Table 2.
Effects of dietary AOP supplementation on the production performance of laying breeder hens.
| Items | Treatments |
SEM |
p-value |
||||
|---|---|---|---|---|---|---|---|
| CON | AOP1 | AOP3 | AOP | Linear | Quadratic | ||
| Laying rate (%) | 63.52b | 64.28b | 66.36a | 0.448 | 0.016 | 0.006 | 0.403 |
| Average egg weight (g) | 43.77b | 44.22ab | 44.82a | 0.017 | 0.023 | 0.007 | 0.802 |
| Percentage of qualified eggs (%) | 95.51 | 95.92 | 96.30 | 0.252 | 0.465 | 0.224 | 0.983 |
| Feed conversion ratio (g/g) | 3.51a | 3.29b | 3.24b | 0.047 | 0.039 | 0.018 | 0.320 |
a-b
Means within a row with no common superscript differ significantly (p < 0.05). Values are mean ± SEM of 84 hens. Abbreviations: CON, control group, basal diet; AOP1, basal diet supplemented with 1 g/kg AOP; AOP3, basal diet supplemented with 3 g/kg AOP.