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Fat composition for reducing immunological stress of pigs and application of fat composition

A technology of fat composition and stress, which is applied in the field of animal husbandry or feed, can solve the problems of unsatisfactory immune stress response and other problems, and achieve the effects of promoting healthy and sustainable development, reducing use, and alleviating the increase of related hormone content

Inactive Publication Date: 2015-12-09
WUHAN POLYTECHNIC UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These measures have a good effect on alleviating stress caused by transportation, environmental changes, etc. However, the effect on alleviating immune stress response is not ideal

Method used

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  • Fat composition for reducing immunological stress of pigs and application of fat composition
  • Fat composition for reducing immunological stress of pigs and application of fat composition
  • Fat composition for reducing immunological stress of pigs and application of fat composition

Examples

Experimental program
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Effect test

Embodiment 1

[0015] Fish oil and caprylic acid glyceride are combined according to the weight ratio of 3:1, and mixed evenly to obtain a fat composition for reducing immune stress of pigs, and the added amount accounts for 4% of the weight of the complete feed. The effect of the fat composition on the immune stress caused by the classical swine fever vaccine was studied through a weaned piglet experiment.

[0016] A total of 72 healthy weaned piglets with similar body condition (Duroc × Landrace × Large White, average body weight 8.0±0.6kg) were selected and randomly divided into 3 groups according to the principle of similar body weight, with 6 replicates in each group and 4 pigs in each replicate. The test period is 20 days. The basal diet was formulated according to the nutritional requirements of piglets in NRC (1998). The three treatments were: ① control group (4% corn oil group); ② vaccine group (4% corn oil group+vaccine); ③ fat composition group+vaccine (4% fat composition+vaccine...

Embodiment 2

[0022] Combining fish oil and caprylic acid glyceride according to the weight ratio of 4:1, and mixing the composition evenly to obtain a fat composition for reducing immune stress of pigs, the added amount accounts for 4% of the weight of the complete feed. The effect of the fat composition on the immune stress caused by Escherichia coli LPS was studied through a weaned piglet experiment.

[0023] A total of 72 weaned piglets (Duroc × Landrace × Large White, average body weight 9.5±0.8kg) with similar healthy body condition were selected and randomly divided into 3 groups according to the principle of similar body weight, with 6 replicates in each group and 4 pigs in each replicate. The test period is 21 days. The basal diet was formulated according to the nutritional requirements of piglets in NRC (1998). The three treatments were: ① control group (4% corn oil group); ② LPS group (4% corn oil group+LPS); ③ fat composition group+LPS (4% fat composition+LPS). Both groups ① a...

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Abstract

The invention discloses a fat composition for reducing the immunological stress of pigs and application of the fat composition. The fat composition is composed of fish oil and caprylic capric triglycerride with the weight ratio of (2.5-5):1. A use method is that the addition amount of the fat composition is 2-4% of the total weight of the pig feed. The fat composition provided by the invention has the following outstanding advantages: compared with the conventional grease (such as corn oil), the fat composition not only can serve as a raw material for preparing high-energy feed, but also can effectively alleviate the allergic reaction and increased body temperature caused by vaccine (such as hog cholera vaccine) or lipopolysaccharide (LPS) of coli bacillus, as well as the content rise of hormones, related to the stress of hypothalamus-pituitary gland-hypothalamic pituit-aryadvenal axis, in blood, and improve the productivity of the pigs.

Description

technical field [0001] The invention belongs to the technical field of animal husbandry or feed, and in particular relates to a fat composition for reducing pig immune stress and application thereof. Background technique [0002] Immune stress has had a severe impact on the swine industry and caused great economic losses. Immune stress usually means that after animals are vaccinated with vaccines (such as foot-and-mouth disease, swine fever, etc. vaccines), while the body produces an immune response, it also suffers a certain degree of damage, such as individual allergies, a few elevated body temperatures, most anorexia, and metabolic changes. , slowed growth and prolonged feeding cycle. In the modern pig industry, vaccines play an important role in the prevention and control of infectious diseases. On the one hand, immunization protects the animal body from pathogens, and on the other hand, it also acts as a special stress factor to cause immune stress. It causes certain ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K1/18A23K1/16
Inventor 刘玉兰朱惠玲康萍
Owner WUHAN POLYTECHNIC UNIVERSITY
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