I have a question, I have a duck that is sitting on a nest in a dog crate. One duck started laying in there first. Then she abandoned the nest and left her eggs. The next duck right away layed eggs and took over the nest. Today I checked the nest and a bad egg or eggs had busted. And the eggs and straw was covered with the stuff. So while she was in the pond I remove the straw, hosed out the carrier,put new straw in and got a tub of warm water and rinsed off the eggs. Then placed them back in the clean nest. So may concern is that the bad eggs that broke has contaminated the other eggs. She has returned to the nest and is sitting on her nest.