done that one apart from cull the cows.Found calves do a lot better on cows milk there stronger more health and less prone to picking up infections than when they where on powder milk and cost a lot less to produce.
Whatever you feed them on, keep it constant. The same person feeding them counts for a lot
if you are going to all that trouble to get some milk for calves , I don't think it is outrageous for me to put in a 80 point rotary for my 300
Is there a 80 point rotary on eBay?