Table 5.
Effects of dietary Vit E/Se supplementation on body composition of broilers under heat stress.1
| Treatments2 |
Diet |
Ambient Temperature |
Statistics3 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Control |
Vit E/Se |
P-value |
||||||||||
| Item4 | TN | HS | TN | HS | Control | Vit E/Se | TN | HS | RMSE | Diet | AT | D × AT |
| Carcass, (g) | 2149 | 2110 | 2318 | 2206 | 2130 | 2262 | 2234 | 2158 | 167.1 | <0.001 | 0.029 | 0.289 |
| Tissue, (g) | 1973 | 1929 | 2141 | 2050 | 1951 | 2096 | 2057 | 1990 | 160.9 | <0.001 | 0.042 | 0.471 |
| Lean, (g) | 1572 | 1546 | 1729 | 1633 | 1559 | 1681 | 1651 | 1590 | 137.8 | <0.001 | 0.033 | 0.218 |
| Fat, (g) | 400.9 | 382.9 | 412.2 | 416.9 | 391.9 | 414.5 | 406.5 | 399.8 | 50.88 | 0.032 | 0.524 | 0.277 |
| Tissue (%Fat) | 20.33 | 19.85 | 19.31 | 20.30 | 20.10 | 19.80 | 19.82 | 20.08 | 2.04 | 0.505 | 0.537 | 0.080 |
| BMC, (g) | 25.38 | 25.42 | 26.87 | 26.45 | 25.40 | 26.60 | 26.13 | 25.94 | 2.61 | 0.020 | 0.723 | 0.665 |
| BMD, (g/cm2) | 0.193 | 0.199 | 0.202 | 0.205 | 0.196 | 0.203 | 0.197 | 0.202 | 0.01 | 0.003 | 0.062 | 0.601 |
| Area, (cm2) | 161.1 | 156.5 | 163.5 | 157.8 | 158.8 | 160.6 | 162.3 | 157.1 | 14.86 | 0.538 | 0.089 | 0.848 |
1
Data represent mean values of 24 replicates per treatment.
2
Control: birds fed a basal diet; Vit E/Se: birds fed a basal diet supplemented with 250 mg/kg vitamin E and 1 mg/kg selenium; TN: thermoneutral; HS: heat stress.
3
AT: Ambient Temperature; D: Diet.
4
BMC: bone mineral content; BMD: bone mineral density.