GB/T 8130-2021Erhualian pig (English PDF)

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009.

This standard replaces GB/T 8130-2006 "Taihu Pig". Compared with GB/T 8130-2006, the main technical changes of this standard are as follows.

--- Deleted the entire content of "variety characteristics" (see Chapter 2 of the 2006 edition);

---Added "sources and characteristics of varieties", "physical appearance characteristics", "adult body weight and body size" (see Chapters 3, 4, and 5);

---Added "production performance", including "reproduction performance", "growth development", "finishing performance", "carcass traits" and "muscle quality" (see Chapter 6);

--- Deleted the "grade rating of breeding pigs" and "conditions for breeding pigs" (see Chapters 3 and 4 of the 2006 edition);

--- Added "Determination Method" and "Basic Requirements for Seed Use" (see Chapters 7 and 8);

---Added variety photos (see Appendix A).

1 Scope

This standard specifies the breed source and characteristics, body appearance characteristics, adult weight and body size, production performance, measurement methods and species of Erhualian pigs. Use basic requirements.

This standard applies to the identification of Erhualian pigs.

2 Normative references

The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this document. For undated reference documents, the latest version (including all amendments) is applicable to this document.

NY/T 820 Technical Specification for Breeding Pig Registration

NY/T 821 Technical Specification for Pork Quality Determination

NY/T 822 Breeding Pig Production Performance Determination Regulation

NY/T 825 Lean type pig carcass traits determination technical specifications

Regulations for the Quarantine of the Origin of Breeding Animals for Inter-provincial Transfers and Transportation of Dairy Animals

3 Variety sources and characteristics

The origin of Erhualian pig is the Taihu Lake Basin of the Yangtze River Delta Alluvial Plain, and the central production area is Zhenglu Town, Tianning District, Changzhou City, Jiangsu Province (formerly Wu (Jiaoxi Town, Jin District), Jiangyin City, Wuxi City, Changshu City and Xiangcheng District, Suzhou City. Erhualian pig is a river-sea type local breed with high fertility characteristic.

4 Body shape and appearance characteristics

The coat is light black, and the coat is thin, short and soft. The skin is thicker and more wrinkled, and some individuals have gray or purple-red skin on the bottom of their abdomen. Medium size, uniform structure Weighed. The head and forehead wrinkles are clear. The mouth tube is slightly longer and slightly concave, with 2 to 3 horizontal stripes. The ears droop over the lower jaw. The middle body is slightly longer, the back and waist are slightly concave, and the abdomen Large and drooping. More than 8 pairs of nipples. See Appendix A for photos of Erhualian pig breeds.

5 Adult weight and body size

Adult body weight and body measurements are shown in Table 1.