Adult Blackrat food question

[badevilcow]

Greets,
A Question to the black rat owners

How many adult mice/what size rat does your adult black rat eat? and what is it's food schedule like? every 7-10? or a little more infrequent. There does not seem to be much information on how much food a fully grown black rat eats/needs... sooooooooo anyway I just saw these posts of people with massive black rat snakes! and my first thought looking at my whiteside was wow, you are gonna be sooooo much bigger than the biggest corn i ever saw Thank you for the good herp keeping info...,

badcow