Do gerbils need less protein or fat when they get older?
Although I’ve never discussed this with a veterinarian, common sense would dictate gerbils, like most animals, need less protein as they get older. This seems to be a common thing among most household pets; however, it probably affects breeding animals more strongly than others. Breeders, especially females, need a lot of fat and protein to nurture their litters. We do feed gerbils that are retired from breeding a diet that is lower in protein and fat.
