Table 1.
Mean values (x̅) and standard deviations (± SD) for the egg weight, egg shape index and egg surface area.
| Factor | Indicator | Egg weight (g) | Egg shape index (%) | Egg surface area (cm2) |
|---|---|---|---|---|
| Group1 | A | 53.45 | 74.29b | 67.19 |
| B | 53.07 | 75.41a | 66.84 | |
| ± SD* | ± 6.41 | ± 3.22 | ± 5.37 | |
| p value | 0.441 | 0.002 | 0.291 | |
| Age of hens (weeks) | I (19) | 44.54d | 75.31ab | 59.67d |
| II (24) | 52.05c | 75.79a | 66.00c | |
| III (29) | 53.31c | 73.70b | 67.18c | |
| IV (34) | 55.57b | 75.14ab | 69.73b | |
| V (39) | 59.66a | 74.31b | 72.40a | |
| SD | 3.86 | 3.15 | 3.24 | |
| p value | 0.000 | 0.000 | 0.000 | |
| Interaction | 0.717 | 0.121 | 0.650 |
Different letters (a, b) indicate a significant difference between treatments (A–B) and periods (I–V) at p < 0.05.
*Standard deviation.
1TREATMENT: A, control with soybean meal; B, experimental with yellow lupin, narrow-leaved lupin and peas.