奶牛正常乳与隐性乳房炎乳中脂肪酸组成的比较研究

畜牧兽医学报 ›› 2011, Vol. 42 ›› Issue (1): 44-47.doi:

奶牛正常乳与隐性乳房炎乳中脂肪酸组成的比较研究

常玲玲¹，杨章平¹*，吴海涛¹，陈莹¹，施雪奎¹，毛永江¹，岑宁¹，梁祥焕²，尹召华²

1扬州大学动物科学与技术学院，扬州 225009；2扬州大学实验农牧场，扬州 225009

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2011-01-25 发布日期:2011-01-25
通讯作者: 杨章平

Comparative Study on Fatty Acid Composition between Normal Milk and Subclinical Mastitis Milk of Dairy Cow

CHANG Ling-ling¹, YANG Zhang-ping¹*, WU Hai-tao¹, CHEN Ying¹, SHI Xue-kui¹, MAO Yong-jiang¹, CEN Ning¹, LIANG Xiang-huan², YIN Zhao-hua²

1. College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; 2. Experimental Farm, Yangzhou University, Yangzhou 225009, China

Received:1900-01-01 Revised:1900-01-01 Online:2011-01-25 Published:2011-01-25

摘要/Abstract

摘要： 旨在研究奶牛隐性乳房炎导致产奶量下降和乳成分的变化。使用气相色谱仪测定57头荷斯坦奶牛（其中32头患隐性乳房炎）乳中脂肪酸组分，比较正常乳和隐性乳房炎乳中脂肪酸的组分。结果表明：共检出21种脂肪酸，隐性乳房炎乳中棕榈油酸（C16∶1）的含量高于正常乳，其他20种脂肪酸均低于正常乳，其中有9种显著低于正常乳(P<0.05)，2种极显著低于正常乳(P<0.01)；隐性乳房炎降低了牛奶中脂肪酸的总含量及饱和脂肪酸、单不饱和脂肪酸和多不饱和脂肪酸的含量；隐性乳房炎乳中饱和脂肪酸和单不饱和脂肪酸的百分比高于正常乳，多不饱和脂肪酸的百分比则低于正常乳。结果提示，隐性乳房炎影响奶牛脂肪酸合成过程，改变了脂肪酸的组分。

Abstract: The aim of the study was to investigate that subclinical mastitis of dairy cow causes the decline of milk yield and the change of milk composition. Detect milk fatty acids of 57 Holstein cows (32 of them suffer from subclinical mastitis)with gas chromatography,and compare fatty acid composition of normal milk with subclinical mastitis milk. The results showed that 21 fatty acids which were from C4 to C22 could be found out, the content of palmitoleic(C16∶1) in subclinical mastitis milk was higher than that in normal milk,but other 20 kinds of fatty acids were lower, 9 fatty acids in subclinical mastitis milk were significantly lower than that in nomal milk(P<0.05), and 2 fatty acids in subclinical mastitis milk were great significantly lower than that in nomal milk(P<0.01). Subclinical mastitis reduced the total content of milk fatty acids and the content of saturated fatty acid, monounsaturated fatty acid and polyunsaturated fatty acid. Saturated fatty acid percentage and monounsaturated fatty acid percentage of subclinical mastitis milk were higher than that in normal milk,but polyunsaturated fatty acid percentage of subclinical mastitis milk was lower than that in normal milk. Consequently, subclinical mastitis affects the synthetic process of cow fatty acids and changes the composition of fatty acids.

常玲玲;杨章平;吴海涛;陈莹;施雪奎;毛永江;岑宁;梁祥焕;尹召华. 奶牛正常乳与隐性乳房炎乳中脂肪酸组成的比较研究[J]. 畜牧兽医学报, 2011, 42(1): 44-47.

CHANG Ling-ling;YANG Zhang-ping;WU Hai-tao;CHEN Ying;SHI Xue-kui;MAO Yong-jiang;CEN Ning;LIANG Xiang-huan;YIN Zhao-hua . Comparative Study on Fatty Acid Composition between Normal Milk and Subclinical Mastitis Milk of Dairy Cow[J]. ACTA VETERINARIA ET ZOOTECHNICA SINICA, 2011, 42(1): 44-47.

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