Breeding method of meat type sheep

A meat-type and sheep technology, applied in the field of meat-type sheep breeding, can solve problems such as slow genetic progress, and achieve the effects of good production performance, improved production performance, and improved meat yield.

Active Publication Date: 2019-11-22
贵州宏宇畜牧技术发展有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the genetic progress of this variety selection is relatively slow

Method used

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  • Breeding method of meat type sheep
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  • Breeding method of meat type sheep

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Example 1: Analysis of hybridization effect between different breeds of rams and Guizhou semi-fine wool ewes

[0036] Test group is to carry out selection breeding according to the method of the present invention; Control group 1 is to carry out selection breeding according to conventional method, wherein kind of ram is imported Corriere, and ewe is Guizhou semi-fine wool sheep; Control group 2 is to carry out selection breeding according to conventional method , where the ram is Texel, and the ewe is Guizhou semi-fine wool sheep; the test results are shown in Table 2.

[0037] Table 2 Hybridization effect analysis

[0038]

[0039] Note: Those marked with different lowercase letters after the data in the same column indicate that there is a significant difference between the two (P0.05).

Embodiment 2

[0040] Example 2: Research on reproductive hormones and histomorphology

[0041] The reproductive hormones of the hybrid F1 sheep of the present invention are studied, and the research results show that the hybrid F1 sheep has normal hormone regulation function. Measured the periodic changes of GHRP-Ghrelin, Androgen, LH, FSH, β-HCG, GH total 6 kinds of reproduction-related hormones, the results are shown in Table 3 and Table 4; the histomorphology of the hybrid F2 generation sheep testis development of the present invention is studied , the research results show that the F2 generation sheep have normal testicular histomorphological characteristics, and the results of testicular histomorphological characteristics are shown in Figure 1 to Figure 8 .

[0042] Table 3 The content of each hormone in different growth and development stages (ng / mL)

[0043]

[0044] Table 4 Correlation analysis between hormones

[0045] hormone GHRP-GHrelin Androgen LH FSH ...

Embodiment 3

[0047] Example 3: Research on quality traits

[0048] Determination of the apparent quality traits of the F1 generation and the F2 generation for two consecutive generations;

[0049] Through the observation of the apparent quality traits of F1 and F2 generations of wool, it is confirmed that the wool color, hair length, fineness and hair shape are consistent with Guizhou local semi-fine wool sheep, and that the hybrid sheep are similar to Guizhou local semi-fine wool. All the sheep have no horns, and it is confirmed that the offspring of hybrid sheep are consistent with Guizhou local semi-fine wool sheep and have no beard.

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Abstract

The invention discloses a breeding method of meat type sheep. The method includes the steps of hybridizing Guizhou semi-fine wool sheep as the female parent and Poll Dorset as the male parent throughan artificial insemination mode to obtain hybrid F1-generation lambs, selecting female breeding sheep to be left, hybridizing the female breeding sheep selected to be left in the step S1 as the femaleparent and Poll Dorset as the male parent through an artificial insemination mode to obtain hybrid F2-generation lambs, and selecting female breeding sheep and male breeding sheep to be left. The hybrid offspring has the germplasm characteristics and adaptability not greatly different from those of the Guizhou semi-fine wool sheep and is stable in sheep hereditary and good in body form, appearance, wool quality and productivity; compared with purely-bred Guizhou semi-fine wool sheep offspring, the bred meat type sheep has the advantages that the meat production rate is increased by 5% or above, the lambing percentage is increased by 5% or above and productivity is effectively improved.

Description

technical field [0001] The invention belongs to the technical field of animal breeding, and in particular relates to a method for breeding meat-type sheep. Background technique [0002] There are two ways to improve the quality of sheep breeds: one is the breeding of this breed, and the other is hybridization. When the production performance of a variety basically meets the production needs, the variety is generally selected for breeding. However, the genetic progress of this variety selection is relatively slow. When there are obvious defects in some aspects of the breed, which cannot be solved within the breed, it is necessary to import the blood source of the breed with superior performance. Guizhou semi-fine wool sheep is a breed of wool and meat sheep bred in Guizhou Province. The weight of adult rams can reach 60kg, and the weight of adult ewes can reach 40kg. The wool quality is deeply loved by the local wool consumer market, but the lambing rate and meat production...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K67/02
CPCA01K67/02
Inventor 陈浩林朱冠群韩勇毛凤显杨洋粟朝芝廖加法王德辉
Owner 贵州宏宇畜牧技术发展有限公司
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