I have a three week old calf. When born it refused to nurse its mother. Mother was milked 2 times daily for first 2 weeks and calf bottle feed. The calf is now on milk replacer and still doesnt want to nurse, even the bottle, but does so only after nipple is inserted with force. Will not hunt for nipple when removed. Good urine output and normal manure. The calf is growing well, but moves around slow. Tried different brands of milk replacer,store bought milk and milk straight from the cow. She refuses them all. Any suggestions?