Graded purification earth pond for river crab culture tail water

The utility model relates to the field of river crab breeding, and discloses a river crab breeding tail water grading purification earth pond which comprises a shell, a water inlet hole is formed in the top of the shell, a sliding groove is formed in the inner side wall of the shell, a frame is mova...

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Bibliographische Detailangaben
Hauptverfasser:	LIU YANAN, DAI FEI, ZHUANG HONGGEN, YANG XIWEI, MAO HUI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	AGRICULTURE ANIMAL HUSBANDRY CARE OF BIRDS, FISHES, INSECTS FISHING FORESTRY HUMAN NECESSITIES HUNTING NEW BREEDS OF ANIMALS REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR TRAPPING
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