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GB/T 26938-2023: Code of practice for in vivo embryo production and transfer in cattle
Status: Valid GB/T 26938: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 26938-2023 | English | 459 |
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Code of practice for in vivo embryo production and transfer in cattle
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GB/T 26938-2023
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| GB/T 26938-2011 | English | 439 |
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Standard for production technology of bovine embryo
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GB/T 26938-2011
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PDF similar to GB/T 26938-2023
Basic data | Standard ID | GB/T 26938-2023 (GB/T26938-2023) | | Description (Translated English) | Code of practice for in vivo embryo production and transfer in cattle | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | B43 | | Classification of International Standard | 65.020.30 | | Word Count Estimation | 24,234 | | Date of Issue | 2023-05-23 | | Date of Implementation | 2023-12-01 | | Older Standard (superseded by this standard) | GB/T 26938-2011 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 26938-2023: Code of practice for in vivo embryo production and transfer in cattle---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS65:020:30
CCSB43
National Standards of People's Republic of China
Replacing GB/T 26938-2011
Technical regulations for embryo production and transplantation in bovine
Released on 2023-05-23
2023-12-01 implementation
State Administration for Market Regulation
Released by the National Standardization Management Committee
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:
This document replaces GB/T 26938-2011 "Technical Regulations for Bovine Embryo Production": Compared with GB/T 26938-2011, except for structural adjustments
In addition to editorial changes, the main technical changes are as follows:
--- Added the term "receptor" (see 3:1:2);
--- Added abbreviations (see 3:2);
--- Increased technical process (see Chapter 4);
--- Changed the selection of donors (see 5:1, 4:1 of the:2011 edition);
--- Changed the feeding management of the donor (see 5:2, 4:2 of the:2011 edition);
---Changed the estrus synchronous treatment of the donor (see 6:1:1, 5:1:1 of the:2011 edition);
---Changed the superovulation method (see 6:1:2, 5:1:2 of the:2011 edition);
--- Changed the donor estrus identification (see 6:1:3, 5:1:4 of the:2011 edition);
--- Change breeding to artificial insemination (see 6:2, 5:2 of the:2011 edition);
--- Added site conditions (see 7:1);
---Changed non-surgical embryo collection (see 7:2, 6:1 of the:2011 edition);
--- Changed the selection of embryos and embryo quality identification (see 7:3, 7:4, 6:2 of the:2011 edition);
--- Increased embryo washing (see 7:5);
--- Changed the freezing and preservation of embryos, and added thawing of embryos (see Chapter 8, Chapter 7 of the:2011 edition);
--- Added embryo transfer and pregnancy test (see Chapter 9);
--- Increased verification method (see Chapter 10);
---Changed the main instruments required for non-surgical embryo collection (see A:4 in Appendix A, A:3 in Appendix A of the:2011 edition):
Please note that some contents of this document may refer to patents: The issuing agency of this document assumes no 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 Animal Husbandry Standardization Technical Committee (SAC/TC274):
This document was drafted by: Beijing Institute of Animal Husbandry and Veterinary Medicine, Chinese Academy of Agricultural Sciences, Dairy Center of Beijing Shounong Animal Husbandry Development Co:, Ltd:, Shan
East Oaks Animal Husbandry Seed Industry Co:, Ltd:, Inner Mongolia Saikexing Livestock Breeding and Breeding Biotechnology Research Institute Co:, Ltd:, National Animal Husbandry General Station,
Shijiazhuang Tianquan Fine Breed Cow Co:, Ltd:
The main drafters of this document: Zhu Huabin, Zhao Shanjiang, Li Jingqian, Gao Yundong, Ma Zhu, Li Xihe, Li Shujing, Wang Yanping, Sun Wei, Yu Wenli,
Duan Longfei, Zhang Jiancong:
The release status of previous versions of this document and the documents it replaces are as follows:
---First published as GB/T 26938-2011 in:2011;
--- This is the first revision:
Technical regulations for embryo production and transplantation in bovine
1 Scope
This document establishes the technical process of bovine embryo production and transplantation, specifies the selection and feeding management of donors, the superovulation and
Artificial insemination, non-surgical embryo collection and embryo quality identification, embryo cryopreservation and thawing, embryo transfer and pregnancy inspection technical operations
As required, the verification method is described:
This document is applicable to the technical operation of ordinary bovine embryo production and transplantation:
2 Normative references
The contents of the following documents constitute the essential provisions of this document through normative references in the text: Among them, dated references
For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to
this document:
GB 4143 Bovine frozen semen
GB/T 5458 Liquid nitrogen biological container
GB/T 25881 Bovine Embryo
GB/T 31582 Bovine sex-controlled frozen semen
NY/T 1335 Cattle Artificial Insemination Technical Regulations
3 Terms, Definitions and Abbreviations
3:1 Terms and Definitions
The following terms and definitions apply to this document:
3:1:1
Donor
A cow used to produce embryos:
3:1:2
receptor recipient
Cows for embryo transfer:
3:2 Abbreviations
The following abbreviations apply to this document:
FSH: follicle-stimulating hormone (folicle-stimulatinghormone)
4 Technical process
In vivo embryo production and transplantation techniques in cattle include donor selection and feeding management, donor superovulation and artificial insemination, non-surgical embryo
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