Ever think what all of that high fat content is doing to their heart and other organs? I'll stick with sirloin(mice) versus brisket(rats).

This girl look like she's suffering any? When I rescued her she was 780g at around 3 years old. 1 mouse a month.. After I got her in May 06, she gained over 1500g between then and December 06 on just 3 and sometimes 4 mice a week. That's not on retired breeder mice either.. just normal sized, healthy adult mice. She's now over 2200g and doesn't have much fat on her at all.