Retrieval of "Ergothioneine" as strongly antioxidant matter from feed of livestock animal and verification of antioxidant ability in the lean

用含有抗氧化麦角硫因（ERT）金平菇废菌床的发酵总混合日粮（TMR：试验区）或含有稻草的发酵总混合日粮（TMR：对照区）饲喂绵羊育肥时，由于稻草的消化率较好，以干物质为基础的饲料系数在对照区7.1为7.1，在试验区10.2为10.2。背最长肌展示后肌红蛋白呈低变化趋势。饲养后第2、3 d，试验区的红色程度高于对照区。HPLC和UPLC-PDA-ESI-MS对废蘑菇床和稻草中的ERT检测不明显。考虑到废菌床中添加ERT或除ERT外的未知物质的影响，绵羊的瘦肉倾向于通过饲喂含金平菇的废菌床来进行抗氧化。

When fermented total mixed ration (TMR: experimental plot) containing the waste mushroom bed of golden oyster mushroom which contains ergothioneine (ERT) with anti-oxidization ability or the fermented TMR (control plot) containing rice straw was fed to sheep and fattened, the feed conversion ratios as dried matter basis were 7.1 in control plot 7.1 and 10.2 in experimental plot 10.2, since the digestibility was superior in rice straw. The metmyoglobin of longissimus dorsi muscle after exhibition tended to change low for experimental plot. The degree of red color was higher in experimental plot than control plot on 2nd and 3rd days after exhibition. ERT in waste mushroom bed and rice straw could not be clearly detected by HPLC and UPLC-PDA-ESI-MS detector. The effect of ERT containing in waste mushroom bed or an unidentified material except for ERT was considered that the lean of sheep tended to do the antioxidant by feeding the waste mushroom bed containing golden oyster mushroom.