Machine derived contents note: 1. Review -- neuroendocrine control of the ovine oestrous cycle I. J. Clarke; 2. Use of active immunization to evaluate the roles of progesterone during the oestrous cycle of the ewe G. B. Thomas, C. M. Oldham, R. M. Hoskinson and R. J. Scaramuzzi; 3. Review -- endocrine and environmental control of oestrous cyclicity in sheep F. J. Karsch; 4. A study of the reproductive performance of mature Romney and Merino rams throughout the year W. J. Bremner, I. A. Cumming, C. Winfield, D. M. de Kretser and S. Galloway; 5. Response of seasonally anoestrous ewes to 23 hours circadian darkness B. J. McDonald and P. S. Hopkins; 6. Changes in the clearance rate of immunoreactive LH after ovariectomy in Ile-de-France ewes G. W. Montgomery, S. F. Crosbie, G. B. Martin and J. Pelletier; 7. Review -- the 'ram effect', its mechanism and application to the management of sheep D. T. Pearce and C. M. Oldham; 8. Management of males for ram induced breeding of crossbred ewes in Spring J. L. Reeve; 9. The effect of the presence of rams on the continuity of ovarian activity of maiden Merino ewes in spring J. J. Murtagh, S. J. Gray, D. R. Lindsay, C. M. Oldham and D. T. Pearce; 10. Review -- reproductive behaviour of rams D. G. Fowler; 11. Ram mating preferences A. Tilbrook and A. W. N. Cameron; 12. Dynamics of paddock-mating of rams in conventional and intensified mating systems H. W. Raadsma and T. N. Edey; 13. Review -- field application of the ram serving capacity test M. A. de B. Blockey and J. F. Wilkins; 14. The value of testing young rams for serving capacity I. W. Purvis, T. N. Edey, R. J. Kilgour and L. R. Piper; 15. Review -- the functions of the testis and epididymis in rams B. P. Setchell; 16. The effects of specific neurectomies and cremaster muscle sectioning on semen characteristics and scrotal thermoregulatory responses of rams I. C. A. Martin, K. R. Lapwood and R. L. Kitchell; 17. Effect of lupin feeding on LH, testosterone and testes A. J. Ritar, N. R. Adams and M. R. Sanders; 18. Review -- semen quality, quantity and flock fertility A. W. N. Cameron, I. J. Farnie and E. J. Keogh; 19. Changes in plasma concentrations of cortisol and prolactin in rams associated with ejaculation of semen I. C. A. Martin, K. R. Lapwood and H. J. Elgar; 20. Toward quantification of procedures for collection of semen from rams from electroejaculation I. C. A. Martin and I. W. Purvis; 21. Review -- folliculogenesis and ovulation rate in sheep L. P. Cahill; 22. Seasonal oestrus and ovulation patterns of Border Leicester crossbred ewes from three strains of Merino ewes and their Booroola crosses E. A. Dunstan and D. Phillips; 23. Frequency of lutenizing hormone release in Merino ewes with one and two ovulations G. B. Thomas, C. M. Oldham and G. B. Martin; 24. Review -- maternal recognition of pregnancy J. K. Findlay; 25. The use of ovariectomized ewe in studies on survival of embryos during early pregnancy: a role for progesterone preceding conception N. W. Moore and B. G. Miller; 25. Protein secretion by preimplantation sheep blastocysts L. A. Salamonsen, B. Doughten and J. K Findlay; 26. Proteins secreted by the 16-day-old sheep blastocyst have immunosuppresive properties A. L. C. Wallace, C. D. Nancarrow and R. Sutton; 27. Contribution of the utero-ovarian lymphatic network to the control of corpus luteum function in the ewe L. D. Staples and P. A. Whylie; 28. The endocrine control of luteal oxytocin and uterine PGF2? release in the ewe R. J. Fairclough, A. J. Peterson, L. G. Moore and W. B. Watkins; 29. Review -- fertilisation failure and embryonic wastage R. W. Kelly; 30. Protein secreted by the endometrium of the ewe during pregnancy B. G. Miller, X. Zhang and G. M. Stone; 31. Reproductive wastage and chromosomal abnormalities in early embryos from andrestenedione-immune and control Merino ewes M. P. Boland, J. D. Murray, R. J. Scaramuzzi, R. Sutton, R. M. Hoskinson, I. G. Hazelton.