| 摘要 |
<p>A plurality of rectangular, hexahedron concrete slabs (30) are employed and adjacently disposed to form a flooring (30) for a hog pen (21) having elevated sides (22, 23) or margins. Each slab or slat (30) has a plurality of apertures (40) so that the porosity of the slat (30), in closer proximity (W) to the walls of the pen (21), is greater than through the central region (C) of the pen (21). This provides, because of the observed behavior of the hog, a greater porous region (W) adjacent the walls (22, 23) of the pen (21) where the animal tends to defecate, the defecation running through the slots (40) into a collection region (26) below the elevation of the slats (30). The central region (C) which has a less porosity, is more suitable for the animal to walk or lay upon. When the animal walks near the sides (22, 23), (W) of the pen (21), the hoof action of the hog on the slat (30) tends to push any feces collected on the top of the slat through the apertures (40) into a collection region below (26) the elevation of the slats (30) and hence, the pen (21) is maintained clear of defecation by the actual movement of the hogs. Pen cleaning by the farmer is reduced or avoided.</p> |
