Table 1. General statistics for milk traits

Traits	Observations	Mean	SD	Minimum	Maximum
Milk yield (kg/day)	1,498,232	34.8	8.47	11	58
Primiparous	527,740	31.1	6.12	11	58
Multiparous	970,492	36.8	8.84	11	58
FPCM (kg/day)	1,498,232	33.8	7.99	8.27	71.0
Primiparous	527,740	30.4	5.96	8.67	70.8
Multiparous	970,492	35.7	8.31	8.27	71.0
Milk fat (%)	1,498,232	3.89	0.71	1.99	5.91
Primiparous	527,740	3.91	0.70	1.99	5.91
Multiparous	970,492	3.89	0.72	1.99	5.91
Milk protein (%)	1,498,232	3.22	0.31	2.35	4.14
Primiparous	527,740	3.23	0.29	2.35	4.14
Multiparous	970,492	3.22	0.31	2.35	4.14
MUN (mL/dL)	1,498,232	13.4	3.57	−1.70	376.0
Primiparous	527,740	13.6	3.56	−0.70	375.0
Multiparous	970,492	13.3	3.56	−1.70	104.6
SCS (score)	1,498,232	2.66	1.60	−1.64	7.21
Primiparous	527,740	2.39	1.42	−1.64	7.21
Multiparous	970,492	2.80	1.68	−1.64	7.21

FPCM, fat-protein corrected milk yield; MUN, milk urea nitrogen; SCS, somatic cell scores.