Hairless rats.

[Kathleen]

I have 3 hairless, 2 males and a female, and none of them have health problems. My last hairless girl, Harry, lived to be over 4 years old and was VERY healthy(if you didn't count the mammary tumors and subsequent surgeries 4-5 times) until her liver just failed from old age.

Just from looking, your two girls look healthy, just a bit thin, especially the girl in the hammock. Hairless rats have very high metabolisms to be able to keep their body temp up, so they require a bit more protein and a bit more fat in their diet to keep up. What is their diet like?

Woo, this topic came back to life without my noticing.

They're always provided with plenty of those food blocks from the pet store. *digs out bag* Fortified nibbles... lol... I also give them fresh veggies and sugarless cereal as treats from time to time.

They've actually always been small and rather peaky-looking. But they've got clean bills of health and they're very active and friendly.