Table 3.
Effects of curcumin on egg quality in laying hens.
| Item | Control | 100 mg/kg | 150 mg/kg | 200 mg/kg |
|---|---|---|---|---|
| Shape index | 1.31 ± 0.04 | 1.28 ± 0.03 | 1.28 ± 0.04 | 1.30 ± 0.08 |
| Eggshell thickness (mm) | 0.288 ± 0.02B | 0.352 ± 0.04A | 0.355 ± 0.02A | 0.365 ± 0.02A |
| Eggshell strength (kgf/m2) | 1.61 ± 0.32C | 2.60 ± 0.56B | 2.84 ± 0.53A,B | 3.06 ± 0.55A |
| Albumen height (mm) | 7.14 ± 2.29b | 8.72 ± 1.42a | 7.98 ± 0.61a,b | 7.91 ± 2.11a,b |
| Yolk color | 3.12 ± 0.53 | 3.00 ± 0.47 | 3.09 ± 0.50 | 3.21 ± 0.68 |
| Yolk weight(g) | 14.50 ± 1.30 | 14.17 ± 1.21 | 14.78 ± 1.12 | 14.19 ± 1.11 |
| Haugh unit | 82.16 ± 9.12 | 91.93 ± 5.53 | 89.83 ± 3.19 | 87.54 ± 5.02 |
a,bMeans within a row with different superscripts differ significantly (P < 0.05).
A,BDifferent capital superscripts within a row indicate a highly significant difference(P < 0.01).
Values are mean ± SE of 20 eggs.