Safe to eat eggs after a few days under duck?

[Alaskaduck]

Duck egg question: I left town for 5 days. One duck was already broody and sitting on 9 eggs. My duck sitter didn’t collect any eggs from our other two ducks. While I was gone, they all laid in the broody girls’ nest. Came home to two ducks happily sharing one nest full of 26 eggs. I had marked the original 9 so I know which ones those were. Question is, are the other 17 safe to eat? Because they were nice and warm when I collected them. Since all 3 ladies are still laying daily, some of those 17 would have been under a mama the full 5 days, some 4 days etc. Safe to eat if kept warm that long?

 

[BlueBaby]

I think that @KikisGirls would be best to answer that question. She had some balute duck eggs not long ago.

 

[Granny Hatchet]

Duck egg candling - Day 5 - YouTube
▶ 0:39

 

[Granny Hatchet]

It wont hurt you to physically eat them no but you will be eating an embryo if they are fertile. If they are not fertile I imagine they would make you very sick. Thats the heart beat you see in the video along with blood veins of day 5.

 

[chickens really]

I sure would not eat them......