Survival and Growth Rate of Clarias gariepinus Larvae Fed with Artemia salina and Inert Diet (original) (raw)
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IRJET-Survival and Growth Rate of Clarias gariepinus Larvae Fed with Artemia salina and Inert Diet
The growth and survival of Clarias gariepinus larvae (0.42mg) fed Artemia salina (D1), inert diet (egg white + fish meal) (D2) and a combination of both diets (D3) was investigated for 42 days. Each diet was feed to 80 post yolk-sac fry, in triplicate plastic tanks holding 40L of water. The specific growth rate, survival, percentage weight gain, mean weight gain and performance index were investigated. The percentage weight gain and specific growth rate were not significantly different (P>0.05) for the various diets, while the final mean weight, survival and performance index of the larvae fed D1, D2 and D3 were significantly different (P<0.05) from each other.The highest specific growth rate (14.86 g/day), final weight (4.39g) and survival (60.42%) were recorded in fish fed D3 while the least growth was recorded in fish fed D2 with specific growth rate of 11.88g/day, final weight of 0.993g and survival of 30.42%. The result indicated that there was an increase in body weight among diets types; the mean was 0.731g for larvae fed D3, 0.421g for larvae fed D1 and 0.165g for larvae fed D2. The performance index for Clarias gariepinus larvae fed D3 was the highest (6.3) followed by D1 (2.51) and then D2 (0.714). It was therefore recommended that Clarias gariepinus larvae be fed with a combination of the inert diet and Artemia salina to achieve better growth performance and higher survival rate.
Journal of Applied Biology & Biotechnology, 2017
Clarias gariepinus culture remains undeveloped in Côte d'Ivoire due to the lack of locally quality feed, fingerlings, and the high cost of imported feed Artemia salina. Because of the importance of feed and feeding strategy in fish fingerling production, beef brain meal was investigated as alternative compounded feed. Feeding trial was completed with five isonitrogenous diets at 35% crude protein formulated by substituting Artemia salina for beef brain (BB) meal on the basis of crude protein at 0% (Control diet), 25% (BB25), 50% (BB50), 75% (BB75) and 100% (BB100) level. Catfish, Clarias gariepinus larvae with an average weight of 0.006 ± 0.001 g were fed with experiment diets in three replicate groups, three times a day (07:00, 12:00 and 17:00 hours) ad libitum 49 days. At the end of rearing period, highest values of growth parameters were recorded from larvae fed with BB100, BB75, and BB50. Beef brain meal increased the dietary total fat when the feed conversion ratio decreased. Fish fed diets BB25 and BB50 recorded the highest values of survival rate. Studies on the best feeding rates and water quality monitoring should be carried out to improve survival of Clarias gariepinus larvae fed with high level of beef brain meal in diet.
International Journal of Environment, Agriculture and Biotechnology, 2018
Artemia salina, the main first-feeding protein source of the catfish Clarias gariepinus larvae is relatively scarce and very expensive in Côte d'Ivoire and it raises the cost of catfish fingerlings production. To reduce the feed cost, feeding trial was completed with five isonitrogenous (35%) diets formulated by substituting artemia protein in control diet by soya protein at 25% (SB25), 50% (SB50), 75% (SB75) and 100% (SB100) level. Clarias gariepinus larvae initial body weight 0.0064 ± 0.001 g were stocked at 1 larvae L-1 and fed with the experimental diets three times daily ad libitum for 49 days. At the end of the growth trial, diets SB25 and SB50 present similar growth with the control diet. The low growth recorded from fish fed SB75 and SB100 highly affected final biomass despite the best survival rate recorded. Best values of feed conversion ratio were recorded from larvae fed control diet followed by SB25, SB50. High levels of soya proteins in diets affect feed palatability and larvae growth, vigour, motility and reactivity. Compounded feeds SB25 and SB50 can be used us low cost Clarias gariepinus larvae diets without adverse effects on growth and survival compared of artemia control diet.
