Characterization and anti-salmonella activities of lactic acid bacteria isolated from cattle faeces

BMC Microbiology
Adewale AdetoyeFunmilola A Ayeni

Abstract

Non typhoidal salmonellosis is one of the neglected zoonoses in most African countries. The use of sub-therapeutic doses of antibiotics as animal growth promoter enhances the emergence and dissemination of antimicrobial resistance in bacteria with food animal reservoirs and may also results in antibiotics residue in animal products. One promising alternative to antibiotics in animal feed is Lactic Acid Bacteria (LAB) as probiotics. This study was carried out to determine the anti-salmonella activities and suitability of LAB isolated from cattle faeces in Nigeria as potential probiotics in cattle feed. The test Salmonella enterica spp strains and LAB were isolated from cattle faeces and identified by MALDI-TOF MS and partial sequencing of 16S rRNA genes respectively. The anti-salmonella activities of the isolated LAB in co-culture, cell-free supernatant, inhibition of growth by viable LAB cells and quantification of organic acids were determined by standard techniques. The ability of the LAB strains to withstand gastric conditions, antibiotic susceptibility and their haemolytic ability on blood agar were also determined. A total of 88 LAB belonging to 15 species were isolated and identified from cattle faeces. The most abundant ...Continue Reading

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Citations

Jul 30, 2020·BMC Microbiology·Taohong ChenYulong Yin
Jul 14, 2020·Frontiers in Bioengineering and Biotechnology·Yang ShiZhongke Sun
Oct 30, 2020·Bioscience of Microbiota, Food and Health·Duygu Alp, Hakan KuleaŞan
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Dec 24, 2021·Archives of Microbiology·Katarzyna Marchwińska, Daniela Gwiazdowska

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Methods Mentioned

BETA
PCR
High Performance

Software Mentioned

BLAST
MEGA

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