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Observations on the onset of the breeding season and on the oestrous cycle of the Welsh Mountain ewe

Published online by Cambridge University Press:  27 March 2009

J. S. M. Hutchinson ,
P. J. O'Connor  and
H. A. Robertson
J. S. M. Hutchinson
Affiliation:
Department of Biological Chemistry, University of Aberdeen
P. J. O'Connor
Affiliation:
Department of Biological Chemistry, University of Aberdeen
H. A. Robertson
Affiliation:
Department of Biological Chemistry, University of Aberdeen
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Extract

1.Within a flock of 55 Welsh Mountain ewes maintained under lowland conditions the first ewe came into oestrus on the 14th October. The mean cycle length of 44 normal cycles was 16 days 3 hr.

2. The onset of oestrus as assessed by the time of mounting of the ram does not appear to be evenly distributed throughout the day (24 hr.).

Type
Research Article
Information
The Journal of Agricultural Science , Volume 63 , Issue 1 , August 1964 , pp. 59 - 60
Copyright
Copyright © Cambridge University Press 1964

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References

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