GB/T 45554-2025Specification for pig performance testing (English PDF)
种猪生产性能测定技术规范
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
April 25, 2025
Implementation date
November 1, 2025
Scope
GB/T 45554-2025 is the English-translated version of 种猪生产性能测定技术规范.
GB/T 45554-2025 is the Chinese national standard covering measuring what a breeding pig produces — the basic conditions for a central test station or an on-farm test, the measurement items and the target weight at which they are taken, the backfat thickness and eye muscle area read by ultrasound on the live animal, the methods and the rounding of the values, and the records and archives, because a phenotype recorded without its conditions cannot be compared between herds.
It applies to lean pigs, defined as a carcass lean meat percentage of not less than 55.0. First edition, under the Ministry of Agriculture and Rural Affairs. In force from 1 November 2025. Issued on 25 April 2025, it has been in force since 1 November 2025.
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Document preview — GB/T 45554-2025
National Standard of the People's Republic of China
- ICS
- 65.020.30
- Classification
- B 43
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 3.1 Lean pig
- 3.2 performance test
- 3.3 Center test stationtest
- 3.4 On-farm test
- 3.5 target weight targetweight
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.
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/TC274).
This document was drafted by: Huazhong Agricultural University, National Animal Husbandry Station, Yazhou Bay National Laboratory, China Agricultural University, Sun Yat-sen University, Guangdong Provincial Agricultural Technology Extension Center, Chongqing Academy of Animal Husbandry Sciences, Shandong Provincial Animal Husbandry Station, Wuhan COFCO Meat Products Co., Ltd.
The main drafters of this document are: Zhao Shuhong, Liu Wanghong, Qiu Xiaotian, Wu Zhenlong, Liu Xiaohong, Xie Shuihua, Wang Ketian, Liu Zhansheng, Hu Junyong, Wu Tingting, Ma Guojian.
Technical specification for measuring production performance of breeding pigs
1 Scope
This document specifies the basic conditions, measurement items, and record and archive requirements for measuring production performance of breeding pigs, and describes the measurement methods.
This document is applicable to the production performance measurement of lean pigs. Other economic types of pigs can refer to it.
2 Normative references
GB/T 8170
NY/T 820
NY/T 821
NY/T 825
NY/T 2241
NY/T 2894
3 Terms and definitions
The following terms and definitions apply to this document.
3.1 Lean pig
Pigs with a carcass lean meat percentage of not less than 55.0%.
3.2 performance test
The process of observing and measuring the phenotypic value of individual performance under certain conditions.
3.3 Center test stationtest
The breeding pigs from different sources are placed in a third-party testing site with consistent nutritional levels and environmental conditions to measure their specific weight stages.
The production performance phenotype value of the segment.
3.4 On-farm test
The tested individuals are placed in the same testing site with the same nutritional level and environmental conditions to be raised and their production performance at a specific stage is measured. Phenotypic values.
3.5 target weight targetweight
Weight dictated by breeding objectives.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 17 pages — is available in the English PDF.
Referenced standards
Normative references
- GB/T 8170Rules of rounding off for numerical values & expression and judgement of limiting values
- NY/T 820Technical specification for registration of breeding pig
- NY/T 821Technical regulation for determination of pork quality
- NY/T 825Technical regulation for testing of carcass traits in lean-type pig
- NY/T 2241Construction criterion for performance test station of breeding pig
- NY/T 2894Measurement of backfat depth and loin muscle area on living pig with B-mode ultrasound
Cited by
Editions of GB/T 45554
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB/T 45554-2025 | Specification for pig performance testing | current edition | Current |
This page sells the current edition, GB/T 45554-2025. Earlier editions are listed for reference only.
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Related Standards
GB/T 8170-1987 — Rules for rounding off of numerical values
GB/T 8170-2008 — Rules of rounding off for numerical values & expression and judgement of limiting values
NY/T 2241-2012 — Construction criterion for performance test station of breeding pig
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