Some chickens are reluctant to try new foods until they see other chickens eat it first. Even then it might take them some time to learn to like it. Once I got a big carton of cottage cheese in pint containers that had to be used up in a hurry. The first few days I'd open the containers for them to eat out of, and there would be a lot left over at the end of the day. But after a few days they would eat every bit of what was offered.
My birds will eat yogurt right out of the carton, or poured into a pan for them. But they make a big mess of it that way, shaking their heads and spraying yogurt droplets everywhere. Today I emptied a container of yogurt into a pan and mixed some layer pellets into it, and stirred it all together. You could even add a little milk to the mixture, or applesauce, to get the texture you want. My chickens ate every bit, and didn't make as big of a mess as with straight yogurt.
