Studies on the modified dark incubation

암최청에 대한 연구

It is very important physiological and economical problems to hatching within a day by increasing hatching-ratio of silkworm eggs in sericulture, and modified dark incubating method was experimented in Japan. The author studied on the economical problems of that rather than physiological study. Hatching was induced and accelerated by illumination before hatching 5 days which incubated in the dark room after eye spot pigmented eggs emerged 10-20 percentage. It was increased by 80-90％ in hatching-ratio, but the hatching was delayed a day. In autumn silkworm, newly hatched silkworms were hatched silkworms were hatched in the dark room because of high temperature period tough modified dark incubation was passed only 4 days. The author wonder which is more effective between effect of increasing the hatching-ratio and the health of silkworms.

암최청을 요약하면 대략 다음과 같다. 1. 춘잠기에는 암최청이 소잠율을 높인다. 따라서 일제소잠이 가능하며, 그 비율은 80-90％를 상회하지만 소잠이 일일간 연기된다. 2. 추잠기의 암최청은 효과는 다소 있으나 암환경에서 이미 의잠이 부화하므로 추잠기 이야포의 결과를 가져오니 하추잠기에는 암최청을 하지 않는 것이 생리적이라고 고찰한다.