Reducing the bias of estimates of genotype by environment interactions in random regression sire models

Table 1 Genetics variance components and restricted maximum log-likelihood values in the simulated data, estimated by the different models

Model	Corr intercept-slope^a	Intercept variance^a	Slope variance^a	Average REML^b
Simulated value	0.866	0.300	0.016
Sire model (HOM)	0.937_0.044	0.324_0.025	0.023_0.004	0
Sire model (CLASS)	0.910_0.050	0.325_0.025	0.022_0.004	167
Sire model (IND)	0.858_0.048	0.298_0.017	0.018_0.002	178
Animal-HOM	0.858_0.048	0.298_0.017	0.018_0.002	178

ISSN: 1297-9686