Note
Production type diets were developed to support tank reared channel catfish, Ictalurus punctatus, until they were large enough to accept conventional pelleted feeds. Alternative ingredients to fishmeal were evaluated through a series of feeding trials using diets formulated by computer. Several animal and vegetable protein concentrates partially replaced fishmeal without significant reductions in growth or changes in carcass composition. Ingredients which supported especially good growth of fish included fish, poultry by-product, soybean and cottonseed meals; brewers yeast; wheat grain and beef tallow.