論文宣讀

大豆殼是大豆加工過程之農業副產物，應用於反芻動物的纖維補充原料。其含有的酚類與黃酮類化合物，可作為天然抗氧化物的來源。本研究旨為以貝萊斯芽孢桿菌（Bacillus velezensis）發酵大豆殼（Fermented soybean hull, FSBH_B），以評估對肉雞的生長性狀、腸道型態、腸道菌相、抗氧化能力與免疫調節等影響。經發酵後的總酚含量提升0.43 mg of GAE/g DM；可溶性胜肽含量提升1.70 %/g DM。以400隻1日齡Arbor Acres 白肉雞逢機分為基礎飼糧（Control）、以5% 及10% 取代基礎飼糧的未發酵豆殼（5% USBH、10% USBH）與發酵豆殼（5% FSBH_B、10% FSBH_B），試驗期為35日。結果顯示，5% USBH、10% USBH、5% FSBH_B與10% FSBH_B組，在前期的體重和體增重均顯著提升；5% FSBH_B與10% FSBH_B組顯著提升盲腸絨毛高/腺窩深比值與乳酸菌數；空腸基因表現中，5% FSBH_B傾向於抑制促發炎基因，10% FSBH_B傾向於促進抗氧化基因。綜上所述，大豆殼經B. velezensis發酵可提升其可溶性胜肽，並改善白肉雞的前期生長、腸道健康和抗氧化活性，並以10% FSBH_B組的效果最佳。

關鍵字: 發酵大豆殼、可溶性胜肽、貝萊斯芽孢桿菌、白肉雞

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