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The effects of herbage allocation and concentrate supplementation on the performance of replacement ewe lambs offered extended grazed pastures

Published online by Cambridge University Press:  23 November 2017

T.W.J. Keady
Affiliation:
Teagasc, Animal Production Centre, Athenry, Co Galway, Ireland
J.P. Hanrahan
Affiliation:
Teagasc, Animal Production Centre, Athenry, Co Galway, Ireland
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Extract

Recent studies at this centre (Flanagan 2003, Keady et al. 2006) have shown that grazing swards in the winter (extended grazing), either in mid, late or throughout pregnancy, provides a low-cost system for wintering ewes. With decoupling of subsidy from production post Mid Term Review of the Common Agricultural Policy it is essential to improve efficiency and reduce costs of production. One of the major costs in sheep production is the cost of rearing replacements. The aim of the present study was to evaluate the effect of herbage allowance and concentrate supplementation on animal performance during extended grazing and on compensatory growth during the subsequent grazing season. Furthermore the potential herbage allowance sparing effect of concentrate supplementation was also determined.

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Poster Presentations
Copyright
Copyright © The British Society of Animal Science 2007

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References

Flanagan, S. (2003). Indoor and outdoor lambing systems compared. Agricultural Research Forum, p79.Google Scholar
Keady, T.W.J, Hanrahan, J.P. and Flanagan, S. (2006). The effects of flock management during mid and late pregnancy on lamb birthweight and subsequent performance. Agricultural Research Forum, p58.Google Scholar

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