Agricultural, floricultural and horticultural pursuits, including but not limited to general farms, greenhouses, plant nurseries, truck gardens, dairy husbandry, animal husbandry and the raising of bees, poultry and livestock, together with all customary buildings and other structures necessary for the production, processing and storage of the products of such pursuits. No manure or other odor- or dust-producing substances shall be stored within 100 feet of any lot line.