PURPOSE: To obtain the title readily movable floor member capable of separating livestock excreta in its excretion by fitting the lower part of a drainboard-like floor with a tilt plate to effect integral constitution.

CONSTITUTION: The upper surface of a movable frame 1 is horizontally fitted with a conventional drainboard-like floor. The interior of the frame 1 is equipped with a tilt plate 3 as shown in the figure, and the lower part of said plate is rectangularly recessed downward to provide a slot 5. Furthermore, a protective plate 4 is fitted in a tilted manner as shown in the figure above the slot 5 within the frame 1.