Microbial diversity and succession pattern in the ileum of nursing philippine native swine

Abstract

© 2019, University of the Philippines at Los Banos. All rights reserved. The Philippine native swine (PNS) has been widely purported as more robust and more disease-resistant breed than white crossbreeds or hybrids. Despite the well-documented contributions of gut microbiota to overall health and productivity of swine, there is a dearth of information on microbial composition of gut of PNS. In this study, microbial diversity in ileum of nursing PNS at 7-, 14-, 21-, and 28-dayold was determined by analysis of 16S rRNA gene. The nursing swine shared only 6.2% of 1,800 total OTUs. Microbial diversity and abundance of Firmicutes were strongly positively correlated with age of nursing swine. However, the abundance of Proteobacteria and Chlamydiae decreased with swine age. The zoonotic pathogens Chlamydia, Pasteurella aerogenes, Campylobacter, and the enteric symbiont Epulopiscium were most abundant in 7-, 14-, 21-, and 28-day-old swine, respectively. When microbial population from all swine were taken together, Escherichia coli was the most abundant, followed by Lactobacillus reuteri. The probiotic potential of L. reuteri may partly explain the tolerance of PNS to pathogens. This study may be the first comprehensive report on early microbial colonization and succession pattern in PNS, which can be used as basis in developing effective and safe management strategies for low-cost/organic farming of PNS.

Source or Periodical Title

Philippine Journal of Veterinary Medicine

ISSN

317705

Page

17-27

Document Type

Article

Subject

Ileum, Microbial diversity, Philippine native swine

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