I have two goats and 12 chickens. I milk one of the goats for the family (the other goat is just a companion for the first goat). The chickens stay inside the coop/run unless I let them out for a short time. I've heard not to allow the chickens to free-range in the same area as the goats due to the goats picking up a disease from the chicken poo. Is this true? I would like to let the chickens out for a couple of hours at a time just to let them eat some grass and bugs, but I'm not excited about my milk supply getting sick. Any thoughts?