Table 1 Characteristics of the lines and batches of hens studied
From: Nest preference and laying duration traits to select against floor eggs in laying hens
Characteristic | Rhode Island Red | White Leghorn | ||
|---|---|---|---|---|
Batch year | 2018–2019 | 2019–2020 | 2018–2019 | 2019–2020 |
Hens housed | 455 | 552 | 513 | 598 |
Hens analyzed | 403 | 524 | 509 | 471 |
Number of nests in the pen | 100 | 120 | 80 | 120 |
Recording period (weeks of age) | 24–58 | 24–64 | 24–64 | 24–64 |
Nest visits with oviposition | 73,063 | 118,787 | 89,786 | 122,635 |
Floor eggs (%) | 4.6 | 2.9 | 8.9 | 0.8 |