Table 2 The impacts on egg quality caused by TW I-type IBV infection at 1 day of age
Group | Egg production | Peak laying rate per week (%) | Egg weight (g) | Shape index | Albumen height (mm) | Shell thickness (mm) | Misshapen egg | Watery albumen | Shell-less egg |
|---|---|---|---|---|---|---|---|---|---|
Challenge | 257a | 66.30 | 52.77 ± 4.48 | 76.55 ± 6.21 | 7.07 ± 1.51a | 0.4 ± 0.04 | 6/257 | 15/257 | 1/257 |
Control | 392b | 85.70 | 52.94 ± 5.03 | 75.38 ± 4.12 | 7.89 ± 1.85b | 0.38 ± 0.04 | 0/392 | 0/392 | 0/392 |