In order to investigate the common diseases of reproductive organs in Korean and dairy cattle, affected 32 Korean and 40 Holstein cows were inspected for detection of causes of the diseases and analyzed the results of experimental treatments, while the reproductive organs of 3 slaughtered cows were observed pathologically and the occurrence status of granular venereal disease in Korean cows were surveyed.
The results obtained were summarized as follows:
1. Causative diseases of 32 Korean cows were diagnosed as 8 follicular cyst (25%), 8 endometritis or pyometra (25%), 7 dysfunction of ovary C21. 9%6), 5 lutein cyst (15.6%), 2 silent heat (6.3%), and 2 abnormality (6.3%), meanwhile 40 Holstein cows were diagnosed as 16 lute in cyst (40%), 11 dysfunction of ovary (27.5%), T follicular cyst (17.5%), 3 endometritis or pyometra (7.5%), 2 silent heat (5%), and 1 abnormality (2.5%).
2. After the administration of effective drugs and obstetric treatment, 19 Korean cows (59%) revealed recovery and pregnancy but- 6 Korean cows (19%) remained in infertility, while 23 Holstein cows (57. 5%) revealed recovery and pregnancy but 8 Holstein cows (20%) remained in infertility.
3. Slaughtered 3 cases showed severe structural changes on account of proliferation of connective tissue in uterus and ovary, formation of permanent corpus luteum, and diminished growth of each follicle.
4. Each age grouped of Korean cows was infected with f granular venereal disease and the 38 infected cows (16.3%) showed pregnancy status.
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