GB/T 40156-2021Meishan pig (English PDF)

Foreword

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

1 Scope

This standard specifies the breed source and characteristics, body appearance characteristics, adult body weight and body size, production performance, measurement methods and breeding use of Meishan pigs. basic requirements.

This standard applies to the identification of Meishan 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 Procedure

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

3 Variety sources and characteristics

The origin of Meishan pigs is the Taihu Basin of the alluvial plain of the Yangtze River Delta, and the central production areas are located in Taicang and Kunshan in Jiangsu Province and Jiading in Shanghai District etc. Meishan pig is a landrace of river and sea type, with high fecundity characteristics.

4 Body shape and appearance characteristics

The coat of Meishan pigs is mainly black, and the ends of the limbs are white, commonly known as "white on the four feet", and part of the snout, underside of the abdomen, or tip of the tail is white. Small size or medium. The head is medium in size, wrinkles on the forehead are a little or more, and the mouth tube is longer. The ears are large and drooping, and the tip of the ear is flush with the corner of the mouth or exceeds the corner of the mouth. Back waist concave, large and drooping abdomen, the skin on the abdomen is mostly purplish red. Stubby limbs. There are more than 8 pairs of nipples. See Appendix A for photos of Meishan pig breeds.

5 Adult weight and body size

See Table 1 for body weight and body measurements of adult Meishan pigs.