Mycotoxin effect on bovine rumen fermentation and its control by probiotics

研究了脱氧雪腐镰刀菌烯醇（DON）和玉米赤霉烯酮（ZEN）对体外瘤胃发酵的影响及其在瘤胃内的降解。这些霉菌毒素抑制挥发性脂肪酸的产生和瘤胃发酵。ZEN的作用大于DON。瘤胃微生物对真菌毒素的降解作用比细菌强，添加益生菌或益生元（如海藻糖、酵母菌）可促进真菌毒素的降解。这表明这些添加剂可以作为抗霉菌毒素试剂应用于反刍动物生产领域。

Effects of deoxynivalenol(DON) and zearalenone(ZEN) on in vitro ruminal fermentation and their breakdown in the rumen were conducted. These mycotoxins suppressed volatile fatty acid production and rumen fermentation. The effects by ZEN were greater than that by DON. A part of these mycotoxins was degraded by rumen microorganisms, being protozoa are more active than bacteria.Degradation of mycotoxins was increased by the addition of some probiotics or prebiotics, such as trehalose and yeast. This indicate that these supplements could be used as anti-mycotoxin reagents in the field of ruminant production.