The other is an insoluble grit, usually small stones, for improved feed grinding in the gizzard. Shellgrit should be available at all times. Household Scraps Waste products from the kitchen and garden can be fed - but with care. They must never be substituted for the birds normal diet because scraps will not give a regular, balanced food intake. As a guide - feed daily amounts that the flock will clean up in 5 to 10 minutes.
Care is necessary in the choice of house scraps.
Do not feed tea leaves, tomato skins, orange and banana peels, raw potato peelings or coffee grounds. They are fibrous or high in tannin, not well digested and of little value. Scraps high in salt content should be avoided. Rotting meat or vegetable matter can result in botulism outbreaks and heavy stock losses. Uneaten scraps in poultry runs will attract flies and rats or dogs.