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  • Title: Abnormal spermatozoa, testicular degeneration, and varicocele in a ram.
    Author: Ott RS, Heath EH, Bane A.
    Journal: Am J Vet Res; 1982 Feb; 43(2):241-5. PubMed ID: 7091826.
    Abstract:
    A 4-year-old Corriedale ram, with a history of infertility, had 50% abnormal acrosomes in the ejaculate resembling knobbed spermatozoa. Electron microscopic profiles of the apical segment of the affected acrosomes revealed a membrane-enclosed inclusion or cyst filled with particulate matter. The abnormal acrosomes were combined with a high prevalence of other degenerative changes such as head abnormalities, proximal droplets, and loose heads. Spermatozoa were examined from 9 ejaculates collected over an 8-month period. Abnormal acrosomes decreased to 5% after 4 months, but increased to 83% a month later. Examination of the testes after castration revealed bilateral varicocele and degeneration of seminiferous epithelium.
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