Growth Performance, Length-Weight Relationship, Body Condition and Carcass Composition of Cyprinus carpio Fed with Poultry Dropping Incorporated Diets

Abstract

Fifty fingerlings of common carp, Cyprinus carpio were stocked in each of four rectangular tanks. The formulated fish feed comprised of deoiled groundnut cake, rice polish, poultry dropping and vitamin-mineral feed supplement. The fishes in the tank T1 were fed with control diet D1 (0% poultry dropping) and the fishes in tanks T2, T3 and T4 were fed with test diets D2 (10% poultry dropping), D3 (15% poultry dropping) and D4 (20% poultry dropping), respectively. All diets contained around 30% protein. The fishes were fed @ 5% of total body weight/day in two equal installments, one in the forenoon and other in late afternoon. Fishes were sampled fortnightly. Water quality parameters were monitored regularly. Highest specific growth rate (0.26%/day) was recorded in tank T2 where fishes were fed with 10% poultry dropping incorporated diet. The experimental fishes recorded the value of exponent 'n' in the range of 3.37 to 3.57, coefficient of correlation 'r' in the range of 0.9938 to 0.9987 and coefficient of determination 'r2' from 0.9876 to 0.9974. More than 98% of experimental fishes departed from cube law of length-weight relationship towards higher side. The Condition Factor 'K' from 1.94 to 2.0 of experimental fishes indicated the well being and good condition of fishes. The analysis of muscle composition of fishes revealed that the protein content in muscle increased with the increasing amount of incorporated poultry dropping in fish feed.