Impact of NDF Content and Digestibility on Dairy Cow Performance
Impact of NDF Content and Digestibility on Dairy Cow Performance
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NDF 含量和消化率对奶牛生产性能的影响
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
D. Mertens
中科院分区：
文献类型：
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作者：
D. Mertens
8 NDF含量和消化率也会影响摄入量·摄入量调节的简单机制可以解释纤维的影响·当饲喂高能量、低纤维日粮时，奶牛会调节摄入量以满足其生产所需的能量·当饲喂低能量、高纤维日粮时，奶牛根据填充容量限制摄入量·NDF与能量密度呈负相关，与填充呈正相关，因此与两种摄入调节机制相关
8 NDF content and digestibility also affect intake • Simple mechanisms of intake regulation can explain fiber’s impact • When high-energy, low-fiber rations are fed, cows regulate intake to meet their energy demand for production • When low-energy, high-fiber rations are fed, cows limit intake based on fill capacity • NDF is negatively related to energy density and positively related to fill and therefore related to both mechanisms of intake regulation