The efficacy of yeast cell wall in the adverse effect of zearalenone on ruminal fibrolytic bacteria and in vitro fermentation

• Main Authors: Chittraporn Yeanpet, Chaiyapas Thamrongyoswittayakul, Chalong Wachirapakorn, Piyada Songsermsakul
• Format: Article
• Language: English
• Published: Prince of Songkla University 2021-06-01
• Series: Songklanakarin Journal of Science and Technology (SJST)
• Subjects: zearalenone; yeast cell wall; rumen fermentation; mycotoxin; fibrolytic bacteria
• Online Access: https://rdo.psu.ac.th/sjstweb/journal/43-3/4.pdf

The efficacy of yeast cell wall in the adverse effects of zearalenone (ZEN) in in vitro gas production was determined. The experiment consisted of 4 treatments: 1) diet alone, 2) diet plus 0.5 mg/kg ZEN, 3) diet supplemented with 0.5% yeast cell wall, and 4) diet supplemented with 0.5% yeast cell wall plus 0.5 mg/kg ZEN. ZEN suppressed the Fibrobacter succinogenes and Ruminococcus albus populations (P<0.05), but did not interfere with the in vitro gas production. In contrast, yeast cell wall increased the F. succinogenes and R. albus populations and in vitro gas production of insoluble fractions (P<0.05). Moreover, ZEN and yeast cell wall did not affect digestibility, VFAs, NH3N, or B. fibrisolvens population. The efficiency of yeast cell wall on ZEN decontamination was unclear. In conclusion, ZEN reduced major fibrolytic bacterial populations, while yeast cell wall could alleviate the ZEN adverse effect and enhance in vitro gas production.