Association between the body weight of growing pigs and the functional capacity of their gut microbiota

Ju Kyoung Oh, Jong Pyo Chae, Edward Alain B. Pajarillo, Sung Hun Kim, Min Jin Kwak, Jong Su Eun, Seok Woo Chee, Kwang Youn Whang, Sae Hun Kim, Dae Kyung Kang

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)


Gastrointestinal microbiota impact host's biological activities, including digestion of indigestible feed components, energy harvest, and immunity. In this study, fecal microbiota of high body weight (HW) and low body weight (LW) growing pigs at 103 days of age were compared. Principal coordinates analysis separated the HW and LW groups into two clusters, indicating their potential differences between microbial community composition. Although the abundances of two major phyla, Firmicutes and Bacteroidetes, did not significantly differ between the HW and LW groups, some genera showed significant differences. Among them, Peptococcus and Eubacterium exhibited strong positive correlations with body weight (BW) and average daily gain (ADG) (Rho > 0.40), whereas Treponema, Desulfovibrio, Parabacteroides, and Ruminococcaceae_unclassified exhibited strong negative correlations with BW and ADG (Rho < −0.40). Based on these results, the structure of intestinal microbiota may affect growth traits in pigs through host–microbe interactions. Further in-depth studies will provide insights into how best to reshape host–microbe interactions in pigs and other animals as well.

Original languageEnglish
Article numbere13418
JournalAnimal Science Journal
Issue number1
Publication statusPublished - 2020 Jan 1


  • body weight
  • fecal microbiota
  • metabolism
  • network analysis
  • pig

ASJC Scopus subject areas

  • Medicine(all)


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