TABLE 6.

Realized (MC) and predicted accuracy of Â_v for different numbers of half-sib progeny per sire and using either the exact prediction (MR exact) or the approximate prediction (MR approx)

	No. of progeny
10			100
	MC	MR exact	MR approx	MC	MR exact	MR approx
Accuracy
0	0.235	0.235	0.235	0.607	0.607	0.607
0.1	0.236	0.236	0.235	0.615	0.615	0.607
0.3	0.243	0.244	0.235	0.633	0.633	0.607
0.6	0.251	0.260	0.235	0.648	0.663	0.607

The exact prediction with multiple regression: , where and are columns of B and G. The approximate prediction (Equation 14): , where and with assumption . ; ; ; .