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

Inactive Publication Date: 2015-01-07
GUANGXI YANGXIANG AGRI & ANIMAL HUSBANDRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Many problems are faced with a large number of first-parity sows with more weaning and low estrus rate, which reduces the annual litter size of sows, affects production efficiency, and is not conducive to the reproductive performance of sows

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment

[0012] 1. First litter sows lose fat very quickly after weaning. After weaning, they should be allowed to eat freely. At the same time, add some energy substances (brown sugar), nutritional substances (electrolytic multidimensional) and green feed to the feed.

[0013] 2. It is recommended to reduce the feed 3 days before the weaning of the first litter sows in the delivery room. No feed is fed on the day of weaning, and they are placed directly on the playground. The next day, they rush back to the positioning pen and continue to feed 210 feed ad libitum, creating a feeling temperature of 15-18°C , Keep the piggery clean, dry and ventilated, with sufficient drinking water, do a good job of heatstroke prevention and cooling in summer (the temperature should not exceed the temperature of 27°C), and do a good job of cold protection and warmth in winter. On the second day, boars were used to stimulate and check the estrus, once a day in the morning and in the afternoon, and each t...

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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.

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K67/02
CPCA01K67/02
Inventor 覃东运谭岳华覃李刚覃梦枝江耀华邹庆坚张从林江科
Owner GUANGXI YANGXIANG AGRI & ANIMAL HUSBANDRY
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