Individual Difference in the Cocoon Quality of Female and Male Silkworm, Bombyx mori

가잠견의 견질에 있어서 자웅간의 개체차이에 관하여

In order to investigate the individual difference in the cocoon quality of female and male silkworm, Bombyx mori, the individual variation of cocoon quality of all the examined population, the variation of cocoon quality within batches. The variation of batches were also examined with 19 batches (843 cocoons of female and 806 of male) of lam 111 X Jam 112, and the daily variation of cocoon quality after harvesting on 300 good cocoons of female and male is as follows：(table omitted) 2. The daily variation of cocoon quality after harvesting. The daily reduction rate of cocoon weight after havesting was higher at the late stage than at the beginning stage of pupal duration and it showed a tendency to be higher in male than in female pupae.

가잠견의 실용형질에 있어서 자웅간의 개체차이를 알기 위하여 잠 111$\times$잠 112의 19아구 (자견 843과, 웅견 806과)에 대하여 각 시양형질별로 견질의 개체변이, 동 아구내변이 및 동 아구간변이를 조사하였고, 정적 자웅 각 300과에 대한 일변화를 조사한 결과는 다음과 같다. 1. 견질의 변이 2. 견질의 일변화 전견중의 감모율은 용기의 초기보다 말기에 컸으며 그 경향은 자견보다 웅견이 더 컸다.