One day.
When it is ready. It will come back sometime though. And when it does we will notify you.
Calves don't grow into cows. They stay small and you brush them as opposed to milking them.
No. Animals don't die on Farmville.
You can get cows on Farmville when your Farmville friends gift them to you or by adopting them when they wander across a neighbors farm and that neighbor posts a notification about it allowing you to adopt the lost cow.
To harvest cow on farmville you need to click it. Your character will then go over to the cow and harvest it.
It stays a calf forever
A friend/neighbour on FarmVille must send it as a gift! :-) Hope this helps!
It gives you 5 farmville cash each day
Because you can milk it.
You will need 2 milks from a cow to make butter in Farmville 2.
You probably just collect milk?
You cant.