Feed 2oz rabbit pellets in the morning and 2oz of pellets again in the evening. Nowadays there are some very good alternative feeds for rabbits which can be used although I tend not to feed anything containing molasses to angoras.
Give hay at all times, shaking it well before giving it to the rabbit to remove any loose hayseeds which if caught in the coat could cause irritation or even worse, coat chewing by the rabbit. Plenty of fresh water should be given daily.
If desired and preferably chopped root vegetables, apples and small amounts of green food can be given as well as dry food, once a day. I tend to give a dry food feed in the morning and dry food plus vegetables in the evening as I have more time, but this can be done to suit your own timetable.
Picked grass from your own garden can be given but for show rabbits make sure it is chopped into inch lengths, so that they do not chew their face furnishings.
Bread baked in the oven can be a good tit bit or treat, as can digestive or rich tea biscuits. Do not pick green food from the roadsides which may have been sprayed or otherwise contaminated. or from areas overrun with wild rabbits or where dogs go regularly.
Regarding greens, never feed too much of any one thing, try to give a balanced salad of weeds and vegetables. Rabbits cannot live on cabbage and dandelion leaves alone, and in fact it is not good for rabbits to have a lot of either.
It is a good idea to give ½ a teaspoon of liquid paraffin or a blob of kitty moult if the rabbit stops eating during moult or immediately after clipping or kindling as this will prevent fur balls occurring.
These are balls of fur, which end up in the rabbits stomach and can lead to a lot of problems and a possible trip to the vet in extreme cases to have the fur ball removed surgically.
Watch the rabbits droppings and if they are getting strung together with fur, then liquid paraffin administered with a dropper or syringe down the side of the mouth when lying upside on your lap as for grooming.
If a rabbit scours (diahorrea) due to too much greenery then a teaspoon of diahorrea mixture for babies administered in the same way will clear it up but all green food must be removed for a few days and given carefully after that.
A probiotic powder can be purchased from a good stockist and can be put in the water to help the rabbit regain its health.