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GB/T 45552-2025: Technical specification for Bombyx mori genetic resource survey
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GB/T 45552-2025: Technical specification for Bombyx mori genetic resource survey

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National Standard of the People's Republic of China ICS 65.020.30CCS B 47 Technical Specifications for Investigation of Silkworm Genetic Resources 2025-04-25 Release 2025-11-01 Implementation State Administration for Market Regulation The National Standardization Administration issued

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents" Drafting is required. GB/T 45552 "Technical Specifications for Investigation of Silkworm Genetic Resources" and GB/T 27534 "Technical Specifications for Investigation of Livestock and Poultry Genetic Resources", GB/T 45553 The Technical Specifications for the Investigation of the Genetic Resources of Tussah Silkworm and GB/T 45550 Technical Specifications for the Investigation of the Genetic Resources of Honeybees together constitute the technical standards for the investigation of the genetic resources of livestock, bees and silkworms. The basis for genetic resource surveys. Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document was proposed by the Ministry of Agriculture and Rural Affairs of the People's Republic of China. This document is under the jurisdiction of the National Technical Committee on Animal Husbandry Standardization (SAC/TC 274). This document was drafted by. National Animal Husbandry Station, Sericulture Research Institute of Chinese Academy of Agricultural Sciences, Jiangsu University of Science and Technology, Southwest University, Guangxi Zhuang Autonomous Region Autonomous Region Sericulture Technology Extension Station, Zhejiang Academy of Agricultural Sciences, Sericulture Research Institute of Anhui Academy of Agricultural Sciences, Sericulture Research Institute of Sichuan Academy of Agricultural Sciences Institute (Institute of Special Economic Plants and Animals, Sichuan Academy of Agricultural Sciences), Guangdong Sericulture Technology Promotion Center, Shandong Guangtong Silkworm Seed Co., Ltd., Yunnan Academy of Agricultural Sciences Sericulture and Bee Research Institute, Hubei Academy of Agricultural Sciences Economic Crops Research Institute, Xinjiang Uygur Autonomous Region Sericulture Science Institute Development Center, Guangxi Zhuang Autonomous Region Animal Husbandry and Poultry Breeding Station. The main drafters of this document are. Han Xu, Shen Xingjia, Lu Cheng, Xue Ming, Cheng Wenqiang, Qian Heying, Zhao Qiaoling, Chen Tao, Wang Meixian, Li Gang, Zhang Youhong, Wang Yongqiang, Pan Zhixin, Huang Dehui, Li Linshan, Fang Dewen, Dong Zhanpeng, Zhu Juan, Wu Fan, Lu Hong, and Liu Ruixin. Technical Specifications for Investigation of Silkworm Genetic Resources

1 Scope

This document specifies the objects and methods of silkworm genetic resources survey, survey contents, and requirements for record and archive management. Check method. This document is applicable to the investigation of silkworm genetic resources.

2 Normative references

The contents of the following documents constitute the essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to This document. GB/T 9111 Test methods for dried silkworm cocoons NY/T 1093 Technical Specification for the Breeding of First Generation Hybrid Silkworms NY/T 1732 Methods for identification of silkworm varieties National List of Silkworm Genetic Resources Varieties

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 local variety A variety of silkworm that has been bred and passed down through long-term artificial and natural selection under natural conditions in a certain region of my country. 3.2 Improved variety Silkworm varieties bred through pure line separation, hybrid fixation, systematic selection and molecular breeding techniques and methods. 3.3 introduced variety Silkworm varieties introduced from abroad. 3.4 Monovoltine variety Under natural conditions in temperate zones, there is only one generation of silkworm species in a year. 3.5 Bivoltine variety A species of silkworm that produces two generations in one year under natural conditions in temperate zones. 3.6 polyvoltine variety A silkworm variety that produces three or more generations in a year under tropical or subtropical natural conditions. ...