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Products and methods for promoting oestrus in female mammals

A technology for mammals and females, applied in the field of veterinary medicine and reproductive medicine, can solve the problems of unstable PMSG quality, reduced response ability, and influence on PMSG, so as to improve the reproductive performance of female animals, reduce the rate of missing mating, and promote the effect of follicle development

Pending Publication Date: 2022-05-20
BEIJING ACADEMY OF AGRICULTURE & FORESTRY SCIENCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

PMSG is extracted from the blood of pregnant mares, and its quality is affected by various factors such as mare's gestation time, body size, parity, exercise, body condition, genetics, etc., resulting in unstable quality of PMSG between different batches
In addition, PMSG is an exogenous protein, long-term use will easily lead to the body to produce antibodies, thereby reducing the body's ability to respond to PMSG, affecting the effect of PMSG on stimulating follicular development and synchronizing estrus

Method used

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  • Products and methods for promoting oestrus in female mammals
  • Products and methods for promoting oestrus in female mammals

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Weaned Large White × Landrace binary cross weaning sows that were healthy and had similar litter performance were injected with normal saline, 0.5 mg Kp, 1 mg Kp and 1000 IU PMSG 24 hours after weaning, and 3 sows were treated in each group. On the day of weaning, the 1st day, the 2nd day, the 3rd day and the 4th day after weaning, the follicular growth and development of the sows in each treatment group were detected by B-ultrasound abdominal ultrasound, and the test results were as follows: figure 1 As shown, sows treated with Kp can promote follicular growth.

Embodiment 2

[0034] Weaned Large White × Landrace binary cross weaned sows that were healthy and had similar litter performance were selected. The day of weaning was recorded as "Day 0", and the weaning time was 16:00.

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PUM

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Abstract

The invention provides a product for promoting oestrus of female mammals, the product comprises kiss-actuator (Kp) and gonadotropin releasing hormone (GnRH), and oestrus and conception of female animals can be remarkably promoted through the synergistic effect of the kiss-actuator (Kp) and the GnRH. The invention further provides a method for promoting oestrus of the female mammals, an effective dose of Kp is applied in the early oestrus period of the female mammals, then an effective dose of GnRH is applied, follicle development of the female mammals can be effectively promoted, the oestrus rate and conception rate of the female mammals are increased, the missed mating rate of the female mammals with recessive oestrus is reduced, and the oestrus of the female mammals is promoted. The device is suitable for being applied to the synchronous oestrus and timed insemination procedures of the female livestock.

Description

technical field [0001] The invention belongs to the technical fields of veterinary medicine and reproductive medicine, and in particular relates to a product and a method for promoting the reproductive performance of female animals. Background technique [0002] In the animal husbandry industry, the reproductive performance of animals is directly related to the production and breeding benefits. Problems such as insignificant estrus symptoms, irregular estrus and ovulation, and delayed ovulation during the breeding process of animals will lead to a decrease in the conception rate of animals and a prolonged interval between weaning and breeding. , Reproductive performance decline, affecting large-scale breeding production management efficiency and economic benefits. It is an important measure to increase the reproductive rate to treat the female animal at childbearing age or within a certain period of time after the female animal gives birth to stimulate the development of the...

Claims

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Application Information

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IPC IPC(8): A61K38/09A61K38/22A61P15/08
CPCA61K38/09A61K38/22A61P15/08A61K2300/00
Inventor 刘彦秦玉圣田见晖白佳桦宋玉清许晓玲冯涛肖霖力
Owner BEIJING ACADEMY OF AGRICULTURE & FORESTRY SCIENCES
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