Defined Pig Microbiota Mixture as Promising Strategy against Salmonellosis in Gnotobiotic Piglets

Autor: Nikol Modrackova, Kristyna Horvathova, Chahrazed Mekadim, Igor Splichal, Alla Splichalova, Ahmad Amin, Jakub Mrazek, Eva Vlkova, Vera Neuzil-Bunesova
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Animals, Vol 14, Iss 12, p 1779 (2024)
Druh dokumentu: article
ISSN: 2076-2615
DOI: 10.3390/ani14121779
Popis: Probiotics are a potential strategy for salmonellosis control. A defined pig microbiota (DPM) mixture of nine bacterial strains previously exhibited probiotic and anti-Salmonella properties in vitro. Therefore, we evaluated its gut colonization ability and protection effect against S. typhimurium LT2-induced infection in the gnotobiotic piglet model. The DPM mixture successfully colonized the piglet gut and was stable and safe until the end of the experiment. The colon was inhabited by about 9 log CFU g−1 with a significant representation of bifidobacteria and lactobacilli compared to ileal levels around 7–8 log CFU g−1. Spore-forming clostridia and bacilli seemed to inhabit the environment only temporarily. The bacterial consortium contributed to the colonization of the gut at an entire length. The amplicon profile analysis supported the cultivation trend with a considerable representation of lactobacilli with bacilli in the ileum and bifidobacteria with clostridia in the colon. Although there was no significant Salmonella-positive elimination, it seems that the administered bacteria conferred the protection of infected piglets because of the slowed delayed infection manifestation without translocations of Salmonella cells to the blood circulation. Due to its colonization stability and potential protective anti-Salmonella traits, the DPM mixture has promising potential in pig production applications. However, advanced immunological tests are needed.
Databáze: Directory of Open Access Journals
Nepřihlášeným uživatelům se plný text nezobrazuje