Type

Report

Authors

Michael G. Diskin
Michael G. Keane

Subjects

Veterinary

Topics
breeding values irish cattle breeding federation icbf weight gain carcass traits progeny traits breeding values bvs live weight genetic merit growth genetic index feed intake beef bulls

Evaluation of the Progeny of Beef Sires Differing in Genetic Merit (2005)

Abstract The Irish Cattle Breeding Federation (ICBF) publishes breeding values (BVs) for beef bulls. Historically, BVs were expressed in index form relative to the base population. Sometime ago this changed to expression in units of measurement of trait. This change occurred in the course of this project and was accompanied by some re-ranking of bulls. BVs are published for growth, carcass grades and calving traits. Growth BV isexpressed as carcass weight but there is no indication if this results from higherlive weight gain or from a higher kill-out proportion and there is no indication of anyconsequences for feed intake or efficiency.• The objectives of the project were (i) to compare progeny of bulls of high and lowgrowth genetic index, for growth, feed intake, slaughter traits and carcass traits, (ii)to partition the extra live weight of progeny of high growth index bulls into carcassand non-carcass parts, and (iii) to partition any extra carcass weight of progenyfrom high growth index bulls into its component fat, muscle and bone fractions
Collections Ireland -> Teagasc -> AGRIP End of Project Reports
Ireland -> Teagasc -> Teagasc End-of-Project Reports
Ireland -> Teagasc -> Animal & Bioscience
Ireland -> Teagasc -> AGRIP End of Project Reports
Ireland -> Teagasc -> Animal & Bioscience
Ireland -> Teagasc -> Animal & Grassland Research & Innovation Programme
Ireland -> Teagasc -> Teagasc End-of-Project Reports
Ireland -> Teagasc -> Animal & Grassland Research & Innovation Programme

Full list of authors on original publication

Michael G. Diskin, Michael G. Keane

Experts in our system

1
M G Diskin
Teagasc
Total Publications: 94
 
2
Michael G. Keane
Teagasc
Total Publications: 50