Table 1.
Treatment group | Embryonic days (ED) of in ovo GL photostimulation | Number of embryos |
---|---|---|
Dark | No photostimulation | 252 embryos (divided onto 3 incubation trays) |
GD0–20 | In ovo GL photostimulation from ED0 to ED20 (day of hatch) | 252 embryos (divided onto 3 incubation trays) |
GD15–20 | In ovo GL photostimulation from ED15 to ED20 | 252 embryos (divided onto 3 incubation trays) |
GD16–20 | In ovo GL photostimulation from ED16 to ED20 | 252 embryos (divided onto 3 incubation trays) |
GD18–20 | In ovo GL photostimulation from ED18 to ED20 | 252 embryos (divided onto 3 incubation trays) |
Abbreviation: GL, monochromatic green light.