The characteristics of deoxynivalenol in silage fermentation

本研究旨在研究脱氧雪腐镰刀菌烯醇（DON）在青贮饲料处理过程中的特性。作为初步实验，测试了DON在不同pH溶液中的稳定性。结果表明，DON在弱酸性和中性溶液中稳定，在弱碱性溶液中明显减少。为了研究青贮饲料中DON的特性，采用F. graminearum或模压玉米籽粒。在整株玉米中添加禾谷镰刀菌青贮30天。结果表明，这些处理在青贮期间和青贮后7天DON浓度没有变化。

This research focused on the characteristics of deoxynivalenol (DON) during silage treatment. As preliminary experiment, stability of DON in different pH solution was tested. The results showed that DON was stable in mild acidic and neutral solution but reduced clearly in mild basic solution. To evaluate the characteristics of DON during silage, spores of F. graminearum or molded maize grain by F. graminearum was added to whole-crop maize and ensiled for 30day. It was revealed that DON concentration was not changed during ensiling and 7 days after ensiling among these treatments.