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Method for breeding black pigs by using excellent germplasm resources

A black pig and germplasm technology, applied in chemical instruments and methods, applications, mixers, etc., can solve the problems of excessive feed, low lean meat rate, slow growth of finishing pigs, etc., and achieve the effect of optimizing quality

Active Publication Date: 2022-06-28
JILIN ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Dongbei Min pig is a North China pig breed. Its advantages are firm meat, evenly distributed marbling, bright red meat color, delicate and juicy taste, complete color and fragrance, not only the litter size High, strong disease resistance, resistant to livestock feeding, and as a germplasm resource, Dongbei Min pig itself has advantages that many other pig breeds do not have, such as good meat quality, strong cold resistance and excellent reproductive performance, but, compared with other pig breeds Compared with the dominant pig breeds, the disadvantages are also quite obvious, such as slower growth of fattening pigs, more feed consumption per unit of weight gain, low lean meat percentage, thick skin, etc.

Method used

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  • Method for breeding black pigs by using excellent germplasm resources
  • Method for breeding black pigs by using excellent germplasm resources
  • Method for breeding black pigs by using excellent germplasm resources

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Effect test

Embodiment 1

[0036] Please refer to figure 1 , in the present embodiment, a method for cultivating black pigs using excellent germplasm resources is proposed, including forming a male parent Berkshire pig base group of 100 (more than 5 bloodlines), a female parent Northeast Minzhu basic group (5 250 pigs of the above bloodlines), the growth performance such as the farrowing rate, survival rate, daily gain, feed-to-weight ratio, and slaughter performance such as eye muscle area of ​​the sows in the core group were measured. The male pig is the male parent (A), and the Northeast Min pig sow is the female parent (B), that is, A×B crosses the two breeds to breed the New Jilin Black Pig.

[0037] The male parent's main selection traits are determined as growth and fattening traits, and the female parent's emphasis is on reproductive performance.

[0038] Berkshire pigs should select excellent individual sibs with intramuscular fat higher than 2.5%, lean meat rate of 60.0% or more, daily weight...

Embodiment 2

[0041] In this embodiment, a device for cultivating black pigs by utilizing superior germplasm resources is proposed, which includes a feed bucket 2 and a plurality of feeding boards 1 arranged around the feed bucket 2, and the plurality of feeding boards 1 are boards for accommodating feed A plurality of feeding boards 1 are rotatably installed on the feed bucket 2, and a lift assembly 4 is arranged in the feed bucket 2. The lift assembly 4 includes a mounting bracket installed on the port on the feed bucket 2 and a lifting column slidably installed in the mounting bracket. 41. There are a plurality of traction ropes 3 on the lifting column 41. The number of traction ropes 3 is equal to the number of the plurality of feeding plates 1. The two ends of the plurality of traction ropes 3 are respectively connected with the lifting column 41 and the feeding plate 1. When the lifting column 41 ascends or descends relative to the mounting frame, the plurality of feeding boards 1 are ...

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Abstract

The invention provides a method for breeding black pigs by using excellent germplasm resources, and relates to the field of high-quality black pig breeding, which comprises the following breeding steps: purification and rejuvenation of breeding pigs, crossbreeding and fixation of hybrid offspring, breeding and propagation of a core group, and breeding by using Berkshire boars as male parents and Northeast Min pig sows as female parents. According to the method, Berkshire boars and northeast Min pig sows are subjected to two-variety hybridization, the new Jilin black pigs are bred, and in the breeding process, the quality of the new Jilin black pigs is optimized by rejuvenating the quality of the Berkshire boars and the northeast Min pig sows and combining breeding modes such as hybrid offspring cross fixation and core group breeding and expanding propagation.

Description

technical field [0001] The invention relates to the field of high-quality black pig cultivation, in particular to a method for cultivating black pigs by using excellent germplasm resources. Background technique [0002] Northeast Min pig is a North China pig breed. Its advantages are solid meat quality, even distribution of marble patterns, bright red meat color, delicate and juicy taste, and complete color and aroma. It not only has high litter size, strong disease resistance, and animal feeding resistance, but also serves as a germplasm. Resources, the Northeast Min pig itself has advantages that many other pig breeds do not have, such as good meat quality, strong cold resistance and excellent reproductive performance, but compared with other dominant pig breeds, the disadvantages are also quite obvious, such as fattening pigs Slow growth, more feed consumption per unit weight gain, low lean meat rate, thick skin, etc. [0003] Berkshire pig is one of the world's famous p...

Claims

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Application Information

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IPC IPC(8): A01K67/02A01K5/00A01K5/02B01F31/44B01F31/441
CPCA01K67/02A01K5/004A01K5/02
Inventor 李兆华钱芙蓉张志彬李娜于永生刘庆雨高一张琪马永强姜中国黄艳丽王永贵刘向华王玉珍刘丽敏高敬昕田淑玲李峰梅淑芝陈丽慧于海欣赵立忠魏启立王建超张煜宁苑广青陈丽艳邵梅赵喆张柏松宫哲刘德智
Owner JILIN ACAD OF AGRI SCI