While visiting a local shop recenty it was suggested that I switch my breeder female jcp from large/jumbo f/t rats to guinea pigs to "fatten her up" prior to brumation. While I dont wish to unnecessarily alter her biological processees, this has sparked my curiosity. She is not underweight by no measure ( 7.5 ft/ 18 lbs.). Seems to me obesity would become an issue?
MY QUESTION- Has anyone else ever switched their breeders food to prepare them for brumation and mating? If so, when and from what to what?



