All breeding and feeding sheep offered for sale or exchange or otherwise moved or released from any premises, vehicle, or conveyance, shall, within ten days prior to exchange, release, or movement, be treated in an approved manner under the supervision of the department or the animal and plant health inspection service of the United States department of agriculture. When sheep are moved within or from a certified scabies-free area in this state, the sheep must be accompanied by a certificate of veterinary inspection as provided in chapter 163. The treatment shall not be required prior to such movement. Sheep may be moved from a premises to an approved facility for the purpose of treatment under such conditions as may be required by the rules of the department or the regulations of the animal and plant health inspection service of the United States department of agriculture. In addition, sheep are not required to be treated if moved to a livestock auction market until after sale. Sheep are not required to be treated if consigned directly for slaughter.