奶牛瘤胃发酵性能与产奶量的相关性分析  

The Correlation of Rumen Fermentation Performance and Milk Yield of Dairy Cows

作　　者：逄世龙 司海锋 侯杰 张文晔 逄国梁 PANG Shilong;SI Haifeng;HOU Jie;ZHANG Wenye;PANG Guoliang;无(College of Animal Science and Technology,Northwest A&F University,Yangling Shaanxi 712100;Wugong Animal Health Supervision Institute,Xianyang Shaanxi 712200;Jinzhong Comprehensive Inspection and Testing Center,Jinzhong Shanxi 030606;Shaanxi Shiyang Agricultural Technology Co.,Ltd.,Xi'an Shaanxi 710016;Shaanxi Animal Husbandry Technology Promotion Station,Xi'an Shaanxi 710016)

机构地区：[1]西北农林科技大学动物科技学院,陕西杨凌712100 [2]武功县动物卫生监督所,陕西咸阳712200 [3]山西晋中市综合检验检测中心,山西晋中030606 [4]陕西石羊农业科技股份有限公司,陕西西安710016 [5]陕西省畜牧技术推广总站,陕西西安710016

出　　处：《中国乳业》2021年第9期74-78,共5页China Dairy

摘　　要：通过奶牛产奶量与瘤胃发酵指标的相关性分析,揭示奶牛瘤胃发酵性能对产奶量的影响。试验选取189头荷斯坦泌乳牛,记录产奶量,采集瘤胃液,分别检测氨氮(NH_(3)-N)和挥发性脂肪酸(VFA)含量。结果表明,NH_(3)-N与产奶量无显著相关性(P>0.05),丙酸的百分含量和产奶量极显著正相关(P<0.01),乙酸和异丁酸的百分含量与产奶量显著负相关(P<0.05)。由此可见,奶牛的瘤胃发酵性能与产奶量密切相关。The purpose of this experiment was to reveal the influence of rumen fermentation performance on milk yield by analyzing the correlation of milk yield and rumen fermentation indexes.Milk yield and rumen fluid of 189 Holstein lactating dairy cows were recorded,the contents of NH_(3)-N and volatile fatty acids were determined respectively.The results showed that there was no correlative between NH_(3)-N and milk yield(P>0.05),the percentage of propionate was positively correlated with milk yield(P<0.01),and the percentage of acetate and isobutyrate was negatively correlated with milk yield(P<0.05).In conclusion,rumen fermentation performance of dairy cows is closely related to milk yield.

关 键 词：瘤胃发酵 产奶量 相关性分析 

分 类 号：S823[农业科学—畜牧学]