Abstract
This experiment was conducted to evaluate the reasonable rearing technique of Japanese oak silkworm under the different rearing condition as environment, feeding materials and rearing methods. The results are summerized as follows. The optimum temperature for the indoor rearing of Japanese oak silkworm was 25~26$^{\circ}C$ a in young silkworm and 22~23$^{\circ}C$ in grown silkworm, and generally in the condition of variable day/night temperature the growth of silkworm was faster than in that of constant temperature. The optimum relative humidity for it's growth was 80~90% at young silkworm stage and 60~70% at grown silkworm stage. The photoperiod was not affected to the growth of Japanese oak silkworm. The earlier brushing, the shorter the young silkworm stage, and the cocoon quality improved compared to the later brushing time. As a feeding materials aok (Auercus acutissima Crruthers) leaves were better than those of chestnut tree (Castanea Crenata Siebold & Zuccarini) and feeding value of cultivated oak tree leaves was better than that of natural oak tree leaves. The moving time when revealed the better cocoon production of Japanese oak silkworm from indoor condition to outdoor was 15 days after hatched, and the cocoon production was decreased by the earlier moving to outdoor.
천잠의 사육환경을 구명하기 위하여 사료자원, 기상환경 및 사육방법등에 관하여 조사한 결과를 다음과 같이 요약한다. 1. 천잠의 실내사육에 있어 사육온도는 항온보다 변온이 좋은 편이며, 치잠기 25~26$^{\circ}C$, 장잠기 22~23$^{\circ}C$ 범위가, 사육습도는 치잠기 80~90%, 장잠기 60~70% 범위가 적당한 것으로 나타났다. 2. 천잠사육에 있어 광조기는 유충의 성장에 미치는 영향이 크지 아니하였다. 3. 귀잠시기는 빠른것이 늦은 것보다 유충시기에 단축되는 경향이 있으며 질도 양호한 것으로 나타났다. 4. 사료수종은 상수리나무가 밤나무보다 더 적합한 것으로 나타났다. 야생수보다 재배수가 사육성육이 더 좋았다. 5. 천잠을 옥외사육으로 전환하는 시기는 빠를수럭 작황이 불안정해 지는 경향을 보였다.