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Trace element premix for reducing the proliferation and invasion of Salmonella Enteritidis in laying hens and its preparation method

A Salmonella Enteritidis premix technology, which is applied in animal feed, additional food elements, applications, etc., can solve the problems of bacterial strains that are prone to drug resistance and vaccine production can not keep up, so as to reduce the positive rate of Salmonella, reduce the number, improve The effect of immune function

Inactive Publication Date: 2019-02-05
SICHUAN AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a premix that reduces the proliferation and invasion of Salmonella Enteritidis in laying hens, so as to solve the problem that antibiotics are used in the prevention and control of Salmonella to make bacterial strains prone to drug resistance, and the production of vaccines cannot keep up with the change of Salmonella serotypes. , the present invention improves animal immunity through nutritional means, regulates the distribution of nutrients between the host and pathogenic bacteria, and inhibits the proliferation and invasion of Salmonella enteritidis

Method used

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  • Trace element premix for reducing the proliferation and invasion of Salmonella Enteritidis in laying hens and its preparation method
  • Trace element premix for reducing the proliferation and invasion of Salmonella Enteritidis in laying hens and its preparation method
  • Trace element premix for reducing the proliferation and invasion of Salmonella Enteritidis in laying hens and its preparation method

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preparation example Construction

[0041] The present invention also provides a preparation method of a premix for reducing the proliferation and invasion of Salmonella Enteritidis in laying hens, comprising the following steps:

[0042] Step 1. Weighing: Weigh the following components by mass percentage: ferrous fumarate 2%-4%, ferrous lactate 2%-4%, methionine chelated zinc 3%-7%, zinc propionate 3% -7%, methionine chelated manganese 8%-12%, copper sulfate 1%-2%, cobalt acetate 0.1%-0.3%, sodium selenite premix 0.5%-1.5%, potassium iodide premix 3%- 5%, magnesium sulfate 18%-22%, calcium carbonate 45%-50%, the total mass of the above is 100%.

[0043] Step 2. Fully mix the above components under normal temperature and dry conditions, the mixing time should not exceed 30 minutes, and the mixing uniformity should reach more than 90%.

[0044] Step 3. The mixed premix product is sealed and stored in a vacuum state to prevent oxidation and moisture regain.

[0045] Salmonella Enteritidis phage type 4 is the mai...

Embodiment 1

[0055] A preparation method of a premix for reducing the proliferation and invasion of Salmonella Enteritidis in laying hens, comprising the following steps: weighing the following components according to mass percentage: ferrous fumarate 3%, ferrous lactate 3%, methionine chelated zinc 5% %, zinc propionate 5%, methionine chelated manganese 10%, copper sulfate 1.5%, cobalt acetate 0.2%, sodium selenite premix (containing 0.45% selenium) 1%, potassium iodide premix (containing 1% iodine) ) 4%, magnesium sulfate 20%, calcium carbonate 47.3%, the total mass of the above is 100%. The above components are fully mixed under normal temperature and dry conditions, and the mixing time cannot exceed 30 minutes, and the mixing uniformity reaches more than 90%. The mixed premix product is sealed and stored in a vacuum state to prevent oxidation and moisture regain.

Embodiment 2

[0057] A preparation method of a premix for reducing the proliferation and invasion of Salmonella Enteritidis in laying hens, comprising the following steps: weighing the following components according to mass percentage: 2% of ferrous fumarate, 4% of ferrous lactate, 7% of methionine chelated zinc %, Zinc Propionate 3%, Methionine Chelated Manganese 8%, Copper Sulfate 2%, Cobalt Acetate 0.1%, Sodium Selenite Premix 1.5%, Potassium Iodide Premix 3%, Magnesium Sulfate 22%, Calcium Carbonate 47.4 %, the total mass above is 100%. The above components are fully mixed under normal temperature and dry conditions, and the mixing time cannot exceed 30 minutes, and the mixing uniformity reaches more than 90%. The mixed premix product is sealed and stored in a vacuum state to prevent oxidation and moisture regain.

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Abstract

The invention discloses a premix capable of reducing propagation and invasion of Salmonella Enteritidis phage type 4 in a laying hen. The premix comprises, by mass, ferrous fumarate, ferrous lactate, zinc methionine chelate, zinc propionate, manganese methionine chelate, copper sulphate, cobalt acetate, a sodium selenite premix, a potassium iodide premix, magnesium sulfate and calcium carbonate. The invention also discloses a preparation method for the premix capable of reducing propagation and invasion of Salmonella Enteritidis phage type 4 in the laying hen. The additive premix can provide trace element nutritional components needed by the laying hen and reduce the positive rate of almonella Enteritidis phage type 4 in laying hens of common chicken flocks; and the proportion of salmonella-positive eggs is reduced by 20 to 30%, and the course that the excrement of the laying hen carries Salmonella Enteritidis phage type 4 is shorted by 7 to 14 d.

Description

technical field [0001] The invention belongs to the technical field of animal feed, in particular to a trace element premix for reducing the proliferation and invasion of Salmonella Enteritidis in laying hens, and the invention also provides a preparation of a trace element premix for reducing the proliferation and invasion of Salmonella Enteritidis in laying hens method. Background technique [0002] Salmonella (Salmonella Enteritidis phage type 4) is one of the main pathogenic bacteria that endanger the production of laying hens. Salmonella infection of laying hens not only leads to intestinal inflammation, diarrhea and decreased production performance, but also the food safety problems caused by Salmonella-carrying laying hens and their products have become a hotspot in human public health. At present, antibiotics and vaccines are mainly used in the production of laying hens to prevent and treat Salmonella infection. However, because antibiotics make the strains prone to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23K50/75A23K20/00A23K20/20A23K20/24
Inventor 白世平彭佳龙张克英丁雪梅王建萍曾秋凤彭焕伟潘淑勤玄月宿卓薇
Owner SICHUAN AGRI UNIV
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