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Validation and Improvement of the Beef Production Sub-index in Ireland for Beef Cattle
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Date
2008-01-01
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Drennan, M.J., McGee, M., Clarke, A.M., Kenny, D.A., Evans, R.D., Berry, D.P. Validation and Improvement of the Beef Production Sub-index in Ireland for Beef Cattle, End of Project Report, Teagasc, 2008
Abstract
The objectives of the following study were to:
a. Quantify the effect of sire genetic merit for BCI on:
1. feed intake, growth and carcass traits of progeny managed under bull or steer beef production
systems.
2. live animal scores, carcass composition and plasma hormone and metabolite concentrations in their
progeny.
b. Compare the progeny of :
1. Late-maturing beef with dairy breeds and
2. Charolais (CH), Limousin (LM), Simmental (SM) and Belgian Blue (BB) sires bred to beef suckler
dams,
for feed intake, blood hormones and