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蚕品种的改良,基本上要经如下的程序:育种目标的制定、亲本素材的探索和导入、变异的扩大和优良形质的固定、对杂种强势利用的配合力的研究、品种的鉴定和推广.(一)育种目标的制定现在,蚕业界各方面对蚕品种的要求:蚕种业:原蚕强健,饲育和雌雄鉴别容易,蚕蛾交尾和产卵性能好,产卵多,孵化率高.用人工饲料也能顺利饲育和制种.养蚕农家:虫体强健,发育经过齐一,给桑量少而收茧量多,同宫茧少,出丝率高,稚蚕适于人工饲料饲养.制丝业:出丝率高,茧丝长,解舒好、小类、茧层练减少.
The improvement of silkworm varieties, basically through the following procedures: the development of breeding objectives, the exploration and introduction of the parent material, the expansion of variation and good shape of the fixed, the use of hybrid vigor research, identification and promotion of varieties (1) Establishment of Breeding Target Nowadays, the silkworm industry requires silkworm breeds in all aspects: silkworm seedling industry: the original silkworms are strong, breeding and male and female are easy to identify, silkworm moths have good mating and oviposition performance, many spawn, and high hatching rate With artificial feed can also be successfully breeding and seed production sericulture farmhouse: a healthy body, after development through a homogeneous, less amount of mulberry to accept the amount of cocoon, with less cocoon, a high rate of silkworms, young silkworms suitable for artificial Feed industry. Silk industry: a high rate of silk, silk long, relieve good, small class, cocoon layer training to reduce.