超细纤度蚕的农村生产试验

在永康农村进行了超细纤度蚕茧生产试验。结果显示，生产超细纤度蚕茧的三眠蚕诱导率99%以上，全龄经过约21.19 d，较普通四眠蚕缩短约5.56 d；全龄用桑量为普通四眠蚕的39.98%；折算后超细纤度三眠蚕的张种产茧量和产值，较全市普通四眠蚕的平均增幅分别达到10.19%和31.9%；超细纤度蚕茧的解舒率高、丝质优，可缫制6A级最高品位生丝；适时饷食用药以及准确掌握用药量，是确保蚕眠性转化的关键。超细纤度蚕茧生产不仅经济效益高，而且蚕作稳定及可缓和农业与养蚕的劳力矛盾。

Scale Production of Ultrafine Size Cocoon in Yongkang

Scale production of ultrafine size cocoon were developed in Yongkang sericulture area. The results indicated that the induction rate of ultrafine size trimolting silkworm were more than 99%. Duration for all instars of ultrafine size trimolting silkworm were 21.19 d, shortened about 5.56 d than the normal 4th molting silkworm. Amount of leaves for all instars of ultrafine size trimolting silkworm were 39.98% of the normal 4th molting silkworm. Converted yield and output value of ultrafine size trimolting silkworm increases 10.19% and 31.9% than the normal 4th molting silkworm respectively. Ultrafine size cocoon have good reelability and silk quality, can be reeled to 6A raw silk. The keys of ensuring high induction rate of ultrafine size trimolting silkworm were tim drug in optimum time and dosage. Production of ultrafine size cocoon have high economic benefits, and can ease labor conflicts.