中国荷斯坦奶牛产奶量与乳品质互作关系探讨  

Study on Relationship between Milk Yield and Milk Quality of Chinese Holstein Dairy Cow

作　　者：段柳艳[1] 马向辉[2] 高腾云[1] 王笑笑[1] 孙凯佳[1] 张丽[1] 

机构地区：[1]河南农业大学牧医工程学院,河南郑州450002 [2]西北农林科技大学,陕西杨凌712100

出　　处：《江西农业学报》2009年第11期136-137,142,共3页Acta Agriculturae Jiangxi

摘　　要：以一个奶牛场的336头泌乳牛为研究对象,选取了降低产奶量前、降低产奶量期间、恢复产奶量期间和提高产奶量期间4个阶段,研究了每个阶段的产奶量与乳品质一些指标间的相关性。经分析,产奶量、乳蛋白质率、乳脂肪率、非脂乳固体含量、乳糖含量这5个指标相互之间均有极显著的正相关性。Taking 336 heads of lactating dairy cows as the researched object, the test observation was divided into four consecutive stages （ before reducing milk yield, the stage of reducing milk yield, the stage of resuming milk yield and the stage of improving milk yield）, the correlations between milk yield and milk quality at each stage were analyzed. The results showed that the correlations among the daily milk yield, protein content in the milk, fat content in the milk, not fat milk solid content and lactose content in the milk were all positively significant （P 〈0.01 ）.

关 键 词：产奶量 乳品质 相关性 奶牛 

分 类 号：S823.91[农业科学—畜牧学]