CHANGES IN CERVICAL HISTOLOGY IN EWES FOLLOWING PROLONGED GRAZING ON ESTROGENIC SUBTERRANEAN CLOVER

The cervical histology of ewes affected with clover disease (caused by prolonged grazing on oestrogenic subterranean clover pastures) was compared with that of control animals. The cervix from diseased ewes showed much greater glandular development, an increased incidence of cervicitis, fewer goblet cells and a lower incidence of stratified squamous epithelium than controls. These changes were permanent" since they were observed in ewes slaughtered up to 2 years after removal from oestrogenic pastures. The changes are consistent with the hypothesis that the cervix of affected ewes assumes a more uterine-like nature. © 1979."