General farming, including raising of crops and keeping of farm animals,
including but not limited to cattle, fowl, rabbits, sheep, goats,
and horses, except farms operated for the disposal of garbage, rubbish,
offal or sewage; feedlot limited to 150 livestock units or fewer;
poultry farm housing limited to 10,000 birds or fewer; and signs not
over eight square feet in area advertising the sale of farm products
produced on the premises.