At what stage/days do blood rings usually appear in duck eggs ?

[George678]

Hi I’ve just candled my ducks eggs that are sat under a broody hen , it’s day 9 now and they’re all developing really well and I want to leave her to it now . Will I have to worry about candling again or will I have to keep checking for no blood rings ? Thankyou

 

[Debbie292d]

I'd leave them alone from now on. If one goes bad, sometimes they know it and boot it out. If you were incubating them, I'd just suggest doing it once more before lockdown (3-4 days prior to hatch day.)

Hoping you have a great hatch!

 

[George678]

I'd leave them alone from now on. If one goes bad, sometimes they know it and boot it out. If you were incubating them, I'd just suggest doing it once more before lockdown (3-4 days prior to hatch day.)

Hoping you have a great hatch!

Thankyou