The Uniform Rules of Practice for the Department of Agriculture promulgated in Subpart H of Part 1, Subtitle A, Title 7, Code of Federal Regulations, are the Rules of Practice applicable to adjudicatory, administrative proceedings under the Packers and Stockyards Act, as amended (7 U.S.C. 181 et seq.). In addition, the Supplemental Rules of Practice set forth in this part shall be applicable to such proceedings.