PSVI-8 Effects of Dietary Supplementation of Pediococcus Pentosaceus Strains Isolated from White Kimchi in Weaned Piglet Challenged with Escherichia Coli and Salmonella Typhimurium

Abstract Escherichia coli and Salmonella typhimurium infections in pigs are major source associated with enteric disease such as post-weaning diarrhea. Lactic acid bacteria, one of the most essential probiotics, can colonize the digestive tract and increase nutritional digestion and maintain the stability of the intestinal flora. The aim of this study was to investigate the effects of Pediococcus pentosaceus in weaned piglets challenged with pathogen bacteria. In exp.1, 90 weaned piglets with initial body weights of 8.53 ± 0. 34 kg were assigned to 15 treatments for 2 weeks. The experiments were conducted two trials in a 2 × 5 factorial arrangement of treatments consisting of two levels of challenge (challenge and non-challenge) with E.coli and Salmonella typhimurium, respectively and five levels of probiotics (Control, Lactobacillus plantarum, Pediococcus pentosaceus SMFM2016-WK1, Pediococcus acidilactici K, Lactobacillus reuteri PF30). In exp.2 a total of 30 weaned pigs (initial body weight of 9.84 ± 0. 85kg) were used in 4 weeks experiment. Pigs were allocated to 5 groups in a randomized complete way with 2 pens per group and 3 pigs per pen. Supplementation of Lactobacillus plantarum and Pediococcus pentosaceus SMFM2016-WK1 improved (P < 0.05) growth performance, intestinal pathogen bacteria counts compared with control group in exp.1. Also, Lactobacillus plantarum and Pediococcus pentosaceus SMFM2016-WK1 improved (P < 0.05) fecal noxious odor, diarrhea incidence and digestibility of crude protein and gross energy compared with control group in exp.2. In conclusion, supplementation of 38W strains isolated from white kimchi can act as probiotics by inhibiting E.coli and Salmonella typhimurium.