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首页> 外文会议>EAAP International Symposium on Energy and Protein Metabolism >Effect of feeding rice grain silage with wood kraft pulp on milk production and enteric methane production in dairy cows
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Effect of feeding rice grain silage with wood kraft pulp on milk production and enteric methane production in dairy cows

机译：牛皮牛皮浆喂养水稻籽粒青贮饲料对奶牛牛奶生产和肠溶甲烷生产的影响

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The purpose of this study was to investigate the effect of inclusion of rice grain silage (RGS) and wood kraft pulp (KP) in a mixed ration on milk and methane (CH4) production in dairy cows. Eleven Holstein dairy cows were reared in a bam with an automatic milking system (AMS). For the first three weeks, cows were fed a control partially mixed ration (PMR, CI) containing a commercial feed. For the subsequent two weeks, cows were fed a test PMR (RK) containing RGS and KP, substituting for a part of the commercial feed in CI. For the final three weeks, cows were fed the similar control PMR (C2) as CI. CH4 production was estimated by a sniffer method determining CH4:C02 concentration ratio in spot gas samples collected from the air around the muzzle ofcows at milking in AMS. Although dry matter intake and fat corrected milk (FCM) yield for RK PMR did not differ from those for the control PMR (CI and C2), milk protein content was higher for RK than for control PMR. Estimated CH4 production per day aswell as per kg FCM were higher for RK than for the control PMR.
机译：本研究的目的是探讨将水稻谷物青贮（RGS）和木材牛皮浆（KP）包含在奶牛牛奶和甲烷（CH4）生产中的混合竞争中的影响。 11个荷斯坦奶牛饲养在一个带有自动挤奶系统（AMS）的BAM中。对于前三周，奶牛被喂养含有商业饲料的部分混合的配量（PMR，CI）。对于随后的两周，奶牛被喂养含有RGS和KP的试验PMR（RK），取代CI中的一部分商业饲料。对于最后三周，奶牛将类似的控制PMR（C2）作为CI送入CI。 CH4生产由嗅探方法确定CH4：CO 2浓度比在从AMS挤奶的尿布周围的空气周围收集的点气体样品中的点气相。虽然RK PMR的干物质摄入和脂肪校正牛奶（FCM）产率与控制PMR（CI和C2）的产率没有不同，但牛蛋白含量比对照PMR更高。每天估计每天的CH4生产率为每千克FCM率高于控制PMR。

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