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Probiotic Lactobacillus johnsonii BS15 Promotes Growth Performance, Intestinal Immunity, and Gut Microbiota in Piglets

  • 2019-01-07
  • Probiotics and Antimicrobial Proteins 12(1)
    • Jinge Xin
    • Dong Zeng
    • Hesong Wang
    • Ning Sun
    • Ying Zhao
    • Yan Dan
    • Kangcheng Pan
    • Bo Jing
    • Xueqin Ni

Abstract

Numerous studies have investigated the beneficial effects of Lactobacillus johnsonii strain BS15 on mice and broilers. This study aimed to understand the growth-promoting effects of BS15 on piglets. We determined the effects of L. johnsonii BS15 and a commercial probiotic strain, Bacillus subtilis JS01. Seventy-two suckling piglets (1 ± 2-day-old) were divided into three groups and fed with diets supplemented with 1 × 106 colony-forming units (cfu) BS15 per gram of feed (BS15 group); 1 × 106 cfu JS01 per gram of feed (JS01 group); or de Man, Rogosa, and Sharpe liquid medium (control group) 35 days. Compared with JS01, BS15 significantly improved the daily weight gain and diarrhea index of the piglets. The BS15 group had higher fecal sIgA levels, whereas the JS01 group had high fecal sIgA levels only after 35 days of treatment. Additionally, BS15 altered T cell subsets in peripheral blood by significantly increasing the CD3+CD4+ T cell percentage and CD3+CD4+/CD3+CD8+ ratio and decreasing the CD3+CD8+ T cell percentage. Moreover, BS15 exerted better beneficial effects on fecal microbiota than JS01. Specifically, the BS15 group had markedly increased Clostridium, Peptococcus, and Lactobacillus populations on days 7 and 21 of treatment and reduced Escherichia coli populations on day 35 of treatment. These findings indicated that BS15 can be applied as a probiotic that promotes growth performance and controls diarrhea in piglets.

Keywords: Intestinal immunity; Lactobacillus johnsonii; Piglet; Probiotic; T cell subsets.

Research Insights

SupplementHealth OutcomeEffect TypeEffect Size
Lactobacillus johnsonii LJ09Altered Gut MicrobiotaBeneficial
Moderate
Lactobacillus johnsonii LJ09Improved Daily Weight GainBeneficial
Large
Lactobacillus johnsonii LJ09Improved Intestinal ImmunityBeneficial
Moderate
Lactobacillus johnsonii LJ09Reduced Diarrhea RateBeneficial
Large
Lactobacillus johnsonii VPro 33Altered T Cell SubsetsBeneficial
Moderate
Lactobacillus johnsonii VPro 33Improved Daily Weight GainBeneficial
Large
Lactobacillus johnsonii VPro 33Improved Fecal Microbiota CompositionBeneficial
Moderate
Lactobacillus johnsonii VPro 33Increased Fecal Secretory IgA LevelsBeneficial
Moderate
Lactobacillus johnsonii VPro 33Reduced Diarrhea IncidenceBeneficial
Large
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