Black egg yolks

[wofie]

Hi,

I was wondering if anybody had come across black egg yolks. I cracked a fresh egg today and it was black inside and smelt terrible. This was from my own free range chickens, i gave my dad some eggs a few weeks ago and he said one of his was black but i didnt believe him.
Does anyone know what could cause this..

Thanks..

 

[ChickensAreSweet]

http://www.thepoultrysite.com/publications/1/egg-quality-handbook/34/rotten-eggs/

Might want to consider antibiotics? I am sorry I don't know how to advise but the link may be helpful.

 

[aart]

Were the eggs in questions gathered daily, stored at a moderate temperature and broken open for use fairly soon?
Can you identify which bird laid the eggs that were rotten?

If you only have a few hens and they lay unique eggs, sometimes this is possible.....
.....I hope so for your sake as otherwise it will be very hard to figure out which bird has the problem.

 

[wofie]

Hi, thank you both or your reply. We have 30 chickens all look healthy, eggs are collected daily, chicken boxes/houses cleaned every week.

Its really frustrating...as there doesnt seem to be any answers on the internet.