Table 2.

Effects of TIACTC¹ on the incidence of disease in growing-finishing pigs

	Treatment
Item	Control	TIACTC1	SEM	P value
No. of pens	23	23	—	—
Coughing, total no. of observations/pen
Days 0–6	0.57	0.22	0.127	0.08
Days 7–20 (first feeding period)	0.57	0.43	0.147	0.54
Days 21–48	1.35	1.48	0.248	0.71
Days 49–62 (second feeding period)	0.83	0.78	0.203	0.87
Days 63–89	10.65	9.74	1.164	0.34
Day 90 to end	18.13	16.61	1.059	0.23
Overall (start to end)	32.09	29.26	1.753	0.10
Diarrhea, total no. of observations/pen
Days 0–6	0.26	0.09	0.084	0.19
Days 7–20 (first feeding period)	0.17	0.04	0.061	0.23
Days 21–48	0.13	0.22	0.091	0.49
Days 49–62 (second feeding period)	0.09	0.00	0.029	<0.001
Days 63–89	0.13	0.00	0.038	0.94
Day 90 to end	0.04	0.04	0.031	1.00
Overall (start to end)	0.83	0.39	0.172	0.08
Lameness, total no. of observations/pen
Days 0–6	1.91	1.61	0.332	0.45
Days 7–20 (first feeding period)	11.87	5.39	1.000	<0.001
Days 21–48	19.22	12.35	1.682	<0.001
Days 49–62 (second period)	7.91	5.52	0.771	0.01
Days 63–89	15.87	18.17	1.748	0.07
Day 90 to end	17.65	20.00	2.119	0.08
Overall (start to end)	74.43	63.04	5.378	<0.001

¹TIACTC = 39 mg/kg (35 g/ton) tiamulin + 441 mg/kg (400 g/ton) chlortetracycline fed from days 7 to 20 and days 49 to 62.