on what day can you candle a goose eggs and see if they are fertile ?

[poultrykeeper08]

The title says it all . I have had my eggs in the bator for 3 days now .

 

[Broke Down Ranch]

With a good strong flashlight I can usually tell by day 5-7. The yolk will start to spread and seem to get bigger and more flat instead of a perfect circle. You can tell by the yolk shape before you even start seiing veins..