Recently had a vet come by to do the first checkup on my two girls (BPs) and he said they both seemed healthy but slightly skinny. The main one in concern is about 350g, and I feed her a f/t weaned rat pup (30-40g) once a week. She absolutely houses them and acts normally after, as though she could probably eat more. But as I understand it, this is an appropriate amount of food for her.

Anyway, the vet recommended that rather than feeding weaned rats, I feed adult mice of a similar size. He says that adult rodents have more calcium content than juveniles. I don't want to make the switch if I don't have to, however, because a) I've got a ton of frozen rats and b) I don't want my snakes to get spoiled and stop accepting rats, when that's ultimately what I'll want to feed them as adults. I've been extremely lucky getting them off live onto frozen and don't wanna mess that up.

Questions:

Should I make the switch from juvie rats to adult mice for increased calcium content?

If not, should I put a dab of calcium powder (the kind I use for my turtles) on the f/t rat pups? (I have no idea if this would make them hesitate to eat it, or would even be beneficial/harmful.)

Should I be feeding her more than I am? Like maybe twice a week for a couple of months?

The vet didn't seem to think her problem was severe, but he pointed out that he could feel her spine a bit more sharply than would be ideal. Like not a major concern, but he wanted me to be aware.

As always, THANKS!