I'm so confused...we got 3 1/2 month old goats. 2 girls, 1 buck, 1 wether. The girls are doing good. The boys are getting a belly. Yesterday I felt the bucks' belly and I was concerned. It was tight and hard and when tapped it sounded like a drum. Although this morning it was soft and mushy. They both race to eat grain and the buck usually wins to eat most of the grain. When should I stop feeding them grain? Can it cause bloat? What's the age that the boys and girls should be off of grain?