TABLE 1.

Calf rectal temperatures, numbers of M. haemolytica CFU, and percentages of leukocytes recovered from the bronchoalveolar lavage fluid of calves at 3 h and 24 h postinfection

Parameter	Control		M. haemolytica		M. haemolytica + TUL
	3 h	24 h	3 h	24 h	3 h	24 h
Bacteria (CFU/ml)	0	0	1.54 × 106a	2.45 × 106b	8.85 × 105a	6.0 × 101c
Neutrophils (%)	31.3	76.4	90.9d	83.3	91.8d	71.3
Rectal temp (°C)	39.5	39.3	39.5	39.8	39.5	38.9

^aP < 0.05 compared to 3-h control.

^bP < 0.05 compared to 24-h control.

^cP < 0.05 compared to 24-h M. haemolytica.

^dP < 0.05 compared to 3-h control.