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. 2020 Nov 28;98(12):skaa381. doi: 10.1093/jas/skaa381

Table 2.

Production performance and descriptive statistics for indicators of BRD used in LCA of feedlot cattle considering the impact of BRD

Variables Parameters
No. of animals 270
Induction weight, kg/animal, mean ± SD 434 ± 51.6
Exit weight, kg/animal, mean ± SD 638 ± 85.2
Days on feed at the first BRD pull, mean ± SD 21.1 ± 9.21
ADG to the first BRD pull, kg/animal/d, mean ± SD 1.22 ± 2.013
Overall ADG, kg/animal/d, mean ± SD 1.81 ± 0.50
Visual signs of BRD, number (%)
 Score = 0 143 (53.0)
 Score > 0 127 (47.0)
Number of BRD treatments, number (%)
 0 or 1 treatments 228 (84.4)
 >1 treatments 42 (15.6)
Rectal temperature, oC, number (%)
 <40 °C 184 (68.2)
 ≥40 °C 86 (31.9)
CALA, number (%)
 Score < 2 101 (37.4)
 Score ≥ 2 169 (62.6)
Lung consolidation at slaughter, number (%)
 < 10% total lung consolidated 203 (90.2)
 ≥ 10% total lung consolidated 22 (9.8)
Pleural lesions at slaughter, number (%)
 Score ≤ 2 221 (81.9)
 Score 3 49 (18.2)
BHV1 serostatus, number (%)
 Positive 126 (47.0)
 Negative 142 (53.0)
BVDV serostatus, number (%)
 Positive 181 (67.5)
 Negative 87 (32.5)
BRSV serostatus, number (%)
 Positive 256 (95.5)
 Negative 12 (4.5)
BPI3 serostatus, number (%)
 Positive 247 (92.2)
 Negative 21 (7.8)
BAdV serostatus, number (%)
 Positive 239 (89.2)
 Negative 29 (10.8)
BHV1 swab result at the first BRD pull, number (%)
 Negative 245 (90.7)
 Positive 25 (9.3)
BVDV swab result at the first BRD pull, number (%)
 Negative 262 (97.0)
 Positive 8 (3.0)
BRSV swab result at the first BRD pull, number (%)
 Negative 262 (97.0)
 Positive 8 (3.0)
BPI3 swab result at the first BRD pull, number (%)
 Negative 269 (99.6)
 Positive 1 (0.4)
BCoV swab result at the first BRD pull, number (%)
 Negative 263 (97.0)
 Positive 7 (2.6)