Selenium-enriched lactic acid bacterium biological feed additive and preparation method thereof

Abstract

The present invention discloses a selenium-enriched lactic acid bacterium biological feed additive which is prepared from the following raw materials in mass percentages: 80-90% of rice bran, 7-15% of lactic acid bacteria, and 2-5% of sodium selenite. The preparation method is as follows: firstly the raw materials are weighed according to the raw material mass percentage, then rice bran is sterilized and canned, the lactic acid bacteria and the sodium selenite are added into the canned rice bran and mixed evenly, and the mixture is subjected to an anaerobic fermentation, the fermented mixture is dried at a low temperature, and then the dried mixture is pulverized and prepared into the selenium-enriched lactic acid bacterium biological feed additive. The selenium-enriched lactic acid bacterium biological feed additive can improve the gastrointestinal tract environment, increase beneficial bacterium flora, promote gastrointestinal digestion and absorption, reduce diarrhea, improve animal immunity, especially reduce the morbidity and mortality of piglets, and bring larger economic benefits to farmers.

Description

technical field [0001] The invention belongs to the technical field of microbial fermentation, and in particular relates to a selenium-enriched lactic acid bacteria biological feed additive and a preparation method thereof. Background technique [0002] In recent years, with the improvement of people's living standards, the demand for meat is increasing day by day, and the voice of green food is getting higher and higher. However, in pig breeding, in order to shorten the breeding cycle, reduce mortality, and reduce costs, most farmers will choose to add antibiotics, antibacterial drugs and other drugs to the feed, resulting in the emergence of drug resistance or drug resistance in pigs. Reduced function, decreased disease resistance, and antibiotic residues in pork. And in breeding process, if do not use medicines such as antibiotics, be unfavorable for its growth again for piglet, make the phenomenon that piglet is easy to die happens from time to time. [0003] With the ...

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Problems solved by technology

[0004] The object of the present invention is to provide a kind of selenium-enriched lactic acid bacteria biological feed additive, aiming at solving the problem of adding antibiotics, antibacterial drugs and other drugs to feed in pig breeding in the prior art to cause drug resistance or drug resistance of pigs and not using antibiotics and antibacterial drugs and other drugs cause piglets to die easily

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