提高乳牛隐性乳腺炎检出率的研究

STUDIES ON RAISING THE DIAGNOSIS RATE OF SUBCLINICAL MASTITIS IN COWS

本试验测定了乳牛隐性乳腺炎病牛的血清蛋白、乳汁蛋白成分及乳汁氨基酸含量。其结果与健康牛组相比较,血清、乳汁中均呈白蛋白降低,免疫球蛋白显著升高(P<O.01),其它蛋白各成分无明显变化。乳汁氨基酸所测出的16种中有14种氨基酸含量降低,其中6种必需氨基酸显著降低(P<0.01)。用上述方法来综合判定可提高乳牛隐性乳腺炎的检出率,同时也证明了患隐性乳腺炎病牛乳汁不适宜婴幼儿及老、弱、病人做营养品饮用。

The contents of serum proteins, whey proteins and milk amino aeids of cows with subclinical mastitis were determined. It was found that the levels of serum albumin and milk albumin of sick cows was lower, the level of immuno-globulin was markedly higher, than that of control ( p<0.01 ) . But no significant changes were found in other proteins. Of the 16 estimated amino acids of milk 14 were reduced and 6 of them was markedly decreased from the control ( p<0.01 ) . The comprehensive examination with methods mentioned above could increase the diagnosis rate of cows' subclinical mastitis and has showed that the milk from the cows with subclinical mastitis is not suitable for children, aged people and patients.