i cracked an egg open today to give to my dogs since they are to small one egg had the white part sticking to the side and inside of the shell it was black the yolk was a dark orange would that mean the egg was getting rotten that is the first time i have encountered such a thing?
Yes, do not give that egg to the dog. The black area is bacteria growing and feeding on the contents. If it didn't smell, it would have shortly. Collect your eggs daily and if you find eggs in other places besides where you collect them from normally, toss those eggs or inspect them carefully before feeding them to the dog.