Based of my experience of gerbils and hamsters, there doesn't seem to be a link between feeding and playing activity, but they were always well-fed so that prob

Based of my experience of gerbils and hamsters, there doesn't seem to be a link between feeding and playing activity, but they were always well-fed so that probably doesn't reflect anything like a state o nature. My two cats are definitely more active when they've not recently eaten. When their food bowls are empty, they run around and play much more --- `hunger' tends to stimulate activity in them. Once they're fed, especially with something they really like and will gorge on, they tend to lie around and sleep after eating.