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Evaluation of protein requirement of angel fish [Pterophyllum scalare (Lichtenstein)] larvae using defatted clam meat as the chief protein source
(Department of Aquaculture, College of Fisheries, Panangad, 2001) Deepa Viswanath, K; KAU; Mohan, M V
The effect of artificial diets with varying protein levels on the growth and survival of Angel fish, Pterophyllum scalare (Lichtenstein) larvae using defatted clam meat powder as the chief protein source was studied. One-day-old free-swimming hatchlings were used in the investigations done for a period of 21 days. The different diets used were with 24.91 %, 29.83%, 34.72%, 39.86%, 44.79%,49.85% and 54.63% protein levels with 3 replicates for each treatment. The results showed that the growth of larvae in terms of gain in length, gain in weight and specific growth rate was maximum for the diet with 44.79% protein level. From the relationship established between protein level and SGR, the optimum level of protein attaining maximum SGR (21.163) was found to be 53.099%. No significant difference was found in the survival rate of larvae fed with different diets. Thus artificial diet with 44.79% protein level can be used efficiently for rearing Angel fish larvae.