I just noticed one of my dairy goats munching on the the fur of another dairy goat who was just sitting there letting her do it. It was almost like she was just munching some leaves off of a tree or something...same thing. She would get a mouthful and yank like she was trying to yank a few leave off of a tree. I couldn't see how much fur she was getting. I don't think a lot, but still. She only did it for about 10-12 seconds, but doesn't that seem weird? Could it be a nutritional deficiency of some sort that would make them want to do that? I give them 24/7 access to alfalfa pellets, hay, and minerals, and they get as much grain as they want on the milk stand. Any thoughts?