Continental J. Biological Sciences, 2018
The growth performance and feed utilization studies were carried out on Clarias gariepinus fry using live food and artificially formulated diet for 12 weeks in plastic tanks. The fish were fed with diet A (Daphnia spp), B (Artemia nauplii) and C (40% Crude protein formulated diet) at 5% of their body weight. Each dietary treatment was replicated twice with 20 fry per replicate. Percentage Weight Gain (PWG), Mean Growth Rate (MGR), Specific Growth Rate (SGR) and Food Conversion Ratio (FCR) were calculated. Data were subjected to One-way analysis of variance (ANOVA) at p=0.05.The highest growth rate was recorded in the group fed on diet C, with an average percentage weight gain of 66.89%, followed by fry fed on diet A, with an average percentage weight gain of 42.10% and the least percentage weight gain was recorded in fry fed on diet B with average percentage weight gain of 40.63%. The best food conversion ratio was in fry fed diet C, with FCR of 2.01, follow by fry fed diet A, with FCR of 3.17 and then those fed on diet B, with FCR of 3.54. The mean growth rate and specific growth rate was highest in fry fed on diet C, with MGR and SGR of 2.1284g and 3.4311%/day respectively, followed by fry fed on diet A with MGR and SGR of 1.6687g and 2.0689%/day respectively. The least MGR and SGR were recorded from fry fed on diet B, with MGR and SGR of 1.6294g and 1.9933%/day respectively. The study revealed that Daphnia can be used to replace Artemia in the diet of Clarias geriepinus fry, provided that effort is being made to ensure all year round culture and rich culture medium that will allow the Daphnia to be nutritionally rich and complete for optimal growth and development of catfish fry. Abstract The growth performance and feed utilization studies were carried out on Clarias gariepinus fry using live food and artificially formulated diet for 12 weeks in plastic tanks. The fish were fed with diet A (Daphnia spp), B (Artemia nauplii) and C (40% Crude protein formulated diet) at 5% of their body weight. Each dietary treatment was replicated twice with 20 fry per replicate. Percentage Weight Gain (PWG), Mean Growth Rate (MGR), Specific Growth Rate (SGR) and Food Conversion Ratio (FCR) were calculated. Data were subjected to One-way analysis of variance (ANOVA) at p=0.05.The highest growth rate was recorded in the group fed on diet C, with an average percentage weight gain of 66.89%, followed by fry fed on diet A, with an average percentage weight gain of 42.10% and the least percentage weight gain was recorded in fry fed on diet B with average percentage weight gain of 40.63%. The best food conversion ratio was in fry fed diet C, with FCR of 2.01, follow by fry fed diet A, with FCR of 3.17 and then those fed on diet B, with FCR of 3.54. The mean growth rate and specific growth rate was highest in fry fed on diet C, with MGR and SGR of 2.1284g and 3.4311%/day respectively, followed by fry fed on diet A with MGR and SGR of 1.6687g and 2.0689%/day respectively. The least MGR and SGR were recorded from fry fed on diet B, with MGR and SGR of 1.6294g and 1.9933%/day respectively. The study revealed that Daphnia can be used to replace Artemia in the diet of Clarias geriepinus fry, provided that effort is being made to ensure all year round culture and rich culture medium that will allow the Daphnia to be nutritionally rich and complete for optimal growth and development of catfish fry.
