Table 3.

Descriptive statistics of data

Item	n	Mean	SD	Minimum	Maximum
Calving rate1	1,350	0.89	0.31	0	1
Weaning rate1	1,274	0.84	0.37	0	1
Birth weight, kg	1,348	34.77	5.32	12.27	61.82
Weaning weight, kg2	1,270	220.58	34.33	111.36	327.27
Weaning BCS	1,160	5.15	0.42	4	6
Cow weight, kg3	105	495.35	75.53	275.0	715.45
Cow BCS3	105	4.84	0.56	4	6
Age cow left herd, yr4	143	11.32	4.47	2	19
Incisor condition5
Model 16	259	0.84	0.36	0	1
Model 27	259	0.35	0.47	0	1

¹Proportion of cows that gave birth and weaned a calf of those that were exposed to bulls in the respective breeding season.

²Weaning weight reported as adjusted 205-d weight.

³Cow weight and condition score are represented for the year 2001 when cows were 8 and 9 yr.

⁴The age of the cow when she was removed from the herd is the age left herd.

⁵Incisor condition was scored as a binary trait with 2 different models where simple means were calculated. Cows missing no incisors were called solid mouth, those missing one or more incisors were called broken mouth, and those with no incisors remaining were called smooth mouth.

⁶Broken and solid mouths were scored a 1 and smooth mouths 0.

⁷Solid mouths were scored a 1 and broken and smooth mouths 0.