条件筛选
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What are the design methods for pig houses that do not require manure cleaning?
Abstract The upper floor can be designed as a pig-raising workshop, and the lower floor as an organic fertilizer processing workshop. That is, raise the height of the first floor where pig manure is stored, seal both floors completely, then install automatic exhaust fans, turn the original concrete slabs into slatted floors, and use steel bars to make a mesh bed.
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Simple chicken coop construction should focus on internal manure separation and rapid cleaning
Several issues to note in chicken coop construction