Breeding method of artificial-feed-adaptive silkworm variety

Abstract

The invention discloses a breeding method of an artificial-feed-adaptive silkworm variety. The breeding method includes: breeding is respectively performed on Chinese-system silkworms and Japanese-system silkworms of existing silkworm varieties, 3 kinds of feed is used to perform adaptive selection on the silkworms of each generation for three times, the first 5 generations of silkworms use moth area hybrid breeding to perform individual selection, single-moth breeding is performed after the fifth generation of silkworms, the breeding is performed by combining the moth area and individual selection, the spring generation, the summer generation and the autumn generation are bred in each year, more than 12 generations of silkworms are selected continuously, and the obtained Chinese-system artificial-feed-adaptive silkworms and the obtained Japanese-system artificial-feed-adaptive silkworms are hybridized to obtain a hybridized variety, namely the artificial-feed-adaptive silkworm variety. The breeding method has the advantages that the artificial feed feeding habits of two hybridization lines can be increased evidently, the feeding habits of the hybridized variety can be improved, line rebuilding is not needed, and high breeding efficiency is achieved; the bred silkworms are high in vitality, good in cocoon silk quality and character and good in silkworm egg production attachingperformance.

Description

technical field [0001] The invention relates to the technical field of silkworm breeding, in particular to a method for breeding silkworm varieties with artificial feed adaptability. Background technique [0002] my country's sericulture industry has a long history. At present, planting mulberry and sericulture is still a pillar industry in many rural areas, especially in the process of rural revitalization and targeted poverty alleviation. It has a very important position and role. Silkworm artificial feed breeding is an epoch-making technological innovation in sericulture and a symbol of sericulture modernization. Sericulture with artificial feed has revolutionized the traditional production mode of "planting mulberry first, then raising silkworms", freeing sericulture production from the restrictions of seasons and natural conditions, enabling continuous sericulture throughout the year, which is conducive to the realization of mechanization and industrialization. It has ...

AI Technical Summary

Problems solved by technology

However, at present, the promotion rate of artificial feed sericulture technology in my country is extremely low in production, and its main restrictive factor is the lack of artificial feed adaptability silkworm species

Although some researchers used the 24h hair thinning rate after harvesting ants as an index to carry out successive generations of continuous selection, and obtained silkworm strains with significantly improved food intake for artificial diets, but the selection effect was poor and the breeding efficiency was low, and silkworms that were not really adapted to artificial diets were bred. Variety

There are many reasons why my country lacks artificial feed to breed adaptive silkworm varieties, but one important reason is that the breeding methods of artificial feed adaptive varieties used in the past are improper, the selection effect is poor, and the breeding efficiency is low

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