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Anti-heat stress feed additive and application thereof

A feed additive and anti-heat stress technology, which is applied in applications, animal feed, animal feed, etc., can solve the problems of anti-heat stress additives, such as unsatisfactory effects, toxic and side effects drugs, and residues, so as to improve heat stress resistance ability, improve production performance, and increase the effect of litter size

Active Publication Date: 2010-09-15
ANHUI ZHONGSHENG PHARMA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there are many anti-heat stress additives reported, including electrolyte balance agents, acid preparations, drugs and biological agents, but the effects of these anti-heat stress additives are not ideal, and long-term use of some anti-heat stress drugs is inevitable. Toxic side effects and drug residues

Method used

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  • Anti-heat stress feed additive and application thereof
  • Anti-heat stress feed additive and application thereof
  • Anti-heat stress feed additive and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] This example was carried out in Xiamen Muxing Industrial Co., Ltd., a total of 160 sows with 2-5 parities of 85 days of pregnancy were selected, and a single-factor comparative experimental design was adopted. The sows were divided according to parity, body condition score and backfat thickness The pigs were randomly divided into 4 groups, 40 heads in each group. The control group was fed with corn-soybean meal-based rations, and the experimental groups were supplemented with 0.2%, 0.35% and 0.5% anti-heat stress feed additives on the basis of the control group. Liquid methionine, lipoic acid, arginine and carrier (zeolite powder: rice husk powder = 1:1) are prepared by mixing with a mass ratio of 1:1:10:10]. The test period was from the 85th day of gestation to the end of weaning on the 21st day of sow gestation. The inspection indicators included the litter size of sows, litter weight at birth and individual weight at birth (results are shown in Table 1).

[0022] Ta...

Embodiment 2

[0027] The animals used were the same as in Example 1. Within 24 hours after the sow gave birth, the actual number of sows with piglets was about 10 by means of cross-fostering, and the investigation indicators included the daily gain of piglets and the weaning weight at the age of 21 days (results are shown in Table 2 ).

[0028] Table 2 Effect of application of anti-heat stress feed additives on growth performance of piglets

[0029]

[0030]

[0031] Note: Different superscripts of the means of the same industry mean that there is a significant difference between the two (P<0.05).

[0032] The results show that: the anti-heat stress feed additive of the present invention significantly improves the birth weight, daily gain and weaning weight of piglets at the age of 21 days.

Embodiment 3

[0034] This example was carried out in the first pig farm of Fuqing Fengze Agriculture and Animal Husbandry. A total of 30 breeding sows with 2-8 parities were selected, and a single factor comparative experimental design was adopted, and they were randomly divided into a control group and 0.35% anti-heat stress feed additive. Test group [the feed additive is prepared by mixing liquid methionine, lipoic acid, arginine and carrier (bentonite) at a mass ratio of 0.4:1:2:4]. The experiment started from the day of breeding to the end of farrowing. The inspection indicators include the litter size of sows, the number of live piglets born in the litter, the weight of newborn piglets, and the weight of newborn individuals. The results of the observations are listed in Table 3 below.

[0035] Table 3 Effects of application of anti-heat stress feed additives on sows' farrowing performance

[0036]

[0037] The results show that: after using the anti-heat stress feed additive of th...

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Abstract

The invention discloses an anti-heat stress feed additive, which mainly comprises liquid methionine, lipoic acid, arginine and a vector carrying the liquid methionine in a mass ratio of 0.4-1:1:2-10:4-10. The invention also relates to application of the anti-heat stress feed additive in improving the breeding performance and anti-heat stress capability of sows. Litter size of the sows can be increased and a birth weight, a daily gain and a weaning weight of piglets can be obviously increased by adding 0.2 to 0.5 percent of the anti-heat stress feed additive into a compound feed for the sows. The anti-heat stress feed additive can obviously improve the production performance of the sows in a heat stress environment, has obvious economic benefit and is suitable for intensive and massive pig breeding.

Description

technical field [0001] The invention relates to a feed additive, in particular to an anti-heat stress feed additive and its application. Background technique [0002] Heat stress refers to the sum of non-specific physiological responses made by the thermal environment to any requirements put forward by the body when the body is in a high-temperature environment. Sows are sensitive to heat stress due to their large body size, high metabolic rate and lack of functional sweat glands to dissipate body heat through evaporative processes, making sows very heat intolerant. Heat stress can affect the health status, feed intake, and endocrine activity of sows, resulting in changes in physiological and biochemical processes in the body, which in turn affect their estrus, ovulation, and embryonic development, and ultimately lead to a reduction in reproductive capacity. With the rapid development of intensive high-density breeding methods, breeding enterprises are increasingly demandin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K1/16A23K1/14A23K1/18
CPCY02P60/87
Inventor 计成马秋刚白秀梅
Owner ANHUI ZHONGSHENG PHARMA
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