[Effect of anabolic hormones on the testis of calves: a morphopathologic and morphometric study].

The present study was undertaken to determine the morphological changes in calf testicular parenchyma following implantation of anabolics. Oestradiol and trenbolone acetate were observed to delay seminiferous tubule development of the calf testis resulting in a derangement of supporting and germinal cell maturation. We also observed an edematous process that primarily involved the interstitium and subsequently involved the interior of the seminiferous epithelium, causing a chain of subsequent changes. Changes in the germinal epithelium showed profound derangement throughout spermatogenesis and was particularly more marked and manifest during spermiogenesis.