extent, the cannibalistic nature of the fish as influenced by size differences (Hecht and Appelbaum, 1987).
2019
Improved culture of the African catfish (Clarias gariepinus) is important to addressing the increasing demand for fish especially in the developing countries. Hence, the present study evaluated the growth performance, survival and feed conversion ratio (FCR) of C. gariepinus larvae fed with locally formulated diet of low crude protein. The treatments consisted of crude protein (CP) contents of 35%, 30%, 25% and control (28 %). The fish larvae (average weight, 0.03±0.01 g and length, 20.0±0.01 mm) were stocked in glass aquaria at 7 fish/L, and reared at room temperature for 6 weeks. The fish larvae were sampled weekly for length-weight measurements. Prior to sampling, Water analysis was done for temperature, ammonia (NH3) and pH. Fish larvae fed on the test diets exhibited significantly higher length and weight, specific growth rate (SGR), and survival than those fed with control diet (p < 0.005). Specifically, C. gariepinus larvae fed 35% CP diet exhibited better growth performan...
Growth Response of Clarias gariepinus (North African Catfish) Under Varying Feeding Rates
Sumerianz Journal of Biotechnology, 2020
In fish farming, feeding rate is an important factor affecting the growth of fish, and thus determining the optimal feeding rate is important to the success of any aquaculture operation. This study which lasted for 99 days investigated the effect of varying feeding rates on the growth response of African catfish, Clarias gariepinus fingerlings. One hundred and eighty fingerlings were randomly distributed into nine experimental tanks giving 20 fingerlings per tank with an initial weight of 5.92±0.006 g. Three feeding rates were employed as treatments-3%, 5%, and 7% of fresh body weight, with three replicates per treatment. The fishes were fed three times daily with commercial feed (Aller-aqua) of 42% crude protein. Growth and water quality parameters were measured fortnightly and feed ration adjusted according to the biomass in each tank. Results show that Final Mean Weight, Mean Weight Gain, Specific Growth Rate, Performance Index and Protein Efficiency Ratio were significantly higher (p<0.05) in fish fed 7%. However, Feed Conversion Ratio were better at 3% body weight (p<0.05). Based on the growth performance and feed efficiency data obtained, the study suggests the optimum feeding rate of 5% bw/day for African catfish, C. gariepinus fingerlings.
ISRN Zoology, 2012
African catfish Clarias gariepinus is cultured as food fish, used to control overpopulation in tilapia ponds, and is grown as baitfish for the Lake Victoria Nile Perch fishery. Since the demand for Clarias gariepinus fingerlings is high, many farmers wish to specialize in fingerling production. In this study, the performance of three dietary feed types: freshwater rotifers with Artemia nauplii, freshwater rotifers with fish meal, and freshwater rotifers with maize bran, on the growth performance of African catfish fry, were done in a hatchery and they were raised in 9 glass tanks for a period of 21 days. Pearson's correlation showed no relationship (r = 0.1; P > 0.05) between growth and water quality parameters, but indicated a strong relationship between survival rate and total length between treatments (r = 0.85; P = 0.02). Mean total length (TL) after 21 days were (A = 15.003), (B = 12.964), and (C = 11.90) in mm for Treatments A, B, and C, respectively. Treatment A had the highest specific growth rate (SGR) of 6.475% day 1 followed by B (5.5320% day −1 ) and C (4.960% day −1 ). Results from this study demonstrate that after the 7 days of feeding using rotifers, Artemia is the best feed for increasing growth of Clarias gariepinus.
2019
Original Research Article The study evaluated the effect of varying crude protein (CP) levels on the survival and growth performance of Clarias gariepinus reared in in hapas in earthen pond. The fish were stocked at the rate of 70 per 2 m by 2 m hapa net (0.5 mm mesh size) and fed on diets formulated from soybean, Caridina nilotica (Lake Victoria shrimps), cotton seedcake and wheat pollard. Vitamins and mineral supplements were incorporated at 1% each. Three groups of formulated diets of 35%, 30%, 25% CP and a commercial diet (28% CP control diet) with three replicates each, were fed to C. gariepinus with initial average weight of 3.0 ± 0.001 g and total length of 20 mm at an initial stocking density of 70 fish in a 2 m by 2 m hapa net. The hapas were placed in a 200 m 2 earthen pond. The study was evaluated in terms of the growth performance of weight, length, feed conversion ratio (FCR), feed conversion efficiency (FCE), and survival rates of Clarias gariepinus when fed on varying...
This Study was carried out in the Institute of Oceanography Fish Farm which is geographically located in the historic peninsula of the Great Kwa River. This study lasted for ten weeks and was carried out in 3 hapas (A 1 , A 2 , and A 3) measuring 1.5 x 1.0 x 1.0 m 3 in earthen pond. A total of sixty (60) fingerlings of Clarias gariepinus, mean bulk weight 0.20 ± 0.02 kg (10 g for each fingerling) were collected from the University of Calabar fish farm and stocked in each of the three experimental units (20 in each unit). The fishes were fed twice daily at 3%, 8% and 12% of their body weight. Some physicochemical parameters (Dissolved oxygen, pH, Ammonia and Temperature) of the water were measured weekly with a calibrated electronic meter. Mean temperature, pH and ammonium were found not to be affected by feed application rates during the ten weeks feeding trial. However, dissolved oxygen levels increased significantly with increasing feed application rate. The food values analyzed showed varied values of their presence in the body tissue of the fish analyzed; with the mean moisture, carbohydrate and protein recording higher value in that order; followed by ash, fat and fibre. The fish samples presented a relatively higher and lower amount of proximate concentrations. Growth performance and proximate composition of Clarias gariepinus show no significant differences among different feed application rates. The results suggest that, although a feeding rate of 12% gave the highest growth performance, Clarias gariepinus should be fed at the rate of 8% body weight per day, considering feed conversion efficiency, survival rate and growth response.