Oestrogens in New Zealand pasture plants

Abstract
Extract When Bennetts et al. ( 1946 Bennetts, H. W. , Underwood, E. J. and Shier, F. L. 1946. Aust. vet. J., 22: 2–12. [Crossref], [PubMed] [Google Scholar] ) associated breeding problems in sheep in Western Australia with the presence of oestrogens in the subterranean clover fodder, it was of interest to determine whether subterranean clover in this country might also contain oestrogens.