Feed additive for improving pigling intestinal canal function and immunity function, and use method thereof

A feed additive and intestinal function technology, applied in the field of animal husbandry, can solve problems such as threats to human health and food hygiene and safety, increased dosage of pharmaceuticals, emergence of drug-resistant strains, etc., to improve health level and weaning weight, and improve feed conversion. rate, the effect of reducing the rate of diarrhea

Inactive Publication Date: 2008-06-11
INST OF ANIMAL HUSBANDRY & VETERINARY FUJIAN ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Adding antibiotics to feed is currently one of the most commonly used and effective measures to prevent intestinal diseases and prevent post-weaning diarrhea, but its long-term use can easily lead to the emergence of drug-resistant strains, leading to the development of drug resistance in pathogenic bacteria, thus

Method used

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preparation example Construction

[0015] B. Preparation of Feed Additives

[0016] After Agaricus blazei strains are fermented, the fermented liquid and wheat bran are mixed in a weight ratio of 0.2 to 5:1, then freeze-dried to a water content of 12 to 14%; crushed to a particle size of 0.7 to 1 mm to obtain a powdery composite additive .

[0017] C. Application of feed additives

[0018] The powdery compound additive is added to pig compound feed, pig concentrated feed, pig premix or other pig feed additives, and mixed evenly, and the added amount is equivalent to 0.05-2% by weight of the compound feed. Feeding piglets can enhance their intestinal function and immune function, significantly reduce the diarrhea rate of piglets, increase daily weight gain, improve feed conversion rate, and improve piglet health and weaning weight.

[0019] The above-mentioned pig compound feed, pig concentrated feed, pig premix or other pig feed additives are commercially available products.

[0020] The strain used is Agari...

Embodiment

[0023] ATCC76739 was used for cultivation and fermentation, and the preservation medium was PDA medium. For seed medium, take 200g of peeled potatoes, cut them into small pieces, add 1000mL of water to boil for 30min, filter out the potato pieces, make up the filtrate to 1000mL, add 20g of sucrose, sterilize at 121℃ for 30min at natural pH; seed culture conditions: use Put 25-70mL seed culture medium in a 250mL triangular bottle, sterilize and cool according to the conventional method; use an inoculation hook to cut out broad bean-sized mycelium pieces from the mother seed in the test tube, inoculate them in a 250mL shaker flask with a liquid volume of 30-100mL, and inoculate at 25 ℃, 150rpm.min -1 , Cultivate for 72 hours, until the mycelium is evenly covered in the medium, it can be used as a seed culture solution. Fermentation medium composition: corn flour 30g / L, bran 10g / L, sucrose 20g / L, yeast extract 1g / L, (NH 4 ) 2 SO 4 1g / L, MgSO 4 1g / L, KH 2 PO 4 1g / L, V B1...

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Abstract

The invention relates to a feed additive which is capable of promoting intestinal function and immunologic function of piglets, wherein agaricus blazei murrill is used as strains, a fermentation medium which comprises a carbon source, a nitrogen source and inorganic salt is used to ferment and culture, the obtained things are mixed, froze and dried according to the weight radio of fermentation broth, which is 0.2-5:1. The using method is that based on compound feed of pigs, concentrated feed of pigs, pig premix or other feed additive of pigs, 0.05-2 percent of the feed additive which is capable of promoting intestinal function and immunologic function of piglets is added to feed, thereby being capable of obviously reducing the diarrhea rate of the piglets, improving the daily gain, increasing the conversion rate of feed, and increasing the health level and weaning weight of piglets. Through being tested by various tests and laboratories, the additive not only is efficient and safe but also is non-toxic, animal products for feeding accord with the requirements of food hygiene.

Description

technical field [0001] The invention belongs to the field of animal husbandry, and more specifically relates to a feed additive for improving intestinal function and immune function of piglets and a use method thereof. Background technique [0002] Early weaning of piglets is an inevitable trend in the development of the pig industry. However, given the current domestic production level, the main difficulty in promoting early weaning technology on a large scale is how to effectively prevent post-weaning diarrhea. Adding antibiotics to feed is currently one of the most commonly used and effective measures to prevent intestinal diseases and prevent post-weaning diarrhea, but its long-term use can easily lead to the emergence of drug-resistant strains, leading to drug resistance of pathogenic bacteria, which forces the dosage of drugs to increase day by day. Long-term high-dose feeding of antibiotics causes residues in livestock to seriously threaten human health and food hygie...

Claims

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Application Information

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IPC IPC(8): A23K1/18A23K1/17C12N1/14A23K20/195
Inventor 张龙涛沈恒胜
Owner INST OF ANIMAL HUSBANDRY & VETERINARY FUJIAN ACADEMY OF AGRI SCI
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