不同精粗比日粮对奶牛产奶性能、乳品质和免疫力的影响
朱芬花,冯秉福,罗永珍,范秀兰
不同精粗比日粮对奶牛产奶性能、乳品质和免疫力的影响
Effect of Different Ratios of Concentrate to Roughage on#br# Milk Yield, Milk Quality and Immunity of Dairy Cows
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