How often does the white siberian tiger eat?

Answer 1

White tigers are a rare but natural mutation, estimated to be one in ten thousand tigers.

It has only been found naturally occurring among Bengal tigers.

A White siberian is either a natural phenomenon, or a hybrid species made in captivity by selective breeding.

If its a natural, it'd eat maybe twice a week, when it's been successful hunting. If it's in captivity - more likely - it'll eat when fed. Probably Daily.