Publications

heterogeneous variances and genetics by environment interactions in genetic evaluation of crossbred lambs.	accounting for environmental heteroscedasticity and genetics by environment interaction (g×e) in genetic evaluation is important because animals may not perform predictably across environments. the objectives of this study were to evaluate the presence and consequences of heteroscedasticity and g×e on genetic evaluation. the population considered was crossbred lambs sired by terminal sires and reared under commercial conditions in the uk. data on 6325 lambs sired by charollais, suffolk and texel ...	2015	25407759
Index selection in terminal sires improves early lamb growth.	The use of terminal sires (TS) for crossbreeding is integral to the UK sheep industry where approximately 71% of market lambs are sired by TS rams. Early growth of these crossbred lambs affects profitability. The objectives of this study were: (i) to evaluate the effectiveness of index selection among TS on the BW and ADG of their crossbred offspring; and, (ii) to compare the efficacy of that selection within TS breeds. The most widely used TS breeds in the UK are Charollais, Suffolk and Texel. ...	2011	22021813