Table 2.

Least squares means for performance and carcass measures of cattle diagnosed with bovine respiratory disease (BRD) and those considered healthy

Item1	Untreated	SE	Treated	SE	Diff2	SE
BRD incidence
Acclimation ADG,** kg/d	1.50	±0.02	1.22	±0.03	0.28	0.03
Overall ADG,** kg/d	1.45	±0.01	1.39	±0.01	0.06	0.01
Final BW,** kg	527.0	±1.5	515.8	±2.3	11.1	2.0
HCW,** kg	319.6	±1.2	310.4	±1.9	9.1	1.7
Fat,** mm	12.35	±0.14	11.43	±0.23	0.91	0.21
MarbS3*	5.59	±0.04	5.49	±0.06	0.11	0.05

¹BRD incidence = untreated (100) vs. treated (200). Acclimation ADG = early feeding period; overall ADG = total feedlot period; final BW = last BW before slaughter; fat = subcutaneous fat cover; and MarbS = marbling score.

²Diff = untreated minus treated.

³2.00 = practically devoid⁰⁰; 3.00 = traces⁰⁰; 4.00 = slight⁰⁰; 5.00 = small⁰⁰; 6.00 = modest⁰⁰; 7.00 = moderate⁰⁰; 8.00 = slightly abundant⁰⁰; 9.00 = moderately abundant⁰⁰; 10.00 = abundant⁰⁰.

*P ≤ 0.05; **P ≤ 0.01.