| 摘要 |
PCT No. PCT/AU83/00174 Sec. 371 Date Aug. 1, 1984 Sec. 102(e) Date Aug. 1, 1984 PCT Filed Nov. 30, 1983 PCT Pub. No. WO84/02254 PCT Pub. Date Jun. 21, 1984.A structure for housing plants and animals, particularly poultry, in a controlled environment, comprises a base and opposite sides inclined towards an apex at which there is provided an opening. A ceiling is provided inside the structure over the plants or animals. The ceiling is opened to allow hot air trapped below it to pass out through the opening in the apex, thereby cooling the interior. To heat the interior, the ceiling is closed to retain the heat generated by the plants or animals as well as solar generated heat. Vents are preferably provided in the sides of the structure to allow cooling air to be drawn in when the ceiling is opened.
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