Table 7.
Effects of dietary zinc (Zn) supplementation on the Zn deposition in egg yolk, tibia, and blood of duck breeders (40 wk).
| Zn supplemental levels (mg/kg)1 |
P-value |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Variables | 0 | 10 | 20 | 40 | 80 | 160 | SEM | ANOVA | Linear | Quadratic |
| Zn content in yolk (mg/kg) | 31.7 | 33.6 | 33.0 | 33.3 | 35.9 | 34.7 | 0.34 | 0.005 | 0.016 | 0.065 |
| Zn content in tibia (mg/kg) | 316 | 314 | 353 | 366 | 379 | 361 | 6.2 | 0.002 | 0.012 | <0.001 |
| Zn content in blood (mg/kg) | 6.26 | 6.76 | 6.76 | 7.04 | 6.59 | 6.60 | 0.09 | 0.199 | 0.991 | 0.405 |
1
Mean of 6 replicates (2 ducks per replicate) per treatment.