Flockandfowl46
Crowing
What to look for when candling duck eggs at various incubation periods...

- 1) Clear when candled may be infertile or had a very early death (when candled at 8 days).
- 2) Embryo with red blood ring early death when candled at 8 days.
- 3) Fertile with red blood vessels after 8 days.
- 4) Red or black staining early death when candled at 8 days.
- 5) Dark outline with ill defined detail possible late death (10 16 days) Give them a little more time though.
- 6) Live embryo with bill in air sack due to hatch in 24 48 hours.
- 7) Normal development of air pocket according to number of days.