Each member of a board shall, in addition to necessary traveling and lodging expenses, receive a per diem for each day actually engaged in the discharge of his or her duties, including compensation for the time spent in traveling to and from the place of conducting business. Traveling and lodging expenses shall be on the same basis as provided in sections 81-1174 to 81-1177. The compensation per day shall not exceed fifty dollars and shall be determined by each board with the approval of the department. Persons serving on an advisory committee or body under section 38-161 shall receive remuneration of expenses as provided in sections 81-1174 to 81-1177, including compensation for time spent in traveling to and from the place of conducting business, and a per diem of fifty dollars.