General agricultural land uses, agricultural buildings and activities, such as the growing of field, truck and tree crops, dairying, livestock raising, poultry farming, fur farming and hog raising, subject to the following:
(a) Buildings or structures used for the stabling of livestock (including but not limited to horses, cows, sheep, fowl or other animals) shall be located at least 150 feet from any street line.
(b) Minimum land area for horses shall be 40,000 square feet per horse.