Sulfur-supported feedstuff addictive and preparation method thereof

A feed additive and elemental sulfur technology, applied in the field of hydrotalcite-loaded elemental sulfur and its preparation, can solve problems such as disease outbreaks, cross-infection of pathogenic bacteria, economic losses of farmers, etc., and achieve inhibition of proliferation, uniform and stable dispersion, and good biophase Effects of capacitative and gastrointestinal mucosal affinity

Inactive Publication Date: 2006-09-06
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

However, in the current breeding industry, due to the complexity of pathogenic bacteria and cross-infectio

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Preparation: According to "Oral Vanadium Supplement Using Bimetal Oxide as Carrier and Its Preparation and Use" (see: Ye Ying, Feng Lujia, Zheng Libo, Shen Zhongyue, Han Jie, Chen Zhifei, Li Shanshan. National Invention Patent Authorization Announcement No. The method of CN 1187091C) prepares hydrotalcite.

[0024] 1) Grind the hydrotalcite obtained in the preliminary step to 400 mesh, add water and stir to make a suspension slurry with a concentration of 10%:

[0025] 2) Sulfur content is the sodium sulfite of hydrotalcite weight 1% and the sodium sulfide that the molar ratio is 2 times of sodium sulfite, slowly add in the suspension slurry of step 1) under stirring, then add the dilute sulfuric acid that molar concentration is 0.5moL / L , adjust pH=3.0, and react at room temperature for 5 hours;

[0026] 3) centrifugal dehydration of the suspension slurry in step 2);

[0027] 4) drying and pulverizing the filter cake obtained in step 3) to 300 meshes to obtain a load...

Embodiment 2

[0029] Preparation: according to the method of "a method for preparing bimetallic oxides and hydrotalcite" (see: Ye Ying, Li Shanshan, Chen Zhifei, Zheng Libo, Huang Xia, Wu Daidai, Han Jie, Zhang Weirui. National Invention Patent Authorization Announcement No. CN 1222467C) Preparation of hydrotalcite.

[0030] 1) Grind the hydrotalcite obtained in the preliminary step to 500 mesh, add water and stir to make a suspension slurry with a concentration of 5%:

[0031] 2) Sodium bisulfite that the sulfur content is 5% by weight of hydrotalcite and the sodium sulfide that the molar ratio is 2 times of sodium bisulfite are slowly added in the suspension slurry of step 1) under stirring, and the molar concentration is 1.5 MoL / L of dilute sulfuric acid, adjust pH=5.0, and react at room temperature for 8 hours;

[0032] 3) the suspension slurry of step 2) is filtered and dehydrated;

[0033] 4) drying and pulverizing the filter cake obtained in step 3) to 400 meshes to obtain a loaded...

Embodiment 3

[0035] 1) Grind commercially available hydrotalcite to 500 mesh, add water and stir evenly to prepare a suspension slurry with a concentration of 1%:

[0036] 2) The sulfur content is the sodium sulfite heptahydrate (Na 10% by weight of hydrotalcite); 2 SO 3 ·7H 2 0) and the sodium sulfide that molar ratio is 2 times of sodium sulfite, slowly add in the suspension slurry of step 1) under stirring, then add the dilute sulfuric acid that molar concentration is 1.5moL / L, adjust pH=4.0, and react at room temperature for 10 hours;

[0037] 3) the suspension slurry of step 2) is filtered and dehydrated;

[0038]4) drying and pulverizing the filter cake obtained in step 3) to 400 meshes to obtain a loaded elemental sulfur feed additive. The content of sulfur in hydrotalcite is 10%.

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PUM

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Abstract

The invention discloses feed addictive carrying sulfur and the method for preparing the same, with hydrotalcite carrying sulfur, and the sulfur content in hydrotalcite is 1-10% by weight percent. The invention takes hydrotalcite as micro-reactor and reduces SO32- with S2- to sulfur. The invention makes use of the nanometer channel structure of hydrotalcite as reactor, so the sulfur granule is small, and the dissipation is uniform and stable. The product is characterized by high sterilizing and disinfection effect and the hydrotalcite can release sulfur slowly because of the features it possesses: bio-availability, compatibility to gastrointestinal tract mucosa, commutativity between layers, high surface activity and large specific surface area. The product can effectively inhibit the propagation of enteric pathogenic bacteria and improve animal production capability.

Description

technical field [0001] The invention relates to a loaded elemental sulfur feed additive and a preparation method thereof, in particular to a hydrotalcite loaded elemental sulfur and a preparation method thereof. Background technique [0002] The long-term use of antibiotics and antibacterial drugs has caused adverse consequences such as bacterial drug resistance, drug resistance gene transfer, drug residues in animal products, and ecological balance disorders, directly or indirectly threatening human health. In recent years, some countries and regions have formulated corresponding laws and regulations to strictly control or prohibit the use of antibiotics in livestock and poultry breeding. However, in the current aquaculture industry, due to the complexity and cross-infection of pathogenic bacteria, if antibiotics are not used, it is easy to cause disease outbreaks and bring economic losses to farmers. Therefore, the development of safe and pollution-free new antibacterial ...

Claims

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Application Information

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IPC IPC(8): A23K1/16A23K20/20A23K20/24
Inventor 夏枚生胡彩虹潘金敏
Owner ZHEJIANG UNIV
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