I just got two watusi calves today. They are 3 months old according to the fellow I got them from. I think they were still nursing from their moms. There was no grass in the pen where they were but I think he fed hay everyday to the group. Do I need to try and get them on a milk supplement? I have good pasture so they will be exposed to grass. I know they need a suppplemental feed but what kind do I give them. Do they need a calf grower/starter? They are kind of slim and also probably need worming. These are the first two cows I have ever owned. Thanks for any help. Please rush. They do not seem to be sick in any way that I am aware of yet. I want to make sure they have what they need.