Performance, Yield, and Body Composition of Fingerling Channel Catfish Fed a Dried Waste Egg Product

Abstract

Abstract Fingerling channel catfish (Ictalurus punctatus) were fed diets for 85 d in which 50 and 100% of the fish meal and fish oil had been replaced with a spray-dried waste egg product. There were no significant differences (P > 0.05) among the fish fed the five diets in weight gain, final length, percent mortality, feed conversion, or proximate composition, though fish fed the egg diets tended to have lower moisture and higher fat values than fish fed the control diet. The fish fed the 100% replacement diets had significantly more (P < 0.05) body cavity fat than fish fed the 50% replacement diets; both groups had more body cavity fat than the control. No biotin deficiency symptoms were observed in the fish.