Biological and Physiological Effects of Some Honey Bee Products and Its Mixtures as Nutritional Additives on Two Strains of The Mulberry Silkworm Bombyx mori

摘要

The effect of some honey bee products; royal jelly (RJ lOmg/ml), pollen (P 50mg/100ml), propolis (PR 30mg/10Gml), honey (H lg/100ml) and their mixtures as food additives, on several biological and physiological parameters of the 5th larval instar of (S_1 and S_2) of the silkworm Bombyx mori were studied. The above mentioned products, either separately or in combination increased weights of mature larvae, pupae, fresh cocoons and cocoon shells. Larvae fed on mulberry leaves treated with RJ showed a significant increase in weights followed by H and then P in the broad strain. While in the local strain, RJ gave the maximum weights followed by P and then H. The same trend was observed in the total haemolymph protein and the CA surface area in both strains.