Korean Journal of Veterinary Research 1976;16(2):151-158.
Experimental Studies on Differential Diagnosis of Non-pathogenic Lesion Dairy Cattle with Positive Tuberculin Reaction
Jong Myeon Kim
Department of Veterinary Medicine, College of Agriculture, Jeonbug National University
Tuberculin 양성(陽性) 무병소유우(無病巢乳牛)의 감별진단(鑑別診斷)에 관한 실험적연구(實驗的硏究)
전북대학교 농과대학 수의학과
The tuberculin test have been widely utilized to diagnose tuberculosis of the dairy cattle. It was reported that approximately 70% of the dairy cattle with positive tuberculin reaction in Korea had been non-pathogenic lesion. So the studies on the specific method to diagnose tuberculosis of them is really need in Korea. Therefore this study investigated upon the diagnostic method for cattle tuberculosis in the aspect of cellular-immunology. The results obtained in this investigation are summarized as follows: 1. All the tuberculin tests to the swine inoculated with BCG.(B group), Mycobacterium avium (A group) and Mycobacterium smegmatis (S group), respectively, were represented high positive reaction and were no differences in the species of inoculated bacteria. 2. In the migration inhibition test using Iymphocyte in circulating blood of the swine inoculated with three species of acid-fast bacteria respectively, the test to A group was represented slight positive for migration in the presence of $15{mu}g/ml$-PPD and the other reaction were clear and total positive for migration inhibition in the presence of $25{mu}g/ml$-PPD or more, and the test to B group was the same results as to A group approximately. The test to S group was represented slight positive for migration inhibition in the presence of $15{mu}g/ml$-PPD, but the results were the same in the presence of $25{mu}g/ml$-PPD and $35{mu}g/ml$-PPD. These results showed that there were remarkable differences between group A, B and group S in the presence of $25{mu}g/ml$-PPD and $35{mu}g/ml$-PPD. 3. The transformation rates of lymphocyte in PPD treated tissue culture had no significance without any relation between PPD treatment and non-treatment but A group and B group showed significance. And A group and B group showed high significance in comparison with N group and S group in the LSD examination. 4. The infection rated in lymphocyte of BCG inoculated after 3 days tissue culturing were represented those of high infection but its cellular degeneration rates almost did not change. The infection rates in bacilli in N group and S group were low but after 3 days inoculation it shewed higher cellular degeneration.
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