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Identification And Antimicrobial Susceptibility Of Lactic Acid Bacteria From Fecal Samples Of Indigenous And Commercial Pigs, Wandee Sirichokchatchawan, Somboon Tanasupawat, Waree Niyomtham, Nuvee Prapasarakul

The Thai Journal of Veterinary Medicine

Lactic acid bacteria (LAB) are currently applied as probiotics due to their benefit to pig performance. This study aimed to identify candidate LAB from pig feces and determine their antimicrobial susceptibility following an international standard recommendation. A total of 204 LAB isolates from 60 fecal samples of 30 antibiotic-free healthy fattening indigenous pigs and 30 antibiotic-free healthy fattening commercial pigs were initially screened for viability in acidic and bile conditions. Thirty-four of the isolates as acid- and bile-tolerant LAB were selected for identification and determination of antimicrobial susceptibility. They were characterized and identified by a set of 26 phenotypic tests, …