Is there any problem in feeding a boiled egg to a dog? Seems that I've read about some problem with raw eggs being fed to dogs - it ties up some vitamin or something.
Egg whites contain a protein which ties up the vitamin, biotin. Many people avoid feeding their dogs raw eggs for this reason. Funny thing is, the yolk contains more than enough biotin to make up for any that the egg white binds to. So feeding raw egg whites alone is a problem; raw whole eggs however are alright. Boiling the egg destroys the biotin-binding protein and kills off any salmonella, so the safest thing is to cook them before feeding to your dog but I wouldn't flip out about feeding the occassional whole raw egg.