Table 5.
Effects of TIACTC1 on carcass characteristics of growing-finishing pigs
| Treatment | ||||
|---|---|---|---|---|
| Item | Control | TIACTC1 | SEM | P value |
| No. of pens | 23 | 23 | — | — |
| Marketing group 1 (day 90) | ||||
| Final farm live weight, kg | 139.4 | 140.4 | 1.28 | 0.41 |
| Hot carcass weight, kg | 105.3 | 105.1 | 1.03 | 0.91 |
| Carcass yield, % | 75.5 | 74.9 | 0.36 | 0.17 |
| Marketing group 2 (day 104) | ||||
| Final farm live weight, kg | 144.3 | 145.4 | 1.25 | 0.25 |
| Hot carcass weight, kg | 110.4 | 111.1 | 0.94 | 0.41 |
| Carcass yield, % | 76.4 | 76.4 | 0.26 | 0.86 |
| Marketing group 3 (days 110–111) | ||||
| Final farm live weight, kg | 141.7 | 143.3 | 1.25 | 0.04 |
| Hot carcass weight, kg | 107.1 | 108.3 | 0.96 | 0.03 |
| Carcass yield, % | 75.6 | 75.6 | 0.19 | 0.96 |
| Marketing group 4 (day 118) | ||||
| Final farm live weight, kg | 132.3 | 135.6 | 1.71 | 0.12 |
| Hot carcass weight, kg | 99.3 | 102.0 | 1.98 | 0.35 |
| Carcass yield, % | 75.6 | 75.7 | 0.71 | 0.92 |
| Overall | ||||
| Final farm live weight, kg | 141.0 | 142.5 | 1.18 | 0.02 |
| Hot carcass weight, kg | 107.3 | 108.4 | 0.89 | 0.05 |
| Carcass yield, % | 76.2 | 76.0 | 0.18 | 0.55 |
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.