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A feed for pregnant sows that reduces sow stereotyped behavior and stillbirth rates

A technology for pregnant sows and stillbirth rate, applied in the field of livestock and poultry breeding, can solve the problems of reducing piglet birth weight and survival rate, reducing litter weight and individual weight of piglets, affecting the health and welfare of sows, etc.

Active Publication Date: 2021-05-11
SOUTH CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, sows are restricted to feed, and the feed intake that can be provided accounts for 0.4 to 0.6 of the voluntary feed intake. Pregnant sows are often in a state of starvation or semi-starvation, and their satiety is not satisfied, and stereotyped behaviors frequently occur
Frequent occurrence of stereotyped behavior not only increases aggression and competition for food during group feeding, seriously affects the health and welfare of sows, but also reduces birth weight and survival of piglets
In addition, constipation and poor appetite of sows during the peripartum period affect the feed intake and milk production of sows during the lactation period, reduce the litter weight and individual weight of piglets, and reduce the reproductive performance of sows

Method used

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  • A feed for pregnant sows that reduces sow stereotyped behavior and stillbirth rates
  • A feed for pregnant sows that reduces sow stereotyped behavior and stillbirth rates
  • A feed for pregnant sows that reduces sow stereotyped behavior and stillbirth rates

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Embodiment 1 sow gestation feed formula

[0044] In actual production, the limited feeding mode is usually used to ensure the best fertility of reproductive sows. However, excessive feed restriction can lead to unsatisfied sows' satiety during gestation and frequent occurrence of stereotyped behaviors, resulting in increased stress levels and reduced reproductive performance of sows. Dietary fiber refers to plant polysaccharides that cannot be digested and absorbed by the digestive tract, but can only be fermented by intestinal microorganisms, and have very important nutritional and health functions. In terms of sow nutrition, dietary fiber can be added during gestation to improve sow satiety, reduce sow stereotyped behavior, relieve sow oxidative stress, and improve sow reproductive efficiency. It is worth noting that different sources and levels of dietary fiber supplementation in sows during gestation have different effects. Therefore, an appropriate level of dieta...

Embodiment 2

[0051] Example 2 Effect of adding different levels of wheat aleurone during pregnancy on reproductive performance of sows and growth performance of piglets and analysis of economic benefits

[0052] In order to verify the effect of the present invention, the reproductive performance of sows and the growth performance of piglets in different levels of wheat aleurone layer powder groups were compared, and the economic benefits of each group were analyzed and compared according to the reproductive performance results.

[0053] 1. Experimental animals

[0054] The experimental animals were healthy and grown dual multiparous sows (pregnant sows of parity 3 to 8), and the experimental site was Happy Breed Farm in Guiyang County, Chenzhou City, Hunan Province.

[0055] 2. Test treatment and grouping

[0056] Before mating sows, 84 sows were selected according to body weight, backfat and parity, and divided into 3 groups randomly, namely blank control group, 15wt% wheat aleurone grou...

Embodiment 3

[0079] Example 3 Effect of adding different levels of wheat aleurone during pregnancy on nutrient digestibility of sows

[0080] 1. Experimental animals

[0081] The test animals are the healthy grown-up dual multiparous sows (pregnant sows of parity 3-8) in Example 2, and the test site and method (feed and feeding amount) are the same as in Example 2.

[0082] 2. Sample collection and test method

[0083] Choose 6 sows in each group of embodiment 2, adopt chromium trioxide (Cr 2 o 3 ) was used as an exogenous indicator to carry out the digestion test, and the test period was 9 days. Add 0.3wt% Cr to the feed at 60 days of gestation 2 o 3 After 6 days of pre-feeding, the feed samples and feces samples were collected continuously for 3 days. After feeding the feed every day, collect the feces of the sows, once in the morning and afternoon, 150g each time (randomly selected from the feces), and try to complete the collection within 1-2 hours for each group, and add 10wt% h...

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Abstract

The invention belongs to the technical field of livestock and poultry breeding, in particular to a feed for pregnant sows that reduces stereotyped behavior and stillbirth rate of sows. The pregnant sow feed for reducing sow stereotyped behavior and stillbirth rate includes the following components: corn, soybean meal, soybean hulls, wheat aleurone, stone powder, calcium bicarbonate, sodium chloride, 70 lysine, Choline chloride, baking soda, mold remover and premix; wherein, the content of wheat aleurone is 15wt%. The feed for pregnant sows can promote satiety of sows, reduce stereotyped behavior of sows, relieve stress level of sows and improve reproductive performance, and has good economic benefits.

Description

technical field [0001] The invention belongs to the technical field of livestock and poultry breeding, in particular to a feed for pregnant sows that reduces stereotyped behavior and stillbirth rate of sows. Background technique [0002] China is the country with the largest number of pigs in the world, accounting for more than half of the global pig population. Although China is a big pig raising country, it is also one of the countries with the lowest pig raising efficiency in the world. Productivity per sow pertear (PSY) is a core index to measure the reproductive efficiency of sows and the production level of pig farms. According to statistics, the average PSY level of domestic sows is between 14 and 25 heads, while the average PSY level of pig raising countries such as the United States, Denmark and Ireland has reached 30 or even higher. Therefore, improving the reproductive efficiency of sows is one of the important ways to effectively improve the efficiency of raisi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23K20/20A23K20/174A23K20/142A23K20/105A23K20/10A23K10/37A23K10/30A23K20/22A23K20/26A23K50/30
CPCA23K10/30A23K10/37A23K20/10A23K20/105A23K20/142A23K20/174A23K20/20A23K20/22A23K20/26A23K20/30A23K50/30Y02P60/87
Inventor 谭成全邓近平任文凯邓百川于浩源程传辉黄双波
Owner SOUTH CHINA AGRI UNIV
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