What is the largest, and smallest breed of cow?

Question

please indicate (if you can) if it is meat or dairy

and also commercially avaliable

Answer 1

Dexter breed of cattle are the smallest of all British breeds and possibly the smallest breed of cattle worldwide.The dexter breed is a milk cows.

Answer 2

The chianina is the largest breed of beef cattle.

http://www.cattlenetwork.net/Breeds/chia...