Abstract
Extract During the last decade significant advances have been made in the control of oestrus and ovulation in domestic animals and this topic has been reviewed many times within that period (Hansel, 1964 Allen, W. R. and Rossdale, P. D. 1973. A preliminary study upon the use of prostaglandins for inducing oestrus in non-cycling thoroughbred mares. Equine vet. J., 5: 13740–13740. [Google Scholar] ; Robinson, 1967 Anon Ministére de l'Agriculture Bull. Technique d'Injormation No. 257 Production Animales 1. Reproduction Paris 1971 [Google Scholar] ; Jochie, 1969 Berwyn-Jones, M. D. and Irvine, C. H. G. 1974. Induction of luteolysis and oestrus in mares with a synthetic prostaglandin analogue (ICI 81008). N.Z. vet. J., 22: 107–110. [Taylor & Francis Online] [Google Scholar] ; Mauleon, 1974 Cooper, M. J. 1974. Control of oestrus cycles of heifers with a synthetic prostaglandin analogue. Vet. Rec, 95: 200–203. [Crossref], [PubMed], [Web of Science ®] [Google Scholar] ). This paper compares the advantages and disadvantages of the major methods for oestrus control and discusses the major overall problems associated with this control.