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Method for improving reproductive performance of sow by putting procyanidine into daily ration

A technology of proanthocyanidins and reproductive performance, applied in the direction of additional food elements, application, animal husbandry, etc., to achieve the effect of large promotion and application value, improvement of litter performance, and increase of litter size

Active Publication Date: 2019-04-09
NANJING AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no report about proanthocyanidins improving the reproductive performance of sows in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The basic diet was fed to the sows according to the conventional method, and each pig was fed 2 kg each time. According to the ratio of 100mg / 2kg (low dose group), the proanthocyanidins were added to the conventional basal diet of sows, mixed evenly, and then fed. Feed on time at 7:00 every morning, and continue to add regular basic rations at 3:00 pm. Continuous feeding was carried out from the middle and late stages of lactation (2 weeks before weaning) to estrus after weaning (2 weeks after weaning), and the feeding continued for 4 weeks. Keep the temperature in the house suitable, ventilate and take a breath, and clean it in time.

[0020] Proanthocyanidins were purchased from Tianjin Jianfeng Natural Products Research and Development Co., Ltd., and the appearance of feeding was reddish-brown powder with a purity of ≥95%.

Embodiment 2

[0022] The basic diet was fed to the sows according to the conventional method, and each pig was fed 2 kg each time. According to the ratio of 200mg / 2kg (high-dose group), proanthocyanidins were added to the conventional basal diet of sows, mixed evenly, and then fed. Feed on time at 7:00 every morning, and continue to add regular basic rations at 3:00 pm. Continuous feeding was carried out from the middle and late stages of lactation (2 weeks before weaning) to estrus after weaning (2 weeks after weaning), and the feeding continued for 4 weeks. Keep the temperature in the house suitable, ventilate and take a breath, and clean it in time.

[0023] Proanthocyanidins were purchased from Tianjin Jianfeng Natural Products Research and Development Co., Ltd., and the appearance of feeding was reddish-brown powder with a purity of ≥95%.

Embodiment 3

[0025] The basic diet was fed to the sows according to the conventional method, and each pig was fed 2 kg each time. According to the ratio of 150mg / 2kg, the proanthocyanidins were added to the conventional basal diet of sows, mixed evenly, and then fed. Feed on time at 7:00 every morning, and continue to add regular basic rations at 3:00 pm. Continuous feeding was carried out from the middle and late stages of lactation (2 weeks before weaning) to estrus after weaning (2 weeks after weaning), and the feeding continued for 4 weeks. Keep the temperature in the house suitable, ventilate and take a breath, and clean it in time.

[0026] Proanthocyanidins were purchased from Tianjin Jianfeng Natural Products Research and Development Co., Ltd., and the appearance of feeding was reddish-brown powder with a purity of ≥95%.

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PUM

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Abstract

The invention belongs to the field of feed additives and discloses a method for improving reproductive performance of sows by putting procyanidine into daily ration. During the middle and later periodof lactation (2 weeks before ablactation) and a period of postweaning estrus (2 weeks after ablactation), 150-300mg / day of procyanidine is additionally put into basic daily ration, and then the litter size and the primary weights of piglets of sows can be remarkably increased. For a pig farm with a low piglet number and serious environment adverse stress, the reproductive performance of sows canbe remarkably improved by putting the procyanidine into the daily ration; for a pig farm with good reproductive performance, the number of piglets can be also effectively increased by putting the procyanidine into the daily ration. The testing cost of the technique is less than 1000 Yuan for every 100 sows and piglets thereof, the piglet number is increased by 35-145, and the technique has great popularization and application values in pig farms with both excellent and poor piglet numbers.

Description

technical field [0001] The invention belongs to the field of feed additives, and in particular relates to a method for improving the reproductive performance of sows by adding proanthocyanidins to diets. Background technique [0002] In pig production, the most important factor that determines the production level and economic benefits of a pig farm is the reproductive performance of sows. However, due to changes in the environment, feed, management and other factors, sows are subject to greater environmental stress, and are prone to miscarriage, stillbirth, and mummified fetuses during production, which in turn leads to a reduction in sow litter size, which greatly affects the Productivity in pig farming. Therefore, how to improve the reproductive performance of sows has become an urgent problem to be solved in pig production. Studies have shown that adding certain functional substances to the feed can improve the reproductive performance of sows. However, in the prior a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K50/30A23K20/105
CPCA23K20/105A23K50/30
Inventor 刘红林申明吴望军
Owner NANJING AGRICULTURAL UNIVERSITY
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