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Novel feed additive and preparation method thereof

A feed additive and new technology, applied in animal feed, animal feed, application and other directions, can solve the problems of endangering animal body and human health, high disease recurrence rate, decreased immunity, etc. Simple process and the effect of promoting weight gain

Inactive Publication Date: 2013-11-13
江西华农恒青农牧有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the prevention and treatment of animal diseases are basically still a large number of antibiotics, but due to long-term and large-dose use of antibiotics, various disadvantages such as drug resistance, flora imbalance, decreased immunity, high disease recurrence rate, and drug residues are becoming more and more serious. , seriously endangering animal organisms and human health

Method used

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  • Novel feed additive and preparation method thereof
  • Novel feed additive and preparation method thereof
  • Novel feed additive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The extraction of embodiment 1 astragalus polysaccharide

[0022] 1) Pretreatment of Radix Astragali root: select astragalus roots without moth and mildew, rinse and dry, dry crush with high-speed pulverizer (3400 rpm), and pass through a 60-mesh sieve;

[0023] 2) Leaching: add 5-8 times the amount of CaO solution of PH9-10 to Astragalus root powder, leaching at 62-68°C for 1-3 hours, filter with 4 layers of gauze, and use the same method to leaching the filter residue Extract 3 times, combine the filtrates, adjust the pH to 6-7, heat and concentrate until nearly saturated to obtain an extract.

[0024] 3) Alcohol analysis: Cool the extract to room temperature or lower, add 2 times the volume of 95% alcohol with stirring at an appropriate speed, and the astragalus polysaccharide precipitates out. After standing for 2 hours, the polysaccharide sank to the bottom of the container, centrifuged to separate the precipitate, put the precipitate into a desiccator, freeze and...

Embodiment 2

[0025] Example 2 Preparation of the novel feed additive of the present invention and its application in piglet feed.

[0026] Preparation of the novel feed additive of the present invention: the astragalus polysaccharide prepared in Example 1 is mixed with lysozyme and the carrier in the following weight ratio: 25% astragalus polysaccharide, 2.5% lysozyme, 24% soluble starch, and 24% light calcium carbonate , Second powder 24.5%.

[0027] Experimental Animals and Experimental Design: 120 piglets of 35 days old, similar in age at birth, and weighing about 9 kg were selected, and then divided into four groups, with three replicates in each group, and 10 piglets in each replicate. Body weight differences between groups and between replicates did not exceed 5% of mean body weight. The pre-feeding was 3 days, and the trial period was 30 days.

[0028] Test diet:

[0029] Control group: corn-soybean meal based diet

[0030] Experimental group 1: add 40g / T of colistin sulfate and...

Embodiment 3

[0043] Example 3 Preparation of the novel feed additive of the present invention and its application in feed for growing pigs.

[0044] Preparation of the novel feed additive of the present invention: the astragalus polysaccharide prepared in Example 1 is mixed with lysozyme and the carrier in the following weight ratio: 25% astragalus polysaccharide, 2.5% lysozyme, 24% soluble starch, and 24% light calcium carbonate , Second powder 24.5%.

[0045] Experimental animals and experimental design: 108 Dudu hybrid pigs with similar body weight, weighing about 40 kg, were selected, and then divided into three groups, with three repetitions in each group, and 12 pigs in each repetition. Body weight differences between groups and between replicates did not exceed 5% of mean body weight. The pre-feeding was 3 days, and the trial period was 28 days.

[0046] Experimental diet: The corn-soybean meal type diet was used as the basic diet.

[0047] Control group: corn-soybean meal based ...

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Abstract

The invention relates to a novel feed additive which contains lysozyme, astragalus polysaccharide and a carrier, wherein the weight ratio of the lysozyme, the astragalus polysaccharide and the carrier is 1:(4-20):(29-45). The novel feed additive disclosed by the invention is prepared by compounding the lysozyme and the astragalus polysaccharide for the first time, has and is increased in the advantages of both astragalus polysaccharide and lysozyme, achieves the effect better than the effect obtained by independently adding the astragalus polysaccharide and the lysozyme, can remarkably promote the weight gain, improve the feed conversion ratio and enhance the immunity and the disease resistance, has multiple effects of treatment, prevention, health care and immunity enhancement, accounts for 0.05%-0.1% of feeds in addition amount in use, can replace antibiotics and has the advantages of wide antibacterial spectrum, remarkable disease-resistant growth-promoting effect, greenness, safety, no drug resistance, no drug residue, simple preparation process and suitability for industrialized production.

Description

technical field [0001] The invention relates to a novel feed additive, in particular to a preparation method of a feed additive capable of effectively enhancing animal immune function and growth-promoting function by combining lysozyme and astragalus polysaccharide and its application in pig feed. Background technique [0002] In recent years, the incidence of livestock and poultry diseases has been increasing day by day, and the death rate caused by diseases has increased year by year, causing major economic losses to animal husbandry. At present, the prevention and treatment of animal diseases are basically still a large number of antibiotics, but due to long-term and large-dose use of antibiotics, various disadvantages such as drug resistance, flora imbalance, decreased immunity, high disease recurrence rate, and drug residues are becoming more and more serious. , seriously endangering animal organisms and human health. In the past 20 to 30 years, a series of problems ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K1/16A23K1/165
Inventor 廖细古张静波
Owner 江西华农恒青农牧有限公司
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