Pig-source lactic acid bacteria capable of improving growing performance of piggies and prebiotic combination product

Abstract

The invention provides pig-source lactic acid bacteria capable of improving growing performance of piggies and a prebiotic combination product. A preparation method of the pig-source lactic acid bacteria comprises the following steps of (1) separating bacterial strains from fresh pig manure, and performing identification; (2) inoculating agarslant-preservation target bacteria species to a liquid shake flask culture medium, and performing vibrating to a logarithmic phase; (3) performing inoculating in a fermentation tank, and performing culturing to a logarithmic growth phase; and (4) adding asuspending agent to the fermentation tank, so as to make the pig-source lactic acid bacteria microbial inoculum. The prebiotic combination product consists of the pig-source lactic acid bacteria microbial inoculum, clostridium butyricum, probiotic inulin, and probiotic fructo-oligosaccharide. According to the prebiotic combination product disclosed by the invention, the pig-source lactic acid bacteria microbial inoculum is adopted, so that the diarrhea rate of pigs can be reduced; and combined prebiotics can increase the growth rate of the pigs, the feed conversion rate is reduced, and in thefeeding process of the pigs, the usage amount of antibiotics is reduced.

Description

technical field [0001] The invention relates to the field of biotechnology, in particular to a combination product of pig-derived lactic acid bacteria and prebiotics for improving the growth performance of piglets. Background technique [0002] The latest definition of probiotics is "microorganisms that produce small molecular metabolic by-products, exert beneficial modulatory effects on host biological functions, and may have immunomodulatory effects". Prebiotics are "non-digestible fermentation substrates that selectively stimulate the composition, growth and activity of the gastrointestinal microbial flora, thereby improving the health of the host", and most prebiotics currently used are non-digestible oligosaccharides (2 to 10 monosaccharides formed by glycosidic bonds). Combining prebiotics and probiotics is a synbiotic. A single probiotic does not survive well in the digestive system, and the combination of probiotics and prebiotics into a synbiotic can produce a syn...

AI Technical Summary

Problems solved by technology

Hassanpour (2014) found that adding 0.1% and 0.2% synbiotics had different effects on the small intestine morphology of broilers, adding 0.1% levels of 22-day-old and 42-day-old broilers and adding 0.2% levels of 42-day-old broiler ten The height of duodenal villi increased significantly, but the jejunum of 22-day-old broilers supplemented with 0.1% and 0.2% levels and the height of ileum villi of 42-day-old broilers supplemented with 0.2% levels decreased significantly. The cause of the adverse effect is unclear

Images