Contents: The changes in the testes of adult rams have been followed by methods of light‐and electronmicroscopy after intoxication with copper emitted from a copper plant. In the toxic phase of the disease primarily the germinative epithelium was damaged. The breaking or decay of the cellular membrane with consequent devastation or stagnation of the spermiogenesis was observed. The toxic effect of the copper affects irreversibly not only all the cells of spermiogenesis in the developmental stages, but it damages also the Sertoli cells including the components of the interstitium. These changes participated in the impairment of reproduction in the flock under study.
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Vrzgulová et al. (1993) studied this question.
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