Open AccessPartial Replacement of Fish Meal with Poultry By‐product Meal in Diets for Snakehead, Channa striata (Bloch, 1793), Fingerlings
Author(s) -
AbdulHalim Halimatun H.,
AliyuPaiko Mohammed,
Hashim Roshada
Publication year - 2014
Publication title -
journal of the world aquaculture society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.655
H-Index - 60
eISSN - 1749-7345
pISSN - 0893-8849
DOI - 10.1111/jwas.12112
Subject(s) - snakehead , biology , fish meal , zoology , meal , feed conversion ratio , fishery , fish <actinopterygii> , food science , body weight , endocrinology
A 12‐wk feeding trial was carried out to examine the response of snakehead, Channa striata , fingerlings to diets containing poultry by‐product meal ( PBM ) protein as replacement to fish meal ( FM ) protein. Fish (mean initial weight 3.98 ± 0.01) were reared in 15 tanks and fed one of five isocaloric (18.5 kJ /g gross energy) diets, in triplicates. Each diet was formulated to contain 45% crude protein and 6.5% crude fat and utilizing protein from PBM to replace that of defatted FM in the following decreasing order; 40, 30, 20, 10, and 0%, respectively. Fish were fed assigned diets to apparent satiation twice daily during the trial, for 12 wk. Water quality parameters (temperature, pH , and dissolved oxygen) were monitored and ranged between 28.5–30.5 C, 6.1–6.6, and 4.61–6.34 mg/L, respectively. Fish survival and growth performance were not significantly ( P < 0.05) different among all the treatments. Dietary PBM level did not significantly ( P > 0.05) affect the hepatosomatic ( HSI ) and viserosomatic indices ( VSI ) in fish and the carcass protein and ash compositions. Muscle lipid was significantly the highest in the 30PBM compared to 0PBM , 10PBM and 20PBM groups, but similar to the 40PBM treatment. The result of this trial indicates that protein from PBM could be used to successfully replace minimum 40% of defatted FM protein in diets for snakehead fingerlings without negative effects on growth and feed utilization.