Abstract
1. Postmortem findings on some bulls suffering from reproductive disorders lent support to the results of antemortem tests performed on them. Nearly good correlation§ were present between the white blood count and suppurative inflammation, between eosinophilia and liver flukes, and between the Gross reaction and liver dysfunction.
dysfunction. 2. A total of 33 bulls were examined in the field. Some of them which had not been used for insemination purposes on account of reproductive disorders gave abnormal results at least in one of the tests conducted. Serum protein was high in level, liver dysfunction was suspected from a positive Gross test' or a high eosinophilic count was obtained in spite of a negative test of liver fluke infection in some of the bulls regarded as healthy and used for reproduction.
3. The results of the tests performed suggest that reproduction disorders may be caused by complicated factors in bulls and that it may be induced by some medical and surgical diseases in addition to summer sterility and sexual dysfunction caused by endocrinological factors.
