ANATOMICAL AND PATHOLOGICAL STUDIES ON THE SEX ORGANS FROM SLAUGHTERED BULLS IN HOKKAIDO : III. PATHOLOGICAL FINDINGS

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Pathological investigations were made on the genital organs from 15 slaughtered bulls. The findings may be summarized as follows : Testicular degeneration was observed in 3 cases and orchitis in 2 cases. The former was similar to partial hypoplasia, showing degeneration in several seminiferous tubules with a single layer of markedly vacuolized spermatogonia, moderately thickened basal membrane and almost empty cavity. The histological findings of the orchitis cases were accordant with those of chronic local interstitial orchitis, showing atrophy and vacuolation in the seminiferous tubules. In the interstitial tissue, there existed marked edema, proliferation of histiocytic cells, fibrosis and cellular infiltration or cellular foci. One of the orchitis cases had been treated with testosterone propionate and PMSG ; during administration of these preparations, the number of spermatozoon increased to about 2〜3 times that before the therapy. Urinary calculi were found in 2 cases. The urinary tract in these cases was affected by chronic catarrhal inflammation. Chemical analysis of the urinary calculi showed mainly silicic acid. In the prepuce, chronic catarrhal posthitis was observed in 9 cases. In the corium intense cellular infiltration and foci were noted.