New insights into the influence of breed and time of the year on the response of ewes to the 'ram effect'.

@article{Chanvallon2011NewII,
  title={New insights into the influence of breed and time of the year on the response of ewes to the 'ram effect'.},
  author={Audrey Chanvallon and Lola Sagot and Eric Pottier and Nathalie Debus and Davy François and Thierry Fassier and Rex John Scaramuzzi and C. Fabre-nys},
  journal={Animal : an international journal of animal bioscience},
  year={2011},
  volume={5 10},
  pages={
          1594-604
        }
}
Exposure of anoestrous ewes to rams induces an increase in LH secretion, eventually leading to ovulation. This technique therefore is an effective, low-cost and hormone-free way of mating sheep outside the breeding season. However, the use of this technique is limited by the variability of the ewes' responses. In this study, our objective was to understand more completely the origins of this variability and to determine the relative roles of breed, the point in time during anoestrus and the… CONTINUE READING

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