隐性乳房炎乳汁中体细胞和病原菌及酶间的相关性

Correlation between somatic cell counts and bacteria and enzymes in milk of subclinical mastitis

对奶牛隐性乳房炎乳汁中体细胞、乳酸脱氢酶（ＬＤＨ）、碱性磷酸酶（ＡＬＰ）、酸性磷酸酶（ＡＣＰ）、谷氨酸草酰乙酸转氨酶（ＧＯＴ）、谷氨酸丙酮酸转氨酶（ＧＦＴ）和血清白蛋白（ＳＡ）及病原微生物的相关性进行了研究。结果发现ＬＤＨ，ＡＣＰ，ＧＯＴ，ＧＰＴ的活性和ｓＡ的含量变化与白细胞数之间存在极显著的相关关系（Ｐ＜０．０１），尤以ＬＤＨ的相关性最强（ｒ＝０．８５８）；ＡＬＰ与体细胞数之间无相关关系（Ｐ＞０．０５）．不同的乳房炎病原微生物感染乳腺呈现不同的酶象变化，与阴性感染的乳腺相比，各酶的活性均出现增加，尤以金黄色葡萄球菌感染的乳腺有关酶的增加幅度最为显著（Ｐ＜０．０１）。

Correlations were studied between somatic cell counts (SCC),lactate-dehydrogenase(LDH),alkaline-phosphatase(ALP),acid-phosphatase ( ACP),glutamic-pyruvic transaminase(GPT), glutamic-oxaloacetic transaminase (GOT),serum albumin (SA)and different bacteria in milk of bovine subclinical mastitis. Significant correlation coefficients(P< 0.01)were found be-tween LDH,ACP,GPT,GOT,SA and SCC. Among them,the closest relationship was observed be-tween LDH and SCC (r=0.858).But ALP had a poor correlation with SCC(P>0.05 ).In en-zymes milk varied with the infection status; Activities of enzyrnes were higher in bacteria positive milk than those in bacteria negative milk.A highest enzymic activity was detected in milk from Sstaphylococcut aureus infected quarters(P<0.01)。