One of my hens has Vent Gleet, and I know that raw organic yogurt will help get rid of it (along with the other measures I've taken like trimming all her hind feathers back, cleaning the area, etc). I have never fed my chickens yogurt before; do I just set it out in a dish and let them peck at it? Will they eat it this way? Or do I need to mix something in it? Spoon feed the chicken with the Gleet? All feedback on feeding yogurt appreciated!