Table 3.
Effect of high protein (CON) and low protein (LP) diets, during growing (P1) and finishing (P2) phases, on the digestibility of dry matter, crude protein, neutral detergent fiber and starch (DMD, CPD, NDFD and starch_D, respectively) by young Charolais beef bulls at Rovigo Province, Italy. Data are the means of 5 or 6 pens and 9 to 10 animals per pen.
| Items | CON | LP | P1 | P2 | CON | LP | SEM | p-Value | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| P1 | P2 | P1 | P2 | Diet | Phase | Diet × Phase | ||||||
| DMD | 62.0 | 61.8 | 64.8 | 59.0 | 64.9 | 59.2 | 64.8 | 58.8 | 1.28 | 0.861 | 0.001 | 0.917 |
| CPD | 52.8 | 50.6 | 58.8 | 44.6 | 60.3 | 45.2 | 57.3 | 43.9 | 2.26 | 0.410 | <0.001 | 0.655 |
| NDFD | 42.1 | 43.4 | 45.5 | 40.1 | 44.3 | 40.0 | 46.7 | 40.2 | 1.56 | 0.406 | 0.006 | 0.484 |
| Starch_D | 96.4 | 96.5 | 95.5 | 97.4 | 95.3 | 97.5 | 95.8 | 97.2 | 0.70 | 0.878 | 0.022 | 0.579 |