Breeding method and application of robust self-cocoon-emerging stripe double sex-limited marking domestic silkworm variety
A cultivation method and robust technology, applied in animal husbandry and other directions, can solve the problems of multi-sex determination efficiency, low production cost, and difficulty for silkworm moths to break out of their cocoons, and achieve the effect of improving comprehensive economic traits.
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[0047] (1) The Chinese silkworm variety "SLC-13", which is restricted to stripes, was used as the female parent, and the silkworm variety "932", which is currently used in production, was used as the male parent to obtain the Chinese stripe-limited variety "SLC-14"; The Japanese silkworm variety "SLJ-01" limited to stripes was used as the female parent, and the silkworm variety "7532" currently used for production in Japan was used as the male parent to obtain the stripe-limited variety "SLJ-02"; the obtained "SLC-14" The F1-F5 generations of "SLJ-02" were mixed with 0.5g of ants, and the F6 generation was bred with a single moth. The close relatives 932 and 7532 with limited markings, cocoon shape and cocoon color, and good comprehensive economic traits were selected. Or keep the seeds in the moth area for subsequent generations, and through 17 generations of directional cultivation, the new silkworm skin spot-limited varieties "SLC-14" and "SLJ-02" have been bred. The variet...
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