Table 3.
Egg quality in Lohmann LSL-CLASSIC laying hens (53–65 weeks of age) fed different energy sources with or without GAA.
| Metabolizable Energy (kcal/kg) |
GAA (%) |
Haugh Units (HUs) |
Egg Shell Resistance (Kgf/cm2) |
Egg Shell Thickness (μm) |
Yolk Color FAN DSM |
|---|---|---|---|---|---|
| 2850 | - | 93.7 | 4.5 | 349 | 11.4 |
| 2800 | - | 93.6 | 4.5 | 348 | 11.2 |
| 2750 | - | 92.9 | 4.6 | 350 | 11.8 |
| p-value | 0.4 | 0.4 | 0.1 | 0.6 | |
| - | 0 | 93.4 | 4.5 | 348 | 11.6 |
| - | 0.08 | 93.5 | 4.5 | 350 | 11.3 |
| p-value | 0.781 | 0.973 | 0.811 | 0.665 | |
| 2850 | 0 | 93.9 | 4.6 | 355 | 11.4 |
| 2800 | 0 | 93.9 | 4.4 | 345 | 11.1 |
| 2750 | 0 | 92.3 | 4.5 | 342 | 12.2 |
| 2850 | 0.08 | 93.6 | 4.4 | 343 | 11.3 |
| 2800 | 0.08 | 93.4 | 4.6 | 350 | 11.2 |
| 2750 | 0.08 | 93.6 | 4.6 | 357 | 11.4 |
| p-value | 0.386 | 0.022 | 0.554 | 0.789 | |
| SEM | 0.506 | 0.028 | 0.005 | 0.263 |
The absence of literals between the means of each column indicates that there were no significant statistical differences (p < 0.05). SEM: standard error of the mean.