Our little sale barn calf who was very sick with joint ill, is doing extremely well. runs and jumps, (almost like normal, but not quite) my question---she is 12 weeks old, barely nibbles grass or hay, wont touch calf starter or grain, BUT LOVES her bottle!! She is huge, Id say at least 150 lbs now. What can I do to make her eat more grass or calf starter.? Soon, she will knock me over coming for her bottle!(She gets almost 7 quarts of milk a day, and would drink more if we let her)I need to wean her, but how.?