Table 3.

Pearson correlation coefficients between clinical signs associated with respiratory disease and lung consolidation detected by ultrasonography simultaneously in 153 recently weaned beef calves

	Lung consolidation2 ≥ 1 cm2
Clinical scores1	TUS7	TUS14	TUS28
Fever (>39.6 °C)	0.19*	0.13	0.04
Cough	0.07	0.09	0.02
Nasal discharge	−0.13	−0.04	−0.10
Eye discharge	−0.03	0.02	0.00
Ear drooping	0.30	0.02	−0.04

¹Clinical sign associated with BRD.

²Lung consolidation ≥ 1 cm² detected by TUS on days 7, 14, and 28.

*P-value < 0.05.