Got calf at 3 days old and bottle feed. Now he's about 1 mo. old. He ate fine at first but has progressively gotten slower. He wants to suck but is having trouble doing so. It takes him an hour to eat a bottle. He doesn't seem interested in grain or hay. His tongue hangs out of the right side of his mouth. Slobbers and foams ALOT! Other than that he is a regular cow.