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Staged sow feeding method capable of improving reproductive performance and relieving inflammatory response

A feeding method and inflammatory response technology, applied in application, animal feed, animal feed, etc., can solve the problem of not improving the inflammatory state of pregnant and lactating sows and suckling piglets, improve reproductive performance, and reduce serum inflammatory factors. level, the effect of increasing feed intake

Pending Publication Date: 2021-04-02
CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Previous studies have focused on a single stage of gestation or lactation, and no studies have reported improvement in the inflammatory state of pregnant and lactating sows and suckling piglets

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Select 24 binary sows (Landrace × Large White) with similar parity and body weight at 85 days of gestation, and randomly divide them into two treatment groups (control group and test group), each treatment has 12 replicates, and each replicate has 1 head sow. The test started from the 85th day of gestation to the end of the 21st day of lactation, and was divided into late pregnancy (85 days of gestation to before delivery) and lactation (delivery day to 21 days of lactation). In the late pregnancy, each sow was fed with 3kg of feed per day, and during the lactation period, each sow was fed with 0.5kg of feed on the day of delivery, and then the amount of feed was increased by 1kg per day until the sows had free access to food for 6 days of lactation.

[0026]The nutritional levels of the two groups of diets were consistent, and the weight percentage components were as follows:

[0027] Control group: Late pregnancy diet: corn 73.9%, soybean meal 22%, soybean oil 0.85%,...

Embodiment 2

[0032] Statistical analysis is carried out to the reproductive performance of the sows of test group and control group in embodiment 1, and the result is as shown in table 1, and the result shows, test group sow feed intake during lactation significantly improves 11.0% (P<0.05), lactation Body loss during lactation tended to decrease (P=0.09), which decreased by 24.0%. Although there was no significant difference in backfat loss during lactation, it decreased by 18.7% in value. And the weaning litter weight in the test group tended to increase (P=0.06), which increased by 12.9%, and the litter weight gain increased significantly by 18.4% (P<0.05). In addition, the daily weight gain of suckling piglets in the test group tended to increase (P=0.07), which increased by 9.9%. Although there was no significant difference in the weaning weight of piglets, it increased by 6.7% in value.

[0033] Table 1 Effects on reproductive performance of sows

[0034] project control ...

Embodiment 3

[0036] Example 3 Analysis of the Effects of Sow Serum Immunoglobulins and Inflammatory Factors

[0037] The contents of serum immunoglobulin and inflammatory factors of sows in the test group and control group in Example 1 were detected and statistically analyzed, and the results are shown in Table 2. The results showed that on pregnancy day 107, the serum interleukin-6 level of sows in the test group decreased significantly (P<0.01), while the interleukin-10 level tended to increase (P=0.08). Interleukin-6 is a pro-inflammatory cytokine that can promote inflammatory response, and the decrease of its level indicates that the body's inflammatory state has been alleviated; interleukin-10 is an anti-inflammatory cytokine that can inhibit the secretion of inflammatory factors, Thereby inhibiting the inflammatory response of the body, and the increase of its level also shows that the inflammatory response in the sow is alleviated. On lactation day 21, the level of interleukin-6 wa...

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Abstract

The invention relates to the technical field of pig feed feeding, in particular to a staged sow feeding method capable of improving reproductive performance and relieving inflammatory response. The feeding method is divided into two stages, namely a late pregnancy stage and a lactation stage, corresponding feed is matched for each stage, and used raw materials comprise corn, soybean meal, wheat bran, beet pulp, soybean oil, calcium hydrophosphate, mountain flour, edible salt, lysine, valine and premix. According to the feeding method, the reproductive performance of the sows is effectively improved, the feed intake, the weaning litter weight and the daily gain of suckling piglets of the sows in the lactation period are increased, and the body loss of the sows in the lactation period is reduced; and besides, the level of inflammatory factors in serum of sows in the later period of pregnancy and the lactation period is reduced, meanwhile, the level of inflammatory factors in colostrum and ordinary milk is reduced, then the level of serum inflammatory factors of suckling piglets is reduced, and therefore inflammatory reactions of the sows and the piglets of the sows are effectively relieved.

Description

technical field [0001] The invention relates to the technical field of pig feed feeding, in particular to a stage-by-stage feeding method for sows that improves reproductive performance and slows down inflammatory reactions. Background technique [0002] In late pregnancy, sows are vulnerable to stress from many aspects, such as rapid fetal growth, feed restriction, etc., which lead to systemic inflammation in the body. In addition, during childbirth, the birth canal is extremely vulnerable to damage, further exacerbating the inflammatory response. Even during lactation, sows often undergo intense anabolism and catabolism in order to meet the needs of lactation, which can easily lead to metabolic disorders and autoinflammatory responses. These inflammatory reactions lead to an increase in the level of inflammatory factors in the sow (such as serum, milk), which will not only have negative effects on the sow’s own reproductive performance and body health, but also pass it to...

Claims

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Application Information

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IPC IPC(8): A01K67/02A23K50/30A23K10/30A23K10/37A23K20/158A23K20/26A23K20/20A23K20/142A23K20/174A23K40/10
CPCA01K67/02A23K50/30A23K10/30A23K10/37A23K20/158A23K20/26A23K20/20A23K20/142A23K20/30A23K20/174A23K40/10Y02P60/87
Inventor 朴香淑尚庆辉刘汉锁刘苏捷马红
Owner CHINA AGRI UNIV
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