Table 3. Means of carcass yield, backfat thickness, loin depth, and lean meat percentage and yield according to the experimental treatment.
| Variable | Treatmenta | CV | P value | P value (R2)b | ||||
|---|---|---|---|---|---|---|---|---|
| PC | NC | 1,000 FYT | 2,000 FYT | 3,000 FYT | ||||
| Carcass weight (kg) | 80.00 | 80.02 | 82.29 | 81.66 | 82.40 | 4.25 | 0.451 | NS |
| Carcass yield (%) | 71.00 | 72.85 | 72.90 | 71.89 | 70.93 | 4.39 | 0.576 | NS |
| Backfat thickness (mm) | 16.15 | 17.70 | 18.00 | 17.42 | 17.37 | 10.15 | 0.299 | NS |
| Loin depth (mm) | 60.80 | 64.28 | 63.10 | 60.98 | 62.40 | 4.97 | 0.159 | NS |
| Lean meat (%) | 55.14 | 54.30 | 53.96 | 54.18 | 54.37 | 2.51 | 0.506 | NS |
| Lean meat (kg) | 44.05 | 43.44 | 44.37 | 44.21 | 44.79 | 5.37 | 0.846 | NS |
PC = positive control. NC = negative control. FYT = phytase units. CV = coefficient of variation. NS = not significant.
aMeans followed by different letters on the same row are significantly different by Tukey’s test at 5%.
bLinear response to increasing phytase levels in the diet. R2 represents the coefficient of determination.