Table 2.

Summary statistics of phenotypes used

	Mean	Variance	Min	Max
German Fleckvieh bulls
Milk yield DYD	1 779.16	219 257.40	-852.48	3 372.67
Protein yield DYD	59.34	214.18	-23.56	108.65
Fat yield DYD	59.34	320.81	-39.12	137.11
Holstein-Friesian bulls
Milk yield DYD	707.44	434 324.64	-852.09	3 706.01
Protein yield DYD	41.88	391.42	-24.19	104.57
Fat yield DYD	41.14	645.42	-45.81	139.74
Holstein-Friesian cows
Milk yield YD	3.26	26.13	-14.36	19.37
Protein yield YD	0.91	1.54	-4.86	4.23
Fat yield YD	0.21	0.50	-4.17	1.80

DYD = daughter yield deviations, YD = yield deviations.