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Response to superovulation in Scottish Blackface ewes during seasonal anoestrus

Published online by Cambridge University Press:  05 November 2021

L D Dunne ,
J J Robinson ,
P J Broadbent ,
T G McEvoy  and
D F Dolman
L D Dunne
Affiliation:
Scottish Agricultural College, Ferguson Building, Craibstone Estate, Bucksburn, Aberdeen, AB2 9YA, UK Roslin Institute, Roslin, Midlothian, EH25 9PS, UK
J J Robinson
Affiliation:
Scottish Agricultural College, Ferguson Building, Craibstone Estate, Bucksburn, Aberdeen, AB2 9YA, UK
P J Broadbent
Affiliation:
Scottish Agricultural College, Ferguson Building, Craibstone Estate, Bucksburn, Aberdeen, AB2 9YA, UK
T G McEvoy
Affiliation:
Scottish Agricultural College, Ferguson Building, Craibstone Estate, Bucksburn, Aberdeen, AB2 9YA, UK
D F Dolman
Affiliation:
Scottish Agricultural College, Ferguson Building, Craibstone Estate, Bucksburn, Aberdeen, AB2 9YA, UK
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Extract

A major limitation to the success of genetic improvement programmes using multiple ovulation and embryo transfer is the failure to generate sufficient viable embryos per donor ewe to maintain selection intensities and sustain a low generation interval. Seasonal anoestrus imposes a biological constraint on embryo production in many breeds of sheep. The objective of this study was to investigate the response to superovulation during seasonal anoestrus (April - May) in Scottish Blackface ewes.

Type
Sheep
Information
Proceedings of the British Society of Animal Science , Volume 1996 , March 1996 , pp. 187
Copyright
Copyright © The British Society of Animal Science 1996

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References

Haresign, W., Merrell, B.G. and Richards, R.I.W.A. (1994) Multiple ovulation and embryo transfer in hill ewes. Animal Production, 58: 449 (Abstr).Google Scholar