Searchable, peer-reviewed, open-access proceedings from bioscience and biomedical conferences
Bioscientifica Proceedings (2019) 1 REDRREDR21 | DOI: 10.1530/biosciprocs.1.021

(1)

A changed responsiveness to oestrogen in ewes with clover disease

NR Adams

4 views


Division of Animal Health, CSIRO, Institute of Agriculture, University of Western Australia, Nedlands, Western Australia 6009


Summary. When clover-infertile ewes are subsequently exposed to non-oestrogenic pasture, they have a reduced fertilization rate, due to an inability to store spermatozoa in the cervix, and the cervical mucus has a reduced spinnbarkeit, caused by a slower response to oestrogenic stimulation. Vaginal cell keratinization and oestrous behaviour occurred more slowly after treatment of affected ewes with oestrogen. Other changes in affected ewes suggest that phyto-oestrogens have permanent mild differentiating effects on adults. Sexual behaviour is masculinized, the cervix takes on a uterine-like appearance and the genital tract becomes permanently oestrogenized. The manner in which these changes relate to the altered responsiveness to oestrogen remains to be clarified.

© 1981 Journals of Reproduction & Fertility Ltd

Volume 1

Reproductive Endocrinology of Domestic Ruminants

Society for Reproduction and Fertility 

Browse other volumes

Article tools

My recent searches

No recent searches.

My recently viewed abstracts

No recent abstracts.