Replacement of Fish Meal by Inclusion of Alternative Protein Sources in a Diet for Juvenile Red Sea Bream, Pagrus major.

概要

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The replacement of fish meal (FM) by inclusion of soybean meal (SBM), corn gluten meal (CGM) and poultry by-product meal (PBM) in juvenile red sea bream, Pagrus major diet was investigated. Juvenile fish weighing 8.3 g on average were fed for 60 days with the test diets: (1)0-39%SBM, (2)24%SBM and 10-20%CGM, (3)24%SBM and 13-26%PBM, (4)24%SBM, 10-20%CGM and 13-26%PBM. Palatability of test diets were not affected by the dietary treatment at all. The growth performance was not affected by dietary inclusion of up to 39%SBM (replacing of 50%FM). The best performance was observed in fish fed the diet containing 24%SBM and 13%PBM (replacing 50%FM). The per-formance of the diets containing 24%SBM and 10%CGM with or without 13%PBM (replacing of 50% and 70%FM) were similar to that of the control diet which contained 50%FM. Feed conversion of these dietary groups were similar to or slightly lower than that of the control group. The performance, however, became significantly poorer with further increase of CGM or PBM content in diet. These results indicated that 50%FM in juvenile red sea bream diet could be replaced by inclusion of either 24%SBM and 10%CGM or 24%SBM and 13%PBM. In addition, 70%FM could be replaced by inclusion of these three alternative protein sources without amino acid supplementation.
日本水産増殖学会の論文