家蠶 人工飼料에 對한 系統別 攝食性에 關한 硏究

Studies on the Feeding Response of the Strains to the Artificial Diet in the Silkworm, Bombyx mori

This experiment was carried out to find out the feeding response of 82 varieties being preserved to artificial diet, and its relation to the moulting and growth of the young larvae. The results obtained are as follows. 1. There are differences of the feeding response among varieties and strains. The feeding response to the artificial diet becomes better in order of Japanese, European and Chinese strains. 2. Highly positive correlations were found between the feeding response, and moulting ratio and growth at 1st, 2nd instars. Excellent feeding response to the artificial diet made the larvae moulting well and growing uniformly. On the other hand, there was no correlation between the weights of lst moulted larvae and 1st moulting ratio. 3. Groupings could be attempted by the differences of the feeding response to the artificial diet. These groupings can be applied for the silkworm breeding.