Crossbreeding method for Tan sheep and Dorper sheep

A technology of Tan sheep and hybrids, applied in the field of Tan sheep hybrid breeding, can solve the problems of multiple economic benefits, small size of Tan sheep, long breeding cycle, etc., and achieve the effects of fast growth, strong environmental adaptability, and improved conception rate.

Inactive Publication Date: 2020-03-06
宁夏宁羴源牛羊肉有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, there are many deficiencies in the breeding process of Tan sheep. For example, Tan sheep are small in size, have a long breeding cycle, and are difficult to obtain more economic benefits.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A cross-breeding method of Tan sheep and Dorper sheep, comprising the following steps:

[0032] a. Crossbreed with Tan sheep as the female parent and Dorper sheep as the male parent, and perform artificial insemination to obtain F1 hybrids. By injecting prostenol into the ewes, estrus is induced in the same period, and the reproductive performance of the ewes is improved. During the process, pay attention to semen quality inspection, pay attention to ejaculation disc, semen color, semen odor, sperm motility and density, and only meet the breeding requirements before breeding. At the same time, it is also matched with 0.3kg of concentrated feed, 2kg of hay powder and 2kg of silage. In the late pregnancy of Tan sheep, Tan sheep ewes are alone in a sheep pen. At the same time, the amount of concentrated feed should be increased to 0.5 kg. It cannot be spoiled and moldy feed, which will easily affect the development of lambs, and may also lead to the phenomenon of abortion ...

Embodiment 2

[0040]The Tan sheep as the female parent and the Dorper sheep as the male parent were crossed and artificially inseminated to obtain F1 hybrids. By injecting prostenol into the ewes, estrus was induced at the same time, and the reproductive performance of the ewes was improved. In the process of artificial insemination Pay attention to semen quality inspection, pay attention to ejaculation disc, semen color, semen odor, sperm motility and density, and meet the breeding requirements before breeding. Over 12 months, the selection criteria for the male Dorper sheep are full breasts, muscular hindquarters, strong limbs and moderate length, good posture, well-developed testes, strong libido, age 2-5 years old, body weight 90 -100kg, the selection criteria for the excellent male parent of the F1 generation hybrid in step b are: birth weight 3.5-4kg, weaning weight 20-25kg, six-month-old weight 30-35kg, and the selection standard for excellent female parent is birth weight 3- 3.5kg, ...

Embodiment 3

[0042] Tan sheep females should be intensively fed two weeks before fertilization. The Tan sheep ewes are fed 2 kg of yellow fodder, 0.5 kg of concentrated feed and 1 kg of silage every day. They should be fed twice a day, usually once at 8:00 in the morning. Once at 6 p.m., it is better to feed some green and juicy pastures every day, which can also improve the conception rate of ewes. Dorper sheep fathers should be fed more intensively two weeks before fertilization, and calcium and phosphorus supplements should be added every day. Feed 1-2 eggs and strengthen the exercise of the ram. The amount of exercise should not be less than 2 hours a day, so as to increase the physique of the ram's body and improve the quality of sperm. For the first three months after pregnancy, two kilograms of yellow silage feed is fed every day, along with 0.3kg of concentrated feed, 2kg of hay powder and 2kg of silage. In the late pregnancy of Tan sheep mothers, Tan sheep ewes are alone in a sheep...

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Abstract

The invention discloses a crossbreeding method for Tan sheep and Dorper sheep. The crossbreeding method includes the following steps: a. taking the Tan sheep as female parents and the Dorper sheep asmale parents to carry out crossbreeding, and performing artificial insemination to obtain F1-generation hybrids; and b, selecting excellent female parents and male parents from the F1-generation hybrids to carry out crossbreeding. In the method, the Tan sheep and the Dorper sheep are respectively selected as the female parents and the male parents to carry out crossbreeding, the excellent female parents and the excellent male parents are selected from the F1-generation hybrids, crossbreeding is performed to obtain F2-generation crossbred hybrids, excellent female parents in the F2-generation crossbred hybrids are crossbred with male Dorper sheep to obtain F3-generation crossbred hybrids, excellent female parents and male parents are selected from the F3-generation crossbred hybrids, crossbreeding is performed to obtain F4-generation crossbred hybrids, fixed populations are obtained through continuous crossbreeding of three generations, the genetic advantages of the Dorper sheep, including rapid growth, tall body and high environmental adaptability, are effectively inherited, and accordingly, the problems of small size and long breeding period of the Tan sheep are solved.

Description

technical field [0001] The invention relates to the technical field of Tan sheep cross-breeding, in particular to a cross-breeding method of Tan sheep and Dorper sheep. Background technique [0002] Tan sheep is a breed with both skin and meat. Tan mutton is an important product of Tan sheep. According to the "Compendium of Materia Medica", "mutton can warm the middle and nourish the deficiency, nourish the middle and invigorate the qi, calm the panic, appetize and strengthen the power, treat consumptive exhaustion and aversion to cold, five exhaustion and seven injuries", and can be used to treat exhaustion and lose weight, waist and knees Soreness, postpartum deficiency and cold, deficiency-cold stomach pain, kidney deficiency and impotence embolism. Tan mutton is tender in quality, no smell of mutton, evenly distributed in fat, low in fat content, rich in nutrients, and is a fine product in mutton. According to the detection of Inner Mongolia Agriculture, Animal Husban...

Claims

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Application Information

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IPC IPC(8): A01K67/02A23K10/12A23K10/30A23K10/20A23K20/24A23K20/26A23K50/10
CPCA01K67/02A23K10/12A23K10/20A23K10/30A23K20/24A23K20/26A23K50/10
Inventor 纪成军
Owner 宁夏宁羴源牛羊肉有限公司
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