GB/T 35568-2017 English PDF

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GB/T 35568-2017: Code of practice of type classification in Chinese Holstein
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 35568-2017	439	Add to Cart	5 days	Code of practice of type classification in Chinese Holstein	Valid

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Basic data

Standard ID: GB/T 35568-2017 (GB/T35568-2017)
Description (Translated English): Code of practice of type classification in Chinese Holstein
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: B43
Classification of International Standard: 65.020.30
Word Count Estimation: 22,234
Date of Issue: 2017-12-29
Date of Implementation: 2018-07-01
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China

GB/T 35568-2017: Code of practice of type classification in Chinese Holstein

---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.
Code of practice of type classification in Chinese Holstein ICS 65.020.30 B43 National Standards of People's Republic of China Chinese Holstein Body Identification Technical Regulations Published on.2017-12-29 2018-07-01 Implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Administration released

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard was proposed by the Ministry of Agriculture of the People's This standard is under the jurisdiction of the National Animal Husbandry Standardization Technical Committee (SAC/TC274). This standard was drafted by. China Agricultural University, China Dairy Association. The main drafters of this standard. Zhang Hao, Shi Wanhai, Zhang Shengli, Wang Yachun, Zeng Yifan, Cao Jingbao, Tian Yuze, Zhang Wenzhi, Cao Fucun, Shi Jian, Chen Shaoxi and Liu Lin. Chinese Holstein Body Identification Technical Regulations

1 Scope

This standard stipulates the basic requirements for the identification of Chinese Holstein cattle, the implementation of body shape appraisal, the method of body shape appraisal, and the linear assessment of various parts. The method for calculating the total score of functional points and body types, and the division of body type levels, etc. This standard applies to the identification of Chinese Holstein cows.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article Pieces. For undated references, the latest version (including all amendments) applies to this document. GB/T 3157-2008 Chinese Holstein

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 Body type identification Method for quantification of cow body size. For each size trait, determine the trait's Large values and minimum values are then scored on a linear scale. 3.2 Linear linearscore An integer from 1 to 9 is used to indicate the extent to which the physical performance of dairy cows changes from one extreme to the other. 3.3 Functional sub-functionalscore The linear score was converted to a score that reflects the ideal degree of physiological function of the cow. The range is 50 to 100. 3.4 Defective trait defectivetrait The appearance of body appearance defects with a low frequency in the population. Do not make linear scores, only for deduction points.

4 basic requirements

4.1 Identification of the basic conditions of cattle Healthy cows meeting the requirements of GB/T 3157 and having a milking days of 30 days to 180 days. 4.2 The basic conditions of the appraisers After the professional training of the cow's body type identification, it regularly participates in the identification and comparison between the appraisers and between the regions. ......

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