A Study on the Improvement of Special Rearing of Young Silkworm for a Simple Cooperative Rearing

간이공동사육을 위한 치잠기 특수 사육방법 개선에 관한 연구

This study was carried out to observe the possibility of special rearing of young silkworm for a simple cooperative rearing in the indoor vinyl house. The results of this study are as follows. 1. Temperature and humidity were regulated reasonably in the indoor vinyl house in comparison with general rearing and covered rearing with damp-proof and all workings in it were more convenient. 2. Duration of silkworm life was same in the covered rearing with damp-proof and indoor vinyl house, but general rearing was longer spring rearing silkworm period, 5 hours and autumn young silkworm period. 6 hours than indoor vinyl house. 3. In the mortality ratio, missing larvae of general rearing was more than any other treatments in spring and autumn. There was no difference between covered rearing with damp-proof and indoor vinyl house rearing, but missing larvae seemed to be a little indoor vinyl house. 4. In the individual cocoon ratio there was no significance in spring and autumn, but best cocoon ratio was high in the special rearing and good and low cocoon ratio was high in the general rearing. 5. In the cocoon weight of 10,000 3rd moulted silkworm. cocoon weight of general rearing was less than any other treatments in spring rearing season, and that of covered rearing with damp-proof and indoor vinyl house rearing It was same result. 6. There was no significance in the cocoon layer ratio in spring and autumn, but that of covered rearing with damp-proof and indoor vinyl house was high in comparison with general rearing. 7. As showed above, it is considered that the rearing of indoor vinyl house is worth as special rearing of young silkworm for simple cooperative rearing because it showed good records with three times feedings a day in comparison with general rearing and covered rearing with damp-proof.

실내 vinyl house내에서 간이 공동사육을 위한 치잠기 특수사육의 가능성 여부를 구명하고자 실내 vinyl house육과 보습방건지육, 보통육을 비교시험을 한 결과는 다음과 같다. 1. 실내 vinyl house육은 보통육 및 방건지육에 비하여 온습도를 합리적으로 조절할 수 있었으며 모든 작업도 편리하였다. 2. 경과일시수는 실내 vinyl house육구와 보습방건지육에는 같았고 보통육구는 실험구에 비하여 춘잠치잠기에 5시간 추잠 치잠기에 6시간 길었다. 3. 감잠비율에 있어서는 춘추 공히 실내vinyl house육구와 보습방건지육구간에는 큰 차이는 없었지만 실내 vinyl house육구에서 감잠수가 약간 적었고 보통육구에서 높은 경향이었다. 4. 각견비율은 춘추 공히 유의성은 없었지만 특수육의 경우 상견비율이 높았고 보통육의 경우 중하견비율이 높은 경향이었다. 5. 대4령 기잠 1만두 수견량은 춘추잠기 공히 실내 vinyl house육구가 높은 경향이었다. 6. 견층비율은 춘추 공히 유의성은 없었지만 보통육구에 비하여 방건지육구와 실내 vinyl house 육구가 높은 경향이었다. 7. 상기의 시험결과를 종합 검사하면 실내 vinyl house육구는 대조구에 비하여 1일 3회 급상으로도 좋은 성적을 얻었으므로 간이 공동사육을 위한 치잠기특수사육장으로서 적합하다고 사료된다.