Survival Rates and Growth of Black Soldier Fly Larvae Reared on a Blend of Wheat Bran and Soy Pulp

In this study, we investigated the effects of a blend of wheat bran and soy pulp on the survival and growth of black soldier fly (BSF) larvae. Third-and fourth-instar BSF larvae were fed the same diet. The experimental groups were as follows: 200-g blend of wheat bran and soy pulp + 20 g third-instar BSF larvae (T1) and 200-g blend of wheat bran and soy pulp + 20 g fourth-instar BSF larvae (T2). Each experiment was performed in three replicates. The survival rate and growth of the fourth-instar BSF larvae were higher than those of third-instar BSF larvae. The higher growth of the fourth-instar BSF larvae might have resulted from consuming a large amount of a blend of wheat bran and soy pulp, which has a high protein content.