Abstract: An elevation mechanism for elevating a support member (7) of a picker (6) is suspended at its both ends by strings (17, 18). The strings (17, 18) are stretched to a pull-driving portion disposed at the back of aligned positions of information-storage regular articles (2) and in an upper portion of an information reader (5) through guide rollers (21, 22, 23, 24) located in an upper part of a housing (1).

Abstract: An apparatus having a plurality of rack members provided within a plurality of longitudinally spaced frames, a plurality of cages suspended from the rack members, and a plurality of dung and food conveyor belts. The frame comprise stands spaced along the longitudinal direction of the apparatus, a post mounted on each of the stands at a central portion with respect to the lateral direction of the apparatus, and cantilevered brackets secured to each post so as to project in laterally opposite directions. The rack members are secured to the cantilevered brackets so as to form a plurality of racks.