浴消方法和饲育形式对天蚕结茧率的影响

Effect of Washng and Disinfection Method and Rearing Types on Cocooning Rate of Antheraea yamamai Guenee

试验结果表明：天蚕卵面消毒液的浓度和浸渍时间直接影响孵化率。以０．４％的有效氯漂白粉液浸渍５ｍｉｎ区的孵化率最高，４日孵化率达９５．０５％，比０．８％５ｍｉｎ区和０．４％１０ｍｉｎ区分别提高１９．０８％和２．５３％。饲育形式不同，减蚕率和结茧率悬殊很大，以小蚕室内塑料袋育、大蚕室外覆网育的减蚕率最低，为２５％，结茧率最高，为７５／。

The soaking duration and the concentration of the disinfectaut solution onthe surface oi the Antheraea yamamai Guenee eggs affected the hatching rate directly.Thesurface area which treated with bleaching powder liquid containing 0.4%available chlorinefor five minutes had the highet hatching tate-the four-day hatching rate rached95.05%,lmproved by 1 9.08% and 2.53% comparing to the surface area treated with 0.8%,5min and 0.4%,10min。 respectively. Different type of rearing caused much differ-ence in the missing silkworm rate and cococning rate,and indoor plastic bag enclosed rearingof young silkworms and outdoor net covered rearing of grown silkworms led to the lowestratp of missing silkworms(25%)and the highest cocooning ratc(75%)。