What's a "large just weaned" rat? I've heard of large rats, and I've heard of weaned rats, but never heard of a large weaned rat. Wouldn't a large, just weaned rat essentially be considered a "small rat"...?
to the OP...don't worry...she'll go on a fast soon enough and you'll have plenty of time to worry about what to feed her when she's 5000 grams!
Is it normal for a healthy and regularly feeding snake to fast at some point? If so, What causes this, and how long can it typically last?