Table 10.
Effect of supplementing exogenous protease (ProAct 360) on carcass yield and relative organ weights in broiler chickens.
| Items | PC | NC | PA | SE | P value |
|---|---|---|---|---|---|
| Body weight, g | 1970.83 | 1965.00 | 1973.33 | 14.26 | 0.976 |
| Carcass yield, % | 72.60 | 72.73 | 72.92 | 0.324 | 0.789 |
| Relative organ weight, % | |||||
| Liver | 2.90 | 2.74 | 2.79 | 0.245 | 0.885 |
| Heart | 0.53 | 0.58 | 0.52 | 0.042 | 0.574 |
| Spleen | 0.10 | 0.08 | 0.09 | 0.007 | 0.417 |
| Gastrointestinal tract | 6.17 | 6.47 | 6.20 | 0.291 | 0.732 |
Abbreviations: NC, basal diet formulated with full ProAct 360 matrix value at 50 g/MT but without addition of ProAct 360; PA, NC + 50 g/MT ProAct 360; PC, basal diet; SE, standard error.
Each value is the mean value of 6 replicates (5 broiler/cage).