Jeeze, I guess my girl is a monster. I got her Sept 2011, I didn't get an official age when I bought her but by my guess she couldn't have been more than 3-4 months. As of weighing her today, she's at 1,340g (this isn't her 'empty' weight though).

I've been feeding her appropriate-sized meals every week, but I breed my own rats (which are fed a standard lab block), so maybe food quality has been playing a role... or she's just a beast xD She's almost never refused a meal, her feeding response is fantastic. I'd been wondering if her rate of growth was normal, it seems she's on the large end of things.