That's irrelevant. There's a reason why it says "newcomer" on the feed box because it's for the new calf that you just got. So, use the feed box or, as you put it, "put the feed box down" for that calf.
Unless you can better specify your question or explain more on the discussion page to this question, that's as good an answer I can give you.
calfs
the animals they come from...veal is from calfs
Because they do not want the heffers to have calfs
No. I'm level 45 and the calfs are still calfs. I was kind of hoping they'd grow too.
till 2 years they stay as calfs
Coyotes can and will kill calfs (small cows) and other animals. At times there gets to be to many coyotes and some need to be killed in order to keep other animals safe.
cowpox
Yes, using a Nursery Barn you can get from the Market. Put calfs and other baby animals in the Nursery Barn, every time you tend the Barn, your animals have a chance of growing into their adult versions.
Calfs
It depends. Some, like lambs and calfs, are very young, while things like chickens and cows can be fairly mature.
quads calfs
with