If you follow the feeding guidelines on our other pages you shouldnt have a lot of trouble mainting the rabbits weight, however sometimes you may come across a rabbit that is over weight / underweight (through incorrect feeding or illness) and you should know how to get these rabbits back to the correct weight.
UNDERWEIGHT rabbits need careful feeding to ensure they bulk up quicker, offer dry feed designed specifically for junior/breeding rabbits (as these bulk rabbits up quicker) on a morning (make sure to change feeds gradually) followed by ad lib hay, by offering the pellets first ensures that the rabbit will eat all its feed. Offer a double portion of pellets to help the rabbit put on weight. You can include a few 'barley' rings which are good for helping with weight gain, but be careful not to overdo them.
OVERWEIGHT rabbits will need to be kept on a strict diet to help them return to a safe weight, allow your bun to eat ad lib hay during the day then on an evening offer a half ration of pellets mixed with chopped hay and fresh greens. In a month or two your rabbit will have returned to a normal weight level.