Except as hereinafter specified, farm animals, with the exception of chicken hens, maintained on any residential zoned property at the time of the effective date of the City of Fair Grove Zoning Regulations adopted on May 21, 1996, may continue as a legal, non-conforming use, subject to the following provisions:
1. The number of farm animals shall not be increased, nor shall any existing farm animal be replaced by a different species of farm animal.
2. When the resident at the time of the effective date of the Zoning Regulations adopted on May 21, 1996, no longer occupies the property, the maintenance of farm animals on the property shall cease, and the property shall not be used except in conformity with the provisions of the residential zoning district in which it is located.