Approved agricultural activities are as follows: Raising grains, fruit, herbs, melons, mushrooms, nuts, seeds, tobacco, or vegetables; Raising poultry, for example, chicken, turkeys, or eggs; Dairy, for example, milking cows; Raising livestock, for example, cattle, sheep, lambs, hogs, or pigs; Horse boarding, breeding, or training; Turf farming; Ornamental horticulture with the raising and marketing of ornamental trees, shrubs, plants, and flowers, including aquatic plants; Aquaculture with the raising and marketing of aquatic organisms such as fish and shellfish; and Silviculture, as defined in Regulation .06 A(4) or (5) of this chapter. An activity not listed in §A of this regulation may be recognized as an approved agricultural activity at the discretion of the Department.