生物素的营养功能及其在奶牛饲养中的应用  

Nutritional functions of biotin and its application in dairy cattle feeding

作　　者：余超[1] 魏筱诗 孙菲菲[1] 刘宝龙[1] 何家俊[1] 姚军虎[1] 

机构地区：[1]西北农林科技大学动物科技学院,陕西杨凌712100

出　　处：《饲料工业》2016年第23期27-32,共6页Feed Industry

基　　金：国家科技支撑计划[2012BAD12B02];国家自然科学基金面上项目[31472122;31672451];科技部国际科技合作与交流专项[2010DFB34230]

摘　　要：生物素作为羧化酶的辅酶,与机体碳水化合物、脂类、蛋白质及核酸代谢密切相关。研究发现,生物素可改善奶牛蹄质健康,提高泌乳性能,但对能量代谢相关指标的影响不大。文章总结了生物素的结构及营养功能、奶牛生物素吸收及代谢途径,综述了生物素在奶牛饲养中的应用进展,并结合已有研究,给出了早期泌乳奶牛日粮生物素的建议添加量,旨在为生物素的合理添加和保障奶牛健康提供参考。Biotin, as a coenzyme of carboxylases, is closely related with the metabolism of body carbohydrate, lipid, protein and nucleic acid. Many studies indicated that dietary biotin supplementation can improve cow hoof quality and milk production performance, but had little effect on factors related to energy metabolism of dairy cattle. We summarized the structure and nutritional functions, absorption and metabolic pathways of biotin for dairy cattle, reviewed its application in dairy cattle feeding, and suggested supplemental doses of biotin for early lactating dairy cattle, aiming to offering references for appropriate application of biotin and improving health condition of dairy cattle.

关 键 词：生物素 奶牛 生产性能 营养功能 代谢 

分 类 号：S816.15[农业科学—饲料科学]