We have a 2wk old angus calf..the first calf born to a 2yr old heifer. He is not putting on much weight. We have watched him nurse and he goes from one teat to another bumping his head against the bag. Eventually, from the tail wag, we see he does get some milk..and he may even have some on his face. The heifers bag is rather floppy and it and the teats don't ever look full like the older cows w/calves. Is this normal? Is there something we can do to make her produce more milk? Should we supplement her feedings with powdered milk? Or...just be patient? He is lively, running, bucking etc. he just spends a lot of time trying to get something to eat. If he would only check out the other cows...they have more than enough milk. Suggestion?