This standard specifies the characteristics of Neijiang pigs, the rules for pig grade assessment and the requirements for breeding. This standard is applicable to the identification of Neijiang pig breeds. GB 2418-2003 Neijiang pig GB2418-2003 standard download decompression password: www.bzxz.net

This standard is revised (H/Y2418—1981) and revised (H/Y2418—2003). Compared with the previous version, this standard mainly revised some descriptions and almost all indicators of the 1981 version, adopted the graded evaluation method of image straight rules instead of the percentage evaluation method, and added the corresponding "inspection method\" compared with GB/T2118-1981. The standard setting should be more scientific, advanced and reasonable, and more operable in the verification process. This standard was proposed by the Ministry of Agriculture of the People's Republic of China. Drafting units of this standard: Sichuan Provincial Animal Husbandry and Animal Husbandry Improvement Center, Sichuan Neijiang City Nanmu Old Product Bureau, Sichuan Neijiang City Seed The main drafters of this standard are Yun Hua, Lin Xiaowei, Pu Yangshuang, Shu Ronghu, and Yishou. This standard was published in 2011. This is the first revision. 1
1Fan Tian
This standard stipulates the characteristics of Neijiang hunting, the rules for the evaluation of breeding pig grades and the requirements for breeding. This standard is applicable to the assessment of Neijiang pig breeds. 2
Characteristics
2. 1 Characteristics
B2418—2003
Neijiang pigs have the following characteristics: they are produced in the central and eastern districts of Neijiang City, Sichuan Province, and are mainly distributed in some districts and counties of Neijiang, Miyang and other cities. 2.2 Appearance characteristics
Neijiang pigs are covered with dark brown and are large in size. The neck is thicker, the mouth is shorter, and the mouth is wide and has a long and narrow mouth. There are two types of mouths, which are medium-sized, drooping, with a wide and wide body, a long back, a straight back, a straight back, a complete back, a straight back, a strong back, and no external ties. , 5 pairs of nipples ~7,
2.3 Production performance
Boars are 148k5 and sows are 140k. The sows of the year (3 litters must be on) produced 11 piglets, 15.0 piglets 40g: pigs 20~5, 7 inside
42, rear weight 37,6~? Assist Shunhou 5
3 breeds of pigs were evaluated
3.1 The pigs were divided into grades
and the pigs were divided into grades according to the age of the month. Adults (30 months old or older) were evaluated and divided into grades 3.2 Body size
Table 1.
Table 1 Body size
is the light
3. 3 Reproductive performance
Species hunting safety level
3.3.1Species breeding load see Table 2.
Head length: m
Weight/kg
Body length/era
GR2418—2003
Three or more breeds
Fertility effect/head
Fertility survival effect/head
10-day-old actual weight/kg
Fertility effect /head
production breeding/head
production certificate effect/head
the performance of the breeding female cats must be determined according to the performance
3.3.2 The overall performance of the breeding boar: use its Beijing or Beijing female (more than 3 heads) or the purple breeding certificate of the female with multiple heads that have been strictly blocked as the basis for determination:
3.4 ​​Breeding commercial mirror
the mother port should have more than 3 people of the same generation or product, and the male must have at least one plate to mate with? The offspring of the actual pigs (two offspring for each sow> are used as the basis for fattening performance evaluation, Table 3, Table 3 Fattening performance
2090 increase/8
Wealth transformation
Breeding requirementsbzxZ.net
Genetic appearance conforms to the characteristics of the external glands of this breed,
4.2 External glands are normal. The breeding boars and single or hidden, sows, especially the new head, single defect. 4.3 The hair steaming of the purchased special agent is zero. 4.4
The external hunting system search data is complete. 4.5
Breeding pig grade evaluation boar one year pig "bad", 4.6
Healthy, especially the current epidemic diseases
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