Calf Manna is a supplement made for calves, horses, goats, birds, etc., that provides a lot of vitamins and minerals for optimum growth. I have used it on dogs ( English Mastiffs ) also, with great results.It comes in a pellet, which you have to smash if you are going to feed it to young birds. It's well worth it. I would not try to condition a show bird without it. It works wonders for young layers to be also. No problem with soft shells if you've fed CM.Newbie question; what is Calf Manna?