Table 3.
Effects of small peptide supplementation on growth performance and nutrient digestibility in Simmental beef cattle (n = 10).
| Items | Experimental treatments | SEM | P-value | |||||
|---|---|---|---|---|---|---|---|---|
| CON | 0.20% | 0.40% | 0.60% | 0.80% | 1.00% | |||
| IBW (kg) | 335.8 | 337.2 | 334.7 | 336.9 | 331.8 | 335.2 | 14.16 | 0.683 |
| FBW (kg) | 609.4 | 614.4 | 620.9 | 639.3 | 634.2 | 631.3 | 18.27 | 0.104 |
| ADFI (kg/d) | 8.31 | 8.47 | 8.59 | 8.65 | 8.69 | 8.78 | 0.18 | 0.267 |
| ADG (kg/d) | 1.52 | 1.54 | 1.59 | 1.68 | 1.68 | 1.65 | 0.073 | 0.084 |
| FCR | 5.47a | 5.50a | 5.40a | 5.15b | 5.17b | 5.34a | 0.63 | 0.037 |
| DM (%) | 58.66 | 59.21 | 59.46 | 60.23 | 59.64 | 58.31 | 1.094 | 0.216 |
| NDF (%) | 64.24b | 64.18b | 64.34b | 65.97a | 65.85a | 64.21b | 0.541 | 0.043 |
| ADF (%) | 52.62 | 53.33 | 53.89 | 55.21 | 55.13 | 54.36 | 1.273 | 0.338 |
| EE (%) | 66.23 | 66.31 | 67.29 | 66.88 | 67.21 | 66.41 | 3.632 | 0.527 |
| CP (%) | 63.37 | 63.76 | 63.23 | 64.12 | 64.34 | 63.27 | 1.113 | 0.143 |
| Ca (%) | 44.09 | 44.12 | 44.78 | 44.96 | 45.21 | 45.06 | 2.371 | 0.356 |
| P (%) | 43.32 | 42.21 | 43.37 | 42.01 | 42.64 | 42.63 | 1.484 | 0.316 |
a,b Means within a row with different letters differed significantly (p < 0.05); SEM, standard error of the mean; CON, control diet; DM, dry matter; NDF, neutral detergent fiber; ADF, acid detergent fiber; EE, ether extracts; CP, crude protein; Ca, calcium; P, phosphorus.