贵州农业科学2025，Vol.53Issue(5)：66-72,7.DOI:10.3969/j.issn.1001-3601.2025.05.009
秋制越年秋用蚕种的综合性状研究
Comprehensive Characters of Autumn-produced Overwintering Silkworm Eggs for Use in the Autumn
摘要
Abstract
[Objective]The comprehensive characteristics of autumn-produced overwintering silkworm eggs for use in autumn were studied,which provided theoretical basis for the safe preservation of silkworm eggs,regulation of supply and demand of stored silkworm eggs and safely maintaining successive generations of different silkworm varieties.[Method]From 2019 to 2022,46 silkworm varieties for use in autumn were used as research objects,then the three-stage refrigeration method was used to prepared the autumn-produced overwintering silkworm eggs for use in autumn,and the silkworm eggs produced in spring for use in the autumn were used as CK to investigate the indicators such as the hatching situation,the number of diseased young silkworms in the fourth instar stage,the healthy pupa rate,the cocooning rate,the weight of whole cocoon,the weight of the cocoon shell,the rate of cocoon shell,and the egg-laying amount of the female moths.[Result]The autumn rearing performance showed that except for the rate of cocoon shell,the hatching rate,the number of cocooning silkworms,cocooning rates,healthy pupa rates,whole cocoon weights,weight of cocoon shell and amount of laid eggs of autumn-produced overwintering silkworm eggs for use in autumn were lower than those of CK.32 of silkworm eggs produced in autumn for use in the autumn reached the tested hatching rate(accounting for 69.75％of total amount),7 silkworm varieties exhibited higher hatching rates than spring-produced eggs.4 varieties showed higher cocoon numbers,6 varieties achieved higher cocooning rates and 8 varieties demonstrated superior healthy pupa rates.Cocooning rate ≥85％observed in 11 varieties.Healthy pupa rate ≥80％achieved by 17 varieties.22 varieties outperformed spring-produced eggs in cocoon shell ratio.5 varieties exhibited higher egg yields than spring-produced eggs.[Conclusion]Except for the rate of cocoon shell,the hatching rate,the number of cocooning silkworms,cocooning rates,pupa rates,whole cocoon weights,weight of cocoon shell and amount of laid eggs of autumn-produced overwintering silkworm eggs for use in autumn were lower than those of silkworm eggs produced in spring for use in the autumn.From the perspectives of safely maintaining successive generations of silkworm genetic resources,regulating supply-demand balance of surplus silkworm eggs in storage,and reducing breeding generations of silkworm germplasm materials,the application of appropriate cold storage technologies for autumn-produced overwintering silkworm eggs for use in autumn demonstrates the feasibility.This approach not only delays varietal degeneration and reduce operational costs,but also effectively minimizes the waste of surplus silkworm eggs in storage.关键词
家蚕/秋制越年秋用蚕种/春制秋用蚕种/冷藏处理/茧层率/虫蛹率Key words
silkworm/autumn-produced overwintering silkworm eggs for use in autumn/spring-produced silkworm eggs for use in autumn/refrigeration treatment/the rate of cocoon shell/pupa rate分类
农业科技引用本文复制引用
刘彬斌,张智勇,胡春梅,卿圣环,粟思源,刘俊凤,张锦川,肖文福..秋制越年秋用蚕种的综合性状研究[J].贵州农业科学,2025,53(5):66-72,7.基金项目
国家现代农业科技体系四川蚕桑创新团队"特种蚕品种资源与遗传育种研究岗位"项目(sccxtd-2025-17) （sccxtd-2025-17）
川中北蚕桑产业集群创新体系建设(2024ZYD0306) （2024ZYD0306）
四川省农业科学院"1+9"揭榜挂帅科技攻关项目"水产(蚕)畜禽突破性新品种"(1+9KJGG004) （蚕）
