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Studies of mating behaviour and fertility of Merino ewes

II. Effects of age of ewe, live weight, and paddock size on duration of oestrus and ram-seeking activity

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Pages 269-274 | Received 15 Dec 1975, Published online: 18 Jan 2012

References

  • Allison , A. J. and Davis , G. H. 1976 . Studies of mating behaviour and fertility of Merino ewes. I. Effects of number of ewes joined per ram, age of ewe, and paddock size . N.Z. Journal of Experimental Agriculture , 4 : 259 – 267 .
  • Allison , A. J. , Thompson , K. F. and Davis , G. H. Liveweight fertility relationships in Merino and half-bred ewes in a high country environment . Proceedings N.Z. Society of Animal Production . Vol. 34 , pp. 45 – 45 .
  • Blockey , M. A. deB. and Cumming , I. A. Mating behaviour of Merino ewes . Proceedings of the Australian Society of Animal Production . Vol. 8 , pp. 344 – 344 .
  • Fletcher , I. C. 1968 . Interrelationships between hormones, behaviour and fertility in sheep , The University of Sydney . Ph.D. Thesis
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  • Hulet , C. V. , Blackwell , R. I. , Ercanbrack , S. K. , Price , D. A. and Wilson , I. O. 1962 . Mating behaviour of the ewe . Journal of Animal Science , 21 : 870 – 870 .
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  • Lindsay , D. R. and Robinson , T. J. 1961a . Studies on the efficiency of mating in the sheep. 1. The effect of paddock size and number of rams . Journal of Agricultural Science, Cambridge , 57 : 137 – 137 .
  • Lindsay , D. R. and Robinson , T. J. 1961b . Studies on the efficiency of mating in the sheep. 2. The effect of freedom of rams, paddock, size, and age of ewes . Journal of Agricultural Science, Cambridge , 57 : 141 – 141 .
  • McKenzie , F. F. and Terrill , C. E. 1937 . “ Estrus, ovulation, and related phenomena in the ewe ” . In Research Bulletin, University of Missouri, College of Agriculture, Agricultural Experiment Station Vol. 264 ,
  • Parsons , S. D. and Hunter , G. I. 1967 . Effect of the ram on duration of oestrus in the ewe . Journal of Reproduction and Fertility , 14 : 61 – 61 .
  • Restall , B. J. 1964 . The growth and retrogression of the corpus luteum in the ewe . Australian Journal of Experimental Agriculture and Animal Husbandry , 4 : 274 – 274 .
  • Robinson , T. J. 1967 . The Control of the Ovarian Cycle in the Sheep , Sydney University Press .

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