The study examined the growth performance, hematological and digestive enzymes of Clarias gariepinus juveniles fed Cirina forda meal (CFM) based diets in the laboratory for a period of 10weeks. Five iso-nitrogenous (30%) experimental diets were formulated at various levels of CFM inclusion levels of 0% (control), 10%, 20%, 30%, 40% and 50%, designated as diets Q, A10, B20, C30, D40 and E50 respectively. Fish fed the CFM based diets showed mean weight gain (MWG), specific growth rate (SGR) and protein efficiency ratio (PER) comparable to the control diet. There was significant differences in the digestive enzyme activities of the fish as the CFM level in the experimental diets increased. Protease and maltase activities significantly increased, with diet C30 recording the highest maltase activity (4.37) while the cellulase and glucanase activities of the fish significantly (P<0.05) reduced. There was no significant difference (P>0.05) between the PCV and RBC of the blood of the fish fed the various diets. Highest RBC (2.75 x10 6 /µL) was obtained in fish fed the control diet while the lowest (2.55 x10 6 /µL) was recorded in the fish fed diet E50. The White Blood Cell count and the Neutrophils of the fish fed the trial diets were not significantly higher (P>0.05) than those of the fish fed the control diets. From the results of this experiment, it is concluded that up to 50% inclusion level of Cirina forda meal in the diet of Clarias gariepinus was tolerable for good growth and physiological well-being of the fish.
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.
A B S T R A C T Commercial (Multifeed) diets were fed to Clarias gariepinus fry earlier weaned from decapsulated Artemia and dried mixed-cultured zooplankton at (3% and 5%) feeding rates each for 21 days, to assess fry survival and growth on the two feeding rate. Dietary treatments were in triplicate, in a completely randomized design. Fry were randomly distributed into 12 aerated, 30litres plastic tanks at a stocking rate of 30 fry per tank. The best percent survival (40.00±31.80) which was not statistically (P>0.05) significant from other treatments was in the fry fed commercial feed at 3% feeding rate, which were weaned on zooplankton. Specific growth rate was not significantly (P>0.05) different but higher (6.37±0.91) in the fry fed commercial feed at 5% feeding rate, earlier fed Artemia at 5% feeding rate. FCR, GFCE, and FE of fry fed commercial feed at 3% feeding rate, which were earlier fed zooplankton, were the best with no significant (P>0.05) differences among the four treatments. The study revealed that the fry earlier fed decapsulated Artemia and those fed dried mixed cultured freshwater zooplankton could be weaned on commercial feed at 3% and 5% feeding rates, with no significant (P<0.05) difference on the fry growth, survival and feed conversion.
Journal of the World Aquaculture Society, 1993
A comparative study of larval growth in the different species of the genus Clarias in different regions revealed that in spite of strong differences in egg and larval size, the growth potential was quite similar. Differences in growth between species and regions were strongly correlated with the applied feeding strategy, the applied growth parameter and period of measuring. To evaluate feeding strategies, standardized procedures for measuring growth are needed. Recalculating the results of the mentioned study according to these standardized procedures revealed that both in India and Indonesia, the growth rate of C. buarruchus larvae was too low. This is probably due to low feeding levels in India and premature weaning in Indonesia.
International Aquatic Research
To completely replace the fish meal by a mixture of earthworm and maggot meals, experimental diets were tested during 42 days on Clarias gariepinus fingerlings. Five isoproteic and isoenergetic diets (40 % crude protein and 17.9 ± 0.3 kJ g-1) including the control diet (D1) based on fish meal, were formulated. All these diets satisfied the essential amino acids requirements of C. gariepinus fingerlings. These diets were tested on triplicate groups of 50 fishes (initial body weight: 3 ± 0.1 g) bred in tank (0.5 m 3). The approximate ratios 2:5; 1:4; 1:12 and 0:1 between the earthworm meal and the maggot meal were used, respectively, to formulate four diets D2, D3, D4 and D5 without fish meal. After the feeding period, significant differences (P \ 0.05) were observed on growth, feed utilization between control diet (D1) and test diets (D2-D5). Fish fed earthworm-and maggot-based diets were grown better than those fed the control diet. Survival and feed utilization were not significantly affected by the ratio between earthworm meal and maggot meal in the test diets. Lipid content was higher in carcass and fillet of fishes fed earthworm-and maggot meals-based diets than that of those fed fish meal-based diet. This study indicates that when the ratio 2:5 between the earthworm meal and the maggot meal is used to entirely replace fish meal and the ratio lysine/arginine of the diet is inferior to 1, the growth performances and feed utilization of Clarias gariepinus fingerlings are improved.