가잠의 각령경과 및 변태기에 있어서 지방함량의 측정

Fat and Oil Content Variation through Silkworm to moth

가) 잠체의 건물량 의잠에서 24％로 많았으나 식상을 하면서 점점 감소하였다가 숙잠기에 28.5％로 급격히 증가하며 화용에서 화아전까지는 근소하게 감소하다가 화아에서 약 32％로 증가하였다. 나) 잠체지방의 함량 대건물지방의 함량은 의잠에서 16.2％로 많았으나 잠아의 경과와 더불어 점점감소했다가 기잠에서부터 다시 증가하여 성식기에 그 령의 최고를 나타내며 숙잠에 이르면 급격히 증가하여 15.7％를 나타냈다. 다) 화용기를 보면 ♂ ♀ 모두 화용직전까지 급격히 증가하여 ♀ 23.5％ 웅 35.7％를 나타냈다가 ♀는 급격히 감소하여 화아기에 12％에서 26％로 급승하였고 웅에 있어서는 점점 약간씩 상승하였다가 화아전에 다시 약간 감소하여 36.5％인 것이 화아에서 42.5％를 나타냈다.

This work was carried out to investigate the relation between the fat content and the metamorphosis as the silkworms grew. The results obtained are as follows: 1. The content, of which the dry matter had been 24% at the stage of newly hatched silkworms, were gradually decreased by feeding on, but suddenly increased to the 28.5% at the mature stage. Those decreased slightly from pupation to just before the moths, and again increased to the 32% of the dry matter when became the moths. 2. The content, of which the fat had been 16.2%, however, decreased as the silkworms grew. The fat content increased little by little from the first feeding to the vigorous eating, but the matured worm contained only 15.7% of the fat. 3. The fat content of both male and female showed an increase to 23.5% and 35.7%, respectively. After that, the contents of it decreased to 12% and suddenly increased to 26% just before the moth in female. In male the content of fat showed a slight increase till before the moth, and after moth became, it were 42.5%.