Current owners of chickens and roosters are exempted from § 76-114, but shall be limited to possessing on their property quantities of chickens and roosters that are no greater than the quantities presently possessed by these current owners, except that, if the quantities of chickens and roosters that these current owners would be permitted to keep under § 76-114 are greater than the quantities presently possessed by these current owners, then these current owners shall be permitted to keep quantities of chickens and roosters in accordance with § 76-114.