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Validation and Improvement of the Beef Production Sub-index in Ireland for Beef Cattle

Drennan, Michael J
; 
McGee, Mark
; 
Clarke, Anne Marie
; 
Kenny, David A.
; 
Evans, R. D.
; 
Berry, Donagh
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Keywords
Beef production, Cattle breeding, Beef Carcass Index (BCI), Genetic selection
Date
2009-12-01
Collections
Livestock Systems
Animal & Bioscience
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5503-MMcGee-and-MJDrennan-End-of-Project-Report.pdf
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http://hdl.handle.net/11019/871
Citation
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, Beef Production Series No. 88, Teagasc, 2009.
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 metabolites, live animal measurements, carcass traits and carcass value in bull and steer production systems.
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