Table 4.
Effect of supplementation with ZnS or ZnAA on digestibility parameters and calculated digestibility coefficients in broilers.
| ZnS | ZnAA | P-value | |
|---|---|---|---|
| Parameters | |||
| Feed intake (FI) (g) | 1,256 ± 49 | 1,168 ± 90 | 0.059 |
| Wet excreta (WE) (g) | 1,797 ± 72 | 1,720 ± 146 | 0.271 |
| WE/FI* | 0.300 ± 0.02 | 0.304 ± 0.01 | 0.731 |
| Digestibility coefficients (%) | |||
| Gross energy | 72.0 ± 2.3 | 71.8 ± 1.7 | 0.878 |
| Crude protein | 58.2 ± 2.9 | 57.1 ± 2.2 | 0.512 |
| Crude fat | 78.8 ± 2.5 | 77.0 ± 4.3 | 0.423 |
| Zinc | 32.7 ± 1.3 | 36.4 ± 2.7 | 0.020 |
ZnS: ZnSO4; ZnAA: zinc amino acid complexes.
Data represent mean ± standard deviation (ZnS, N = 6; ZnAA, N = 5).