Title:
FISH FARMING SYSTEM FOR FISH AND SHELLFISH
Document Type and Number:
Japanese Patent JP3887320
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a fish farming system for fish and shellfish, which efficiently removes large foreign matters on a sand bed in a rearing tank and is cleaned.
SOLUTION: The fish farming system for fish and shellfish is equipped with the rearing tank 1 for rearing fish and shellfish having the sand bed 8 on the bottom, a rearing water cleaning means 3 for cleaning rearing water 2 in the rearing tank 1 and a circulation means 4 for circulating the rearing water 2 between the rearing tank 1 and the rearing water cleaning means 3. A foreign matter discharge port 30 is arranged at one end part of the rearing tank 1 and a water flow generation means 13 for generating a water flow to the foreign matter discharge port 30 is installed at the other end part opposed to the foreign matter discharge port 30. After a water level above the sand bed 8 is lowered, a water-flow is generated by the water flow generation means 13 and foreign matters on the sand bed 8 are discharged from the foreign matter discharge port 30 by the water flow.
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Inventors:
Hitoshi Kitamura
Hideo Koizumi
Atsushi Tsuji
Hideo Koizumi
Atsushi Tsuji
Application Number:
JP2003011679A
Publication Date:
February 28, 2007
Filing Date:
January 20, 2003
Export Citation:
Assignee:
Land Aquaculture Engineering Co., Ltd.
International Classes:
A01K63/00; A01K63/04; (IPC1-7): A01K63/00
Domestic Patent References:
| JP2002159241A | ||||
| JP49041195A | ||||
| JP3006737U | ||||
| JP2004524467A |
Attorney, Agent or Firm:
Keisei Nishikawa
Atsuo Mori
Atsuo Mori