Table 4.

Influence of drylot housing or pasture on cow locomotion score, foot angle, claw set, and percent of cows treated for foot lameness as well as calf foot angle and claw set scores

Item	Treatment1		SEM	P-value
	DL	PAST
Cow locomotion2
Initial3	0.6	0.7	0.10	0.33
Mid4	0.8	0.5	0.11	0.07
Weaning5	1.1	0.8	0.13	0.06
Cow foot angle6
Initial	5.9	6.2	0.12	0.09
Mid	6.3	6.1	0.08	0.18
Weaning	6.4	6.4	0.25	0.97
Cow claw set7
Initial	5.7	5.7	0.13	0.69
Mid	6.0	5.9	0.07	0.09
Weaning	6.3	6.2	0.11	0.36
Cows treated8,%
1 treatment	36.0	4.4	–	0.13
2 or more treatments	7.4	0.8	–	0.28
Calf foot angle
Initial	4.5	4.4	0.06	0.31
Weaning	5.1	5.2	0.11	0.56
End of receiving9	5.1	5.0	0.06	0.14
Calf claw set
Initial	4.6	4.6	0.06	0.76
Weaning	4.9	4.8	0.06	0.20
End of receiving	5.2	5.1	0.07	0.33

¹DL cow/calf pairs were housed on concrete lots with open front sheds, cows were limit-fed TMR formulated for maintenance and calves had ad libitum access to TMR, and PAST cows rotationally grazed pasture, calves offered creep feed 3 wk prior to weaning.

²Locomotion score (0 = normal; animal walks normally, 3 = severe lameness) as described from the Zinpro Step-Up Locomotion Scoring System).

³Evaluated at 81 ± 15.3 d postpartum.

⁴Evaluated at 115.9 ± 15.3 d postpartum.

⁵Evaluated at 191 ± 15.3 d postpartum.

⁶Angle scores (1 to 9, in which 1 = extremely straight pasterns and 9 = extremely shallow heel and long toe, as described by the American Angus Association).

⁷Claw scores (1 to 9, 1 to 9, in which 1 = extremely weak, open divergent claw set and 9 = extreme scissor claw and/or screw claw, as described by the American Angus Association).

⁸Percentage of cows treated for foot rot or digital dermatitis.

⁹Evaluated at 240 ± 15.3 d of age at the completion of the receiving phase.