Additive of organic zinc feed and preparation method and use thereof

A technology of feed additive and organic zinc, which is applied in the field of organic zinc feed additive and its preparation and application, can solve the problems of destroying the integrity of intestinal cell membrane, reducing the utilization rate of feed, and oxidative damage of cells, so as to alleviate the adverse effects and improve the absorption rate. Improvement, fast absorption effect

Inactive Publication Date: 2009-09-16
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of high doses of zinc usually has the following problems: (1) low absorption
(4) There is mutual antagonism and synergy between the absorption and utilization of zinc, copper, calcium, iron, and selenium in the animal body. Excess or deficiency of any element will affect the normal absorption of other elements, and feed The increase of mineral elements in the body will definitely have a negative i

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Under stirring at 10°C, add chitosan with a deacetylation degree of 70% to 0.5% dilute acid by volume to form a 0.5% chitosan acid solution; then add zinc sulfate solution to the chitosan acid solution , wherein the quality of zinc sulfate is 1 / 4 to 30 times that of chitosan, reacted for 0.5h, filtered, and the obtained solid matter was washed with distilled water for several times until no zinc ions were detected, dried and crushed to obtain organic zinc Feed additives.

Embodiment 2

[0016] Under stirring at 60°C, add chitosan with a deacetylation degree of 100% to 2% dilute acid by volume to form a 10% chitosan acid solution; then add zinc nitrate solution to the chitosan acid solution , wherein the mass of zinc nitrate is 30 times that of chitosan, reacted for 15 hours, centrifuged at 3000rpm, and the precipitate obtained was washed with distilled water for several times until no zinc ions were detected, dried and pulverized to obtain the organic zinc feed additive.

Embodiment 3

[0018] Under stirring at 20°C, add chitosan with a deacetylation degree of 86% to 1% hydrochloric acid to prepare a 1% chitosan acid solution, and then add zinc nitrate solution to the chitosan acid solution, wherein the mass of zinc nitrate is the shell 5 times the mass of the polysaccharide, reacted for 15 hours, centrifuged at 3000rpm, the sediment was washed with distilled water for several times until no zinc ions were detected, dried and pulverized to obtain the organic zinc feed additive.

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PUM

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Abstract

The invention discloses an additive of organic zinc feed and preparation method and use thereof. The method comprises the steps of: stirring under 10 to 60 degrees centigrade, adding chitosan with deacetylation being 70 to 100% into diluted acid with volume percent density being 0.5 to 2% to be 0.5 to 10% chitosan acid solution; then adding inorganic zinc solution into the chitosan acid solution; wherein the content of the inorganic zinc is 1/5 to 30 times of the content of the chitosan; reacting for 0.5 to 15 hours, separating, washing the obtained solid substances for many times until checking out the ions free of zinc, drying, crashing to obtain the additive of organic zinc feed. The invention provides a simple method of preparing the additive of organic zinc feed, which has stable quality and is widely popularized and applied. The additive can be used as the additive for zinc for livestock, birds, aquatic animals and experimental animals. The additive has high biological availability and can save sources and protect the environment and can be sued as an immune dose for improving the resistance against diseases of the animals.

Description

technical field [0001] The invention relates to an organic zinc feed additive and its preparation method and application. Background technique [0002] Zinc is an essential trace element for animals. It is closely related to many basic physiological activities of animals and plays an important role in maintaining the health and normal physiological functions of animals. It has been proved that zinc participates in the composition of more than 300 enzymes and functional proteins in animals. It is also found that zinc is closely related to the immune function of the body. It participates in the development of immune organs, affects the performance of specific and non-specific immune functions, and is of great significance in maintaining the normal immune function of the body and preventing the invasion of bacteria and parasites. The physiological and biochemical functions of zinc are very extensive. It not only participates in the metabolism of DNA, RNA, protein, sugar, lipid,...

Claims

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Application Information

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IPC IPC(8): A23K1/16A23K20/163A23K20/20
Inventor 韩新燕许梓荣
Owner ZHEJIANG UNIV
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