Method for increasing postweaning estrus rate of sows after giving birth

A technology for estrus rate and sows, which is applied in animal husbandry and other fields, can solve problems such as adverse reproductive performance of sows, reduction of sows' annual litter size, and impact on production efficiency, so as to reduce culling of sows, increase estrus rate, and improve Effect on conception rate
CN104255646AInactive Publication Date: 2015-01-07GUANGXI YANGXIANG AGRI & ANIMAL HUSBANDRY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GUANGXI YANGXIANG AGRI & ANIMAL HUSBANDRY
Publication Date
2015-01-07
Estimated Expiration
Not applicable · inactive patent
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Abstract

The invention discloses a method for increasing the postweaning estrus rate of sows after giving birth. The method includes the steps that (1), the sows eat forage freely after weaning, and meanwhile energy substances, nutritional substances and green forage are added to the forage; (2) the forage is reduced three days before weaning in a maternity ward and is not reduced in the weaning day, the sows are directly driven to a playground and driven to a locating fence the next day, 210 forage is fed continuously, the sows eat the forage freely, and the sensing temperature between 15 DEG C and 18 DEG C is created; (3) the sows failing to rut seven days after weaning and the sows failing to rut for a long time are driven to the playground once every day; (4) hormone is used for promoting estrus, wherein 1 ml of cloprostenol is injected into the sows failing to rut twenty days after weaning, and a part of PG600 for one sow is injected into each sow after 24 hours. By the adoption of the method, corresponding measures can be taken in time, the workloads of hybridization workers are reduced, work efficiency is improved, eliminated sows are reduced, cost is reduced, the postweaning estrus rate of the sows after giving birth is increased, and the conception rate and the number of born piglets are increased.
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Description

technical field

[0001] The invention relates to a method for increasing the estrus rate of sows, in particular to a method for increasing the estrus rate of first-parity sows after weaning. Background technique

[0002] For large-scale breeding pig farms, the estrus rate of a sow after weaning directly affects the production cost and production performance of the entire pig farm. Faced with a lot of problems is that a large number of first-parity sows are weaned more and have a low estrus rate, which reduces the annual litter size of sows, affects production efficiency, and is not conducive to the performance of sows' reproductive performance. Therefore, the first litter of sows should be allowed to estrus early. Contents of the invention

[0003] The purpose of the present invention is to provide a method for improving the estrus rate of first-parity sows after weaning.

[0004] This method of improving the estrus rate of first litter sows after weaning: consists of the...

Claims

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