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Controlled release type copper supplementing and its preparing method and use

A slow-release copper and copper supplement technology, applied in the direction of chemical instruments and methods, medical preparations containing active ingredients, applications, etc., can solve the problem of reducing the palatability and nutritional value of feed, gastrointestinal mucosal irritation, and resources Waste the environment and other issues, and achieve the effects of low production cost, improved absorption and utilization rate, and simple process flow

Inactive Publication Date: 2006-08-30
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the most commonly used copper source at home and abroad is copper sulfate, but the production and use of copper sulfate can cause the following problems: (1) The compatibility between copper sulfate and other ingredients in the feed is poor, and it can oxidize and destroy some nutrients in the feed, such as vitamins , grease or fat, etc., reducing the palatability and nutritional value of the feed; (2) Copper sulfate is irritating to the gastrointestinal mucosa, and long-term addition of copper at the level of pharmacological effects will cause toxicity and side effects to the body; (3) Modern nutritional formula In order to reduce the antagonism of copper to other essential mineral elements, the addition of zinc and iron in the diet is often increased accordingly, and a large amount of metal elements are discharged into the environment with the feces, resulting in waste of resources and environmental pollution.
In order to seek a high-efficiency copper source that can not only promote the growth of livestock and poultry, but also increase the bioavailability of copper and reduce the dosage of copper, many scholars have studied different types of copper sources such as copper citrate, copper lysine, and copper methionine in recent years. , copper amino acid chelate, copper proteinate, etc. have carried out a lot of useful research work, but the current literature reports show that it is not yet certain that this type of organic copper source can be used as an efficient copper source for animals

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] 1) Grinding the clinoptilolite produced in Jinyun, Zhejiang to 500 mesh, adding water and stirring evenly to make a suspension slurry with a concentration of 10%;

[0026] 2) Slowly add copper acetate with a copper content of 2% by weight of zeolite into the suspension slurry in step 1) under stirring, detect and adjust the pH value of the slurry to 3.0, and react at room temperature for 4 hours;

[0027] 3) The pH value of the detection step 2) is adjusted with 0.5moL / L sodium carbonate aqueous solution, so that the pH value of the slurry is 7.0; washed 4 times, filtered and dehydrated;

[0028] 4) The filter cake obtained in step 3) was dried and crushed to 600 meshes to obtain a controlled-release copper supplement, and the content of copper in the zeolite was 2% by weight percentage.

[0029] 96 piglets with a body weight of 7.8kg were divided into 4 groups according to the requirements of the feeding experiment. Each group had 3 replicates, and each replicate had 8...

Embodiment 2

[0032] 1) Grinding a commercially available ZSM-5 zeolite molecular sieve to 300 mesh, adding water and stirring evenly to make a suspension slurry with a concentration of 5%;

[0033]2) Slowly add copper chloride with a copper content of 5% by weight of zeolite into the suspension slurry in step 1) under stirring, detect and adjust the pH value of the slurry to 4.5, and react at room temperature for 6 hours;

[0034] 3) The pH value of the detection step 2) is adjusted with a 10moL / L aqueous sodium hydroxide solution to make the pH value of the slurry 7.5; washed with water for 3 times, filtered and dehydrated;

[0035] 4) The filter cake obtained in step 3) was dried and crushed to 300 meshes to obtain a controlled-release copper supplement, and the content of copper in the zeolite was 5% by weight percentage.

[0036] Effects of controlled and slow-release copper on growth and endocrine of broiler chickens:

[0037] The effect of controlled and slow-release copper on the g...

Embodiment 3

[0042] Preparation: Mesoporous molecular sieve MCM-41 was prepared according to the method of "Modification and Characterization of Mesoporous Molecular Sieve MCM-41 under Mild Conditions" (Zheng Shan, Gao Lian, Guo Jingkun. Journal of Inorganic Materials, 2000, 15(5): 844-848). 41.

[0043] 1) Grind the mesoporous molecular sieve MCM-41 obtained in the preparatory step to 300 mesh, add water and stir evenly, and make a suspension slurry with a concentration of 1%;

[0044] 2) Slowly add copper nitrate with a copper content of 10% by weight of MCM-41 into the suspension slurry in step 1) under stirring, detect and adjust the pH value of the slurry to 6.5, and react at room temperature for 10 hours;

[0045] 3) The pH value of the detection step 2) is adjusted with 5moL / L potassium hydroxide aqueous solution, so that the pH value of the slurry is 8.5; washed 5 times with water, and centrifuged for dehydration;

[0046] 4) The filter cake obtained in step 3) was dried and crush...

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PUM

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Abstract

The present invention discloses a controlled slowly-released copper-supplementing preparation, its preparation method and application. It is a zeolite containing active copper, the copper content in the zeolite is 1.5-10 wt%. Its preparation method uses copper salt and natural or synthetic zeolite as raw material and makes them undergo the following steps: adsorption, ion exchange reaction, filtration, drying and pulverization so as to obtain the invented zeolite containing active copper. It can be used as animal feed additive, also can be used for preparing human oral health-care product and medicine for supplementing copper.

Description

technical field [0001] The invention relates to a controlled and slow-release copper supplementation agent for copper, a preparation method and application. Background technique [0002] Copper is one of the essential trace elements for humans and animals. As a general essential nutrient element, pigs and chickens require 3-8 mg / kg of copper (NRC, 1994; 1998). The uniqueness of the trace element copper to livestock and poultry lies in the growth-promoting effect of adding high doses of copper (usually in the form of copper sulfate). At present, although the growth-promoting mechanism of high copper is not clear, high-dose copper has been widely used in animal husbandry as an efficient and cheap growth-promoting additive. At present, the most commonly used copper source at home and abroad is copper sulfate, but the production and use of copper sulfate can cause the following problems: (1) The compatibility between copper sulfate and other ingredients in the feed is poor, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B39/00A23K1/175A61K33/34A23K20/20
Inventor 夏枚生胡彩虹赵文艳
Owner ZHEJIANG UNIV
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