The keeping/stabling of horses or ponies shall meet the following requirements and shall conform to the performance standards below:
1. At least three (3) but less than four (4) acres: maximum of two (2) horses or ponies.
2. At least four (4) but less than five (5) acres: maximum of three (3) horses or ponies.
3. At least five (5) acres: no limit on horses or ponies.
4. No manure storage shall be established any closer than one hundred (100) feet to any property line.
5. Horse barns, stables or structures for the storage of food and hay shall not be constructed closer than one hundred (100) feet to any property line.