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Artificial insemination method for increasing conception rate of cows

A conception rate and cow technology, applied in medical science, veterinary equipment, animal delivery, etc., can solve the problems of narrow application range and low conception rate, and achieve the effect of wide range, large coverage and improved breeding efficiency

Inactive Publication Date: 2018-12-18
沙洋县汉江牛业发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] (1) The conception rate is low, usually only over 40%;
[0011] (2) Only inseminate and breed cows that show estrus (specifically, cows that are 50-85 days postpartum), and the scope of application is narrow

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Embodiment 1 provides a kind of artificial insemination method that improves cow conception rate, and this method comprises the steps:

[0047] (1) Prepare materials, reagents, and medicines: artificial insemination equipment and equipment, long arm gloves, disposable syringes, normal saline, cloprostinol sodium for injection (Ningbo Sansheng Pharmaceutical Co., Ltd., 0.2mg / bottle), injection Gonadotropin-releasing hormone (Ningbo Sansheng Pharmaceutical Co., Ltd., 100 μg / bottle) and frozen semen (Simmental cattle, packed in thin tubes) were used.

[0048] (2) Cattle herd selection and health check: 15 Simmental cattle were selected that were healthy, with medium to upper-medium body condition, 60-90 days postpartum, and whose reproductive organs returned to normal.

[0049](3) Exogenous hormone treatment and artificial insemination method: 15 cows were intramuscularly injected with GnRH at 7:00-8:00 am on the 0th day, 100μg / head; Perform rectal examination and perform...

Embodiment 2

[0053] Embodiment 2 provides a kind of artificial insemination method that improves cow conception rate, and this method comprises the steps:

[0054] (1) Prepare materials, reagents and medicines: the same as in Example 1 (sperm Holstein cattle).

[0055] (2) Cattle selection and health check: select 16 Holstein cows that are healthy, with medium to medium body condition, 60-90 days postpartum, and whose reproductive organs have returned to normal.

[0056] (3) Exogenous hormone treatment and artificial insemination method: 7:00-8:00 am on the 0th day, 16 cows were intramuscularly injected with GnRH, 100 μg / head; on the 4th day, 2 cows were in estrus, and rectal examination was performed After that, artificial insemination was performed on the morning of the 5th day; at 7:00-8:00 am on the 7th day, the remaining 14 cows were intramuscularly injected with PGF 2α , 0.4mg / head; on the 8th day, 1 cow was in estrus, and after the rectal examination, artificial insemination was pe...

Embodiment 3

[0060] Embodiment 3 provides a kind of artificial insemination method that improves cow conception rate, and this method comprises the steps:

[0061] (1) Prepare materials, reagents, and medicines: the same as in Example 1.

[0062] (2) Cattle herd selection and health check: 12 healthy, medium-to-medium-upper fat condition, 16-20-month-old, unmated Simmental cows were selected.

[0063] (3) Exogenous hormone treatment and artificial insemination method: 7:00-8:00 am on the 0th day, 12 cows were intramuscularly injected with GnRH, 100 μg / head; on the 3rd day, 1 cow was in estrus, and rectal examination was performed After that, artificial insemination was performed on the morning of the fourth day; at 7:00-8:00 am on the seventh day, the remaining 11 cows were intramuscularly injected with PGF 2α , 0.4mg / head; 7:00-8:00 am on the 9th day, 11 cows were intramuscularly injected with GnRH, 100μg / head; the rectal examination began at 7:00 am on the 10th day, and 7 cows had matur...

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PUM

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Abstract

The invention discloses an artificial insemination method for increasing conception rate of cows, and belongs to the technical field of artificial insemination of cows. The method comprises the following steps: (1), performing physical examination of cows on day 0, and performing intramuscular injection of GnRH for the cows according with the requirements, wherein the injection dose is 100-150 micrograms / cow; (2), performing intramuscular injection of PGF2alpha for the cows which are not rutting on day 7, wherein the injection dose is 0.4-0.5 mg / cow; (3), performing intramuscular injection ofGnRH for the cows which are not rutting on day 9, wherein the injection dose is 100-150 micrograms / cow; (4), performing artificial insemination in the morning of day 10 if a follicle is mature, or performing the artificial insemination in the afternoon of day 10 if the follicle is not mature. After the step (1), if the cows are rutting, the steps (2) and (3) are saved, and step (4) is directly performed; after step (2), if the cows are rutting, the step (3) is saved and step (4) is directly performed. The method can enable the conception rate of cows in the heat period to reach 70% or more, and enable the conception rate of cows which are not in the heat period to reach 60% or more.

Description

technical field [0001] The invention relates to the technical field of artificial insemination of cows, in particular to an artificial insemination method for improving the conception rate of cows. In this method, the conception rate of cows in estrus can reach more than 70%, and the conception rate of cows without estrus performance can also reach more than 60%. Background technique [0002] Beef and milk are important consumer goods for urban and rural residents. The cattle industry plays an important role in animal husbandry and agricultural economy, and is of great significance to improving farmers' income, developing rural economy, and promoting the transformation and utilization of straw. [0003] Reproduction produces offspring, enabling the group to survive, evolve and develop. It can be said that reproduction is the core of the cattle industry. The level of reproductive rate is directly related to calf output, cow milk production, cow culling, etc., which affects t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61D19/02
CPCA61D19/02
Inventor 李晓锋刘波
Owner 沙洋县汉江牛业发展有限公司
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