Elsewhere in the world, rat meat is considered diseased and unclean, socially unacceptable, or there are strong religious proscriptions against it. Islam and Kashrut traditions prohibit it, while both the Shipibo people of Peru and Sirionó people of Bolivia have cultural taboos against the eating of rats.
Rats are a common food item for snakes, both in the wild, and as pets. Captive-bred ball pythons, in particular, are fed a diet of mostly rats. Rats, as food items, are available from many suppliers individual snake owners, as well as to large reptile zoos. In Britain, the government in 2007 ruled out the feeding of any live mammal to another animal. The rule says the animal must be dead (frozen) then given to the animal to eat. The rule was put into place mainly because of the pressure of the RSPCA and people who found it cruel. (wikipedia)