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Multiple Ovulation and Embryo Transfer in Hill Ewes: Effects of Mating System on Embryo Quality, and its Relationship With Pregnancy Rates

Published online by Cambridge University Press:  21 November 2017

W. Haresign ,
B. Merrell  and
R.I.W.A. Richards
W. Haresign
Affiliation:
University of Nottingham, Faculty of Agricultural & Food Sciences, Sutton Bonington, Loughborough, Leics LE12 5RD
B. Merrell
Affiliation:
University of Nottingham, Faculty of Agricultural & Food Sciences, Sutton Bonington, Loughborough, Leics LE12 5RD ADAS Redesdale, Rochester, Otterburn, Northumberland NE19 1SB
R.I.W.A. Richards
Affiliation:
University of Nottingham, Faculty of Agricultural & Food Sciences, Sutton Bonington, Loughborough, Leics LE12 5RD ADAS Pwllpeiran, Cwmystwyth, Aberystwyth, Dyfed SY23 4AB
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Extract

A breed improvement programme has been initiated at both ADAS Redesdale (Scottish Blackface) and ADAS Pwllpeiran (Welsh Mountain) to improve carcass conformation of hill ewes. At each site a nucleus flock of 60 ewes has been established and this is being replicated using multiple ovulation and embryo transfer (MOET). The project provides an opportunity to investigate factors affecting the success of MOET under field conditions with an unusually large population of animals maintained under a common management and environment at each site. The current results relate to the effect of mating system on embryo quality, and the relationships between embryo quality and embryo survival.

Type
Sheep Production
Information
Proceedings of the British Society of Animal Production (1972) , Volume 1994 , March 1994 , pp. 87
Copyright
Copyright © The British Society of Animal Production 1994

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References

Robinson, J.J., Wallace, J.A. and Aitken, R.P. (1989). Animal Production 48, 620.Google Scholar