作者: Carl D. Webster , Daniel H. Yancey , James H. Tidwell
DOI: 10.1016/0044-8486(92)90408-D
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摘要: A 12-week feeding trial was conducted in aquaria with juvenile (6 g) blue catfish to examine effects of substituting soybean meal for fish a prepared diet. Four isonitrogenous (34% protein) and isocaloric (2.4 kcal digestible energy/g) diets were formulated contain 13, 9, 4, 0% menhaden (67% crude protein). Soybean (44% added increasing percentages (48, 55, 62, 69%) the respective diets. fifth diet, otherwise identical diet containing 69% meal, that had been heated at 105 ° C 60 min prior preparation. After 12 weeks, fed 13% significantly (P 0.05) body weights other four No significant differences > found percentage survival, food conversion ratio, protein efficiency ratio among Growth similar reported channel juveniles. However, these data suggest juveniles require least 34% optimal growth.