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Effect of herbage allowance and concentrate feed level offered to ewes in late pregnancy on ewe and lamb performance

Published online by Cambridge University Press:  20 November 2017

A.F. Carson ,
L.E.R. Dawson  and
A.S. Laidlaw
A.F. Carson*
Affiliation:
The Agricultural Research Institute of Northern Ireland, Hillsborough, Co. Down, BT26 6DR, U.K.
L.E.R. Dawson
Affiliation:
The Agricultural Research Institute of Northern Ireland, Hillsborough, Co. Down, BT26 6DR, U.K.
A.S. Laidlaw
Affiliation:
The Agricultural Research Institute of Northern Ireland, Hillsborough, Co. Down, BT26 6DR, U.K.
*
Email: Alistair.Carson@dardni.gov.uk
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Extract

Lower cost systems of sheep production, with reduced labour inputs, require examination for the future viability of the sheep industry. Carson and Dawson (2002) demonstrated that ewes lambing under grass-based systems had similar lamb outputs and survival rates to ewes lambing under labour intensive, indoor lambing systems. Although there is a significant amount of information is available on the effect of conserved forage on ewe performance in late pregnancy, there is a scarcity of information on the effect of grazed grass and concentrate supplementation at grass in late pregnancy on subsequent ewe performance. The aims of this study were to investigate the effects of herbage allowance and concentrate feed level during late pregnancy on ewe live weight and body condition change and lamb growth and development.

Type
ISAE/BSAS
Information
Proceedings of the British Society of Animal Science , Volume 2003 , 2003 , pp. 63
Copyright
Copyright © The British Society of Animal Science 2003

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References

Carson, A.F. and Dawson, L.E.R. (2002). The effect of management system at lambing and flock genetics on lamb output on lowland sheep farms. Proceedings of the British Society of Animal Science, pp. 53 Google Scholar
Mayes, R.W., Lamb, C.S. and Colgrove, P.M. (1986). The use of dosed and herbage n-alkanes as markers for the determination of herbage intake. Journal of Agricultural Science, Cambridge 107: 161– 170 CrossRefGoogle Scholar