Method for cultivating new strain of meat type large-tailed han sheep

The technology of a new strain, Han sheep, is applied in the breeding field of new strains of large-tailed Han sheep for meat, which can solve the problems of unsound protection mechanism, weak breed preservation, inconvenient movement, etc., and achieve easy breeding, improved survival rate, and high-yield meat rate effect

Inactive Publication Date: 2012-07-04
HENAN UNIV OF SCI & TECH
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Problems solved by technology

[0003] In recent years, due to the large fat tail of Henan big-tailed Han sheep, which makes it difficult to move, it has been gradually improved by small-tailed Han sheep, and the number of purebreds has decreased year by year. Also, due to the lack of sound protection institutions for local breeds, the conservation of breeds is not effective

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Embodiment Construction

[0025] A method for cultivating a new breed of large-tailed Han sheep for meat, comprising the following steps:

[0026] Step 1. According to the Best Linear Unbiased Prediction (BLUP) method, select 900 excellent Henan big-tailed Han sheep ewes, 30 Suffolk rams and 45 Dorper rams to build the foundation respectively. group;

[0027] Selection criteria for Henan big-tailed Han sheep ewes: full white coat, medium head size, slightly broad forehead, roughly forward-hanging ears, raised nose bridge, strong physique, wide and deep chest, well-opened ribs, straight back and waist, hips Inclined, strong and powerful limbs, solid hooves, plump fat tail in the shape of a plantain fan, hairless on the inside, delicate skin, generally drooping below the hock, peach-shaped tail tip close to the tail groove, ewe suet tail weight less than 4.5kg, Ewes with a rectangular shape, larger body, more than 55kg in weight, high reproductive performance, and a lambing rate of more than 190%;

[0...

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Abstract

A method for cultivating a new strain of meat type large-tailed han sheep includes: using female Henan large-tailed han sheep as female parents and using male Suffolk sheep and male Dorper sheep as male parents; subjecting the female parents and the male parents to hybridization and crossing; and cultivating the new strain of meat type large-tailed han sheep according to phenotypic selection. Themethod is simple and high in meat production rate, meat is fresh and delicious, and the method is suitable for production of fat lambs. The new strain obtained by the method has phenotypic characteristics: physical tallness, average height being 80cm, and large chest width being 110cm averagely; straight back and waist, full hindquarter, strong limbs, and firm muscle; tail being above a hock; male lamb birth weight being larger than 4.5kg, 6-month-old lamb weight being larger than 40kg, and backfat thickness being smaller than 0.5cm; female lamb birth weight being larger than 4.3kg, 6-month-old lamb weight being larger than 36kg, and backfat thickness being smaller than 0.5cm; and female sheep lamping rate being larger than 190%.

Description

technical field [0001] The invention relates to a method for cultivating sheep strains, in particular to a method for cultivating new strains of large-tailed Han sheep for meat. Background technique [0002] The central production area of ​​Henan big-tailed Han sheep is in the Beiru River Basin of Pingdingshan City, distributed in some towns in Jia County and Baofeng County. Henan big-tailed Han sheep are rectangular in shape, strong in physique, large in size, wide and deep in chest, strong in limbs, and have the characteristics of strong adaptability, resistance to rough feeding, easy feeding, and strong disease resistance. Most of them are grazing and barn feeding Feeding method. Henan Big-tailed Han sheep has the following characteristics: First, it grows fast: the birth weight of male lambs is 3.72kg, and that of female lambs is 3.26kg. The average body weight is 51.48kg. Secondly, the performance of meat fat is good: because the fat accumulates in the tail, the carc...

Claims

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Application Information

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IPC IPC(8): A01K67/027
Inventor 白俊艳贾小平李元晓张小辉庞有志祁艳霞
Owner HENAN UNIV OF SCI & TECH
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