A seven-year-old infertile British alpine buck with small testes had bilateral testicular degeneration, as confirmed by the presence of a large number of dead and abnormal spermatozoa and a low percentage of progressively motile spermatozoa in its semen. Histopathological examination of the testes post mortem showed typical degenerative changes in the seminiferous tubules, with some tubules showing evidence of calcification. Ultrasonographically, the testicular parenchyma was uncharacteristically heterogeneous with an abundance of dense echogenic areas scattered through it.
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