I have been looking at the post on here about "How much do you adult males weigh" and noticed that someone said their adult male was 900 grams and eating a large weaner rat each week.
The key here is the word Male, you don't feed a females (and you have a female) the same way you would a male, a male should remain lean hence the difference in feeding.

You can't compare adult males with growing juvenile female when it comes to feeding.