Efficient heat detection and synchronous fertilization method of replacement gilts and multiparous sows

A technology for gilts and sows, applied in the field of livestock breeding, can solve the problems of increasing non-production days and culling rate of sows, low estrus rate, etc., so as to improve the breeding and farrowing rate, improve the utilization rate, and reduce the non-production days. Effect
CN105409871AInactive Publication Date: 2016-03-23NINGBO SANSHENG PHARMA
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
NINGBO SANSHENG PHARMA
Publication Date
2016-03-23
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides an efficient heat detection and synchronous fertilization method of replacement gilts and multiparous sows. The method has the advantages that mating of the multiparous sows and that of the added replacement gilts can be synchronized to allow batch management for sow's production; utilization and mating productivity of sows can also be increased; non-productive days for sows are fewer; work efficiency of mating staff can be improved; the purpose of all in and all out is easily obtainable, and sows can be imparted same reproductive statuses, health statuses and immune statuses.
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Description

technical field

[0001] The invention relates to the field of livestock reproduction, in particular to a method for efficient estrus detection and synchronous conception of back-up and multiparous sows. Background technique

[0002] After the gilts reach maturity, the estrus rate is often low, and the estrus rate of multiparous sows within 7 days of weaning is also low. The reasons are insufficient or disordered hormone secretion, insufficient estrogen responsiveness, and nutritional Factors such as sexual factors, feed mycotoxin contamination, and diseases eventually lead to a significant increase in the number of non-productive days and the culling rate of sows.

[0003] For nearly half a century, sow estrus synchronization and timed insemination technology have been important research directions in the field of livestock reproduction. The gilts were fed 20mg tetraenestrone for 18 consecutive days to prevent the follicular development of the sows and synchronize the sexual...

Claims

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