Table 1. Effect of adding protected amino acid ligands on feed intake and weight gain of calves.
| Parameter | Treatments | SEM | p value | |||||
|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | |||
| Daily weight gain (kg) | 1.15 | 1.22 | 1.24 | 1.28 | 1.25 | 1.12 | 0.032 | 0.681 |
| Daily feed consumption (kg) | 5.75b | 6.10ab | 6.38a | 6.44a | 6.30a | 5.99b | 0.089 | 0.194 |
| Conversion factor | 5.01 | 5.01 | 5.13 | 5.04 | 5.05 | 5.35 | 0.185 | 0.868 |
1 – in each row the numbers with different letters have significant difference (p <0.05).
2 – Treatment 1) Control 2) free amino acid 3) Methionine and lysine benzaldehyde 4) Methionine and glutaraldehyde lysine 5) Methionine and lysine sucrose 6) Methionine and lysine vanillin.