Cal. Food & Agric. Code § 10402

The value of an animal which is slaughtered shall be determined by appraisement by a representative of the department or a representative of the Agricultural Research Service of the United States Department of Agriculture, and by the owner or his agent. If such persons do not agree on the valuation of the animal, the animal shall be appraised by the chief appraiser of the department or his representative. In either event, the value which is determined is final.