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Handling method for estrus synchronization of yaks

A processing method and technology for yak, applied in the field of animal husbandry and breeding, can solve problems such as unsatisfactory effects, and achieve the effects of good corpus luteum formation, reduction of human and material resource consumption, and shortening of breeding period.

Inactive Publication Date: 2014-05-14
LANZHOU INST OF ANIMAL SCI & VETERINARY PHARMA OF CAAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although researchers from all over the world have done a lot of work on yak estrus synchronization (Shao Binquan, 1984, 1986; Yang Tingyou, 1984; Liu Zhiyao, 1985; Shi Weiwen et al., 1985; Zhao Bingyao et al., 1994A.Magash et al., 1997; M. Davaa et al., 2000), some progress has also been made, but the effect is not satisfactory when applied to production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A method for processing yak estrus synchronously, comprising the following steps:

[0017] S1. To form a herd of yaks that are going to be in estrus at the same time. The cows are required to be healthy and disease-free, especially not to have reproductive diseases, aged between 3.0-8.0 years old, more than 2 months after calving, and medium fat condition;

[0018] S2. Before carrying out the synchronous estrus work one month ago, supplementary feeding of trace element salt bricks was carried out to the synchronous estrus herd organized in step S1, and the average daily supplementary feeding amount of the head was 50g;

[0019] S3. On any day of the yak estrous cycle, intramuscularly inject vitamin AD to the cows in step S2, the injection volume is 5ml / head;

[0020] S4, place the CIDR on the cow in step S3 with a special plug-in device;

[0021] S5. On the 8th day after CIDR release, inject cloprostenol PG to the cow group in step S4, and the injection amount is 0.2 m...

Embodiment 2

[0025] A method for processing yak estrus synchronously, comprising the following steps:

[0026] S1. To form a herd of yaks that are going to be in estrus at the same time. The cows are required to be healthy and disease-free, especially not to have reproductive diseases, aged between 3.0-8.0 years old, more than 2 months after calving, and medium fat condition;

[0027] S2. Before carrying out the synchronous estrus work one month ago, supplementary feeding of trace element salt bricks was carried out to the synchronous estrus herd organized in step S1, and the average daily supplementary feeding amount of the head was 65g;

[0028] S3. On any day of the yak estrous cycle, intramuscularly inject vitamin AD to the cows in step S2, the injection volume is 5ml / head;

[0029] S4, place the CIDR on the cow in step S3 with a special plug-in device;

[0030] S5. On the 8th day after CIDR release, inject cloprostenol PG to the cow group in step S4, and the injection amount is 0.3 m...

Embodiment 3

[0034] A method for processing yak estrus synchronously, comprising the following steps:

[0035] S1. To form a herd of yaks that are going to be in estrus at the same time. The cows are required to be healthy and disease-free, especially not to have reproductive diseases, aged between 3.0-8.0 years old, more than 2 months after calving, and medium fat condition;

[0036] S2. Before carrying out the synchronous estrus work one month ago, supplementary feeding of trace element salt bricks was carried out to the synchronous estrus herd organized in step S1, and the average daily supplementary feeding amount of the head was 80g;

[0037] S3. On any day of the yak estrous cycle, intramuscularly inject vitamin AD to the cows in step S2, the injection volume is 5ml / head;

[0038] S4, place the CIDR on the cow in step S3 with a special plug-in device;

[0039] S5. On the 8th day after the CIDR was released, the cows in step S4 were injected with cloprostenol PG, and the injection am...

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PUM

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Abstract

The invention discloses a handling method for estrus synchronization of yaks. The handling method includes: organizing yak groups with the estrus synchronization; one month before the estrus synchronization, supplementarily feeding the organized yak groups with the estrus synchronization on a microelement of salt licks, wherein the supplementary feeding amount of each yak ranges from 50g to 80g per day; subjecting the female yak groups to intramuscular injection of Vitamin AD with the injection volume of 5ml per yak; placing CIDR in female yaks with a special bolt discharge device; on the 8th day after the CIDR is placed, subjecting the yak groups to injection of cloprostenol of PG, wherein the injection volume ranges from 0.2mg to 0.4mg per yak; on the 3rd day after injection of the PG, taking out the CIDR from the yak groups; subjecting the yaks with the estrus synchronization and teasing male yaks to group feeding, taking mounting behaviors which are stably received from the male yaks or other yaks as estrus characteristics, and performing twice semen deposition on each yak. By the handling method, matching rate and pregnancy rate of the yaks can be increased, mating period can be shortened, infertility can be reduced, reproductive rate can be improved, labor and resource consumption are reduced, the artificial insemination technology can be carried out beneficially on the yaks, and organization of reproduction can be facilitated.

Description

technical field [0001] The invention belongs to the technical field of animal husbandry and relates to a method for treating yak estrus synchronously. Background technique [0002] Estrus synchronization technology is one of the important reproduction control technologies in modern animal husbandry production. It uses certain hormone preparations to artificially control and adjust the estrus cycle of a group of female animals, so that they can concentrate on estrus, centralized breeding, concentrated pregnancy, and concentrated delivery. Organization of production and management. In addition, the estrus synchronization technology is also conducive to the further promotion of artificial insemination technology, and it is also an important part of the embryo transfer work. Estrus synchronization technology has been widely used in livestock and poultry breeding, and has achieved certain results. However, for yaks bred in the high-cold and low-oxygen environment at an altitude...

Claims

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Application Information

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IPC IPC(8): A61D7/00A61K31/5585A61P15/00A61K31/07A61K31/59
Inventor 梁春年阎萍郭宪丁学智王宏博包鹏甲裴杰褚敏郎侠朱新书
Owner LANZHOU INST OF ANIMAL SCI & VETERINARY PHARMA OF CAAS
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