Hi , after eating some fresh oysters , i came up with thebright idea to give the shells to my chickens. Especially since they are kinda run-bound because we had 6 inches of snow yesterday ,and they were inside all day. They really did not go too awful crazy over them , but they really liked the pile of hay and donkey poop that was in the breezway after the donks had spent the night insid e!@!!!!LOL , guess you never know !!!!!