Goose source lactobacillus plantarum and application thereof

Abstract

The invention provides a goose source lactobacillus plantarum ER41 (Lactobacillus plantarum ER41), and the preservation number of the goose source lactobacillus plantarum ER41 is CCTCC (China Center for Type Culture Collection) No:M 2021932. The lactobacillus plantarum ER41 has the following technical effects: 1) the lactobacillus plantarum ER41 can quickly produce acid, the pH value in 8 hours is reduced to 4.0 or below, the lactic acid yield in 24 hours is 165.87 mmol / L, and the lactobacillus plantarum ER41 is quick in acid production and strong in lactic acid production capacity; 2) the antibacterial effect on escherichia coli, staphylococcus aureus, salmonella and listeria monocytogenes is achieved; 3) the strain can more effectively adhere to epithelial cells of the goose intestinal tract and colonize in the goose intestinal tract; 4) the villus height of the jejunum, the ileum and the cecum can be increased, the crypt depth of the ileum and the cecum can be obviously reduced, the villus-implicit ratio of the cecum can be obviously increased, and the healthy development of intestinal mucosa can be promoted; 5) the content of acetic acid, propionic acid and other short-chain fatty acids in the intestinal tract can be increased, and the intestinal tract health is promoted; and 6) the abundance of escherichia coli shigella, enterococcus and other pathogenic bacteria can be remarkably reduced, the abundance of lactobacillus is increased, and the intestinal flora is adjusted.

Description

technical field [0001] The invention belongs to the technical field of probiotics in poultry feed, and specifically discloses a goose-sourced plant lactobacillus and an application thereof. Background technique [0002] In recent years, goose meat food has continued to be popular, and the large-scale breeding of meat goose has grown rapidly. The goose industry has become one of the important ways to promote the development of animal husbandry. However, after the implementation of policies such as "banning antibiotics and water breeding", intestinal diseases of meat geese increased and immunity decreased. The use of probiotics to regulate intestinal homeostasis, improve the barrier protection function of intestinal mucosal microorganisms, and enhance the host's intestinal health and resistance to stress are one of the hotspots of intestinal health research at home and abroad. [0003] Intestinal microbes will change with physiological factors such as differences in food type...

AI Technical Summary

Problems solved by technology

Chinese patent application CN106399196A provides a strain of Lactobacillus plantarum HEW-A490 and its application. The bacterial strain HEW-A490 is isolated from the chicken intestine, which significantly improves the growth performance of the chicken, but does not study the effect on the intestinal structure, intestinal bacteria The role of intestinal health such as colony, and the adhesion to animal intestinal cells are not mentioned

[0006] In terms of strain adhesion research, Chinese patent application CN109504619A provides a plantarum lactobacillus and its application, and Chinese patent application CN109706103A provides a plantarum lactobacillus RS-09 with high adhesion and its application. The strains PA01 and The RS-09 strain was isolated from plants such as kimchi and apple juice, and had strong adhesion to human colonic cells CAO-2 and HT-29, respectively. The adhesion to poultry intestinal cells was not mentioned, and the effect on intestinal The role of intestinal tract structure, intestinal flora, and intestinal metabolites

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