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大豆皮替代产奶牛日粮精料中玉米与小麦麸对产奶性能和干物质与纤维消化特性的影响(1) 被引量:3

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摘要 用产奶牛饲喂试验(试验1)和尼龙袋消化试验(试验2)研究了大豆皮替代产奶牛日粮精料中玉米与小麦麸对产奶性能和干物质及纤维消化特性的影响。试验1条件下,以大豆皮替代精料中25%和50%玉米与小麦麸饲喂奶牛,每千克产奶的饲料成本平均减少0.045元和0.057元。试验2利用2头装有永久性瘤胃瘘管的本地黄牛测定了大豆皮及5种饲粮大豆皮替代水平(分别替代精料中玉米和小麦麸的0、25%、50%、75%和100%)的干物质(DM)和中性洗涤纤维(NDF)的尼龙袋消化率与动态消化参数。随着大豆皮替代玉米与小麦麸比例的提高,饲粮NDF中慢速消化组分的比例呈线性(P=0.002)和二次线性曲线(P=0.001)上升;快速消化组分趋于线性上升(P=0.082);NDF总体可消化组分呈线性上升(P=0.001)。
出处 《饲料广角》 2006年第2期31-33,共3页 Feed China
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