gray feet on hen

[kscottjoyce]

I have a hen with feet that have turned gray. They used to be yellow till a month ago. Seems healthy otherwise, but stopped laying. She is about a year old. Was suggested that it could be from a vitamin deficiency. Anyone have any ideas?
Thank you so much.

 

[madabouthens]

it is a defficincy off something i cant check because im on my phone or maybe it has been sliced open and bacteria have got in not sure sorry