Selective breeding method for improving meat performance of black goats of Guizhou

A black goat, performance technology, applied in animal husbandry, etc., can solve the problem of low meat production performance

Inactive Publication Date: 2013-07-17
GUIZHOU INST OF ANIMAL HUSBANDRY & VETERINARY
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Problems solved by technology

However, the meat production performance of Guizhou black goats i

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  • Selective breeding method for improving meat performance of black goats of Guizhou
  • Selective breeding method for improving meat performance of black goats of Guizhou
  • Selective breeding method for improving meat performance of black goats of Guizhou

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Embodiment Construction

[0025] The following combination figure 1 and specific embodiments, the present invention is described in detail.

[0026] A. Guizhou black goats (1-3 years old) weighing more than 30kg are used as female parents, and adult Lezhi black goats and Boer goats weighing more than 50kg are used as male parents. There are 480 basic ewes, 8 high-quality Lezhi black goat rams, and 8 high-quality Boer goat rams. The male and female rams were artificially inseminated with the diluted semen of Lezhi black goat rams to produce hybrid F1 lambs by adopting ram effect synchronous estrus. The offspring of hybrids were subcultured, with one generation every 10 months, and each generation adopted 5 times to gradually select the remaining breeding sheep.

[0027] Selection and retention of breeding ewes

[0028] The first selection and retention: when the lamb is born, the lamb weighs more than 2kg at birth.

[0029] The second selection: when the lamb is weaned at the age of 3 months, the we...

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Abstract

The invention discloses a selective breeding method for improving meat performance of black goats of Guizhou. The selective breeding method includes the steps of: A, utilizing black goats of Guizhou as female parents, and utilizing adult black goats of Lezhi and adult goats of Boer as male parents; B, hybridizing the adult goats of Boer as the male parents with breeding ewes selected and remained in a generation F1 in an artificial insemination manner, and selecting and remaining breeding ewes from obtained lambs in generation F2 according to the same selecting and remaining method used for the generation F1; C, hybridizing other high-quality black goats of Lezhi as the male parents with the breeding ewes selected and remained in the generation F2 in an artificial insemination manner, and selecting and remaining breeding ewes from obtained lambs in generation F3 according to the same selecting and remaining method used for the generation F1; and D, subjecting breeding rams selected and remained in the generations F1-F3 and breeding ewes selected and remained in the generation F3 in an artificial insemination manner to intersect-breeding. By the selective breeding method, weight of six-month and one-year-old black goats of Guizhou is remarkably increased, and original dressing percentage of the one-year-old ewes is increased from 47.4% to 49.2%.

Description

technical field [0001] The invention relates to the Guizhou black goat breeding technology, in particular to a breeding method for improving the meat production performance of the Guizhou black goat. Background technique [0002] Guizhou black goats are mainly produced in Liupanshui, Guizhou Province, and have been listed in the list of local fine breeds protected in Guizhou Province. It has the characteristics of pure black coat, excellent meat quality, large body size, good gregariousness, wide feed intake, walking ability and strong stress resistance. However, the meat production performance of Guizhou black goats is relatively low, and the average weight of 6-month-old goats is 19.95kg / goat. The slaughter rate was 47.39%. In the developed countries of the sheep industry, the degree of mutton sheep breeding is generally high, and the production of fat lambs has formed a large-scale, specialized and intensive industry. For example, lamb meat in the United States account...

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Application Information

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IPC IPC(8): A01K67/027
Inventor 陈浩林杨红文李洪曙
Owner GUIZHOU INST OF ANIMAL HUSBANDRY & VETERINARY
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