Table 6.

Accuracy and bias of genomic predictions using cows of one breed to predict cows of the other breed and the relationship matrix based on the whole set of 71,726 SNPs (G _W) or the SNPs with effect estimates with the same sign in the two breeds (G _S) or the SNPs with effect estimates with different signs in the two breeds (G _D)

Trait	BB cows: TC cows			TC cows: BB cows
	G W	G S	G D	G W	G S	G D
Accuracy
Navel score	0.40	0.70	−0.47	0.14	0.58	−0.60
Coat score	0.11	0.64	−0.54	0.07	0.53	−0.57
Coat colour	0.05	0.65	−0.62	0.13	0.67	−0.66
Body condition	0.20	0.55	−0.48	0.20	0.65	−0.57
Yearling weight	0.07	0.45	−0.43	0.09	0.43	−0.38
Average	0.17	0.60	−0.51	0.13	0.57	−0.56
Bias
Navel score	1.65	1.48	−2.00	0.61	1.12	−2.03
Coat score	0.92	3.77	−3.16	0.28	0.76	−1.01
Coat colour	0.42	2.29	−2.49	0.83	1.24	−1.38
Body condition	1.42	1.46	−1.85	1.22	2.04	−2.27
Yearling weight	0.57	1.61	−1.72	0.73	1.56	−1.70
Average	1.00	2.12	−2.24	0.73	1.35	−1.68