Animal husbandry – Entomological culture device – Egg treatment – production – or storage
Patent
1988-11-22
1990-04-10
Tarcza, John E.
Animal husbandry
Entomological culture device
Egg treatment, production, or storage
426643, A23L 1325, A01K 6100
Patent
active
049150596
ABSTRACT:
Fish are cultured in one or more flumelike watercourses or "raceways" bounded by raceway-defining means. The water flow rate is such that the fish swim substantially continuously to maintain position. The fish are configured too closely to assert territorial rights, as they do when held at lower concentration. Water enters via a well enclosure at the upstream end, as by airlift upwelling; flows through the watercourse, sweeping waste materials along; and departs via a weir-like enclosure at the downstream end, where dissolved or undissolved waste is removed. Water is preferably supplied from and returned to a surrounding natural or man-made body of water, which also preferably floats the physical raceway means, facilitating water depth adjustment. Distribution of fish to adjacent raceways without any netting or handling conducive to injury is accomplished via airlift means. Fish so cultured remain healthy and grow rapidly and uniformly.
REFERENCES:
patent: 3452966 (1969-07-01), Smolski
patent: 3678898 (1972-07-01), Gross
patent: 3842804 (1974-10-01), Christensen et al.
patent: 4044720 (1977-08-01), Fast
patent: 4516528 (1985-05-01), Jones
patent: 4522727 (1985-06-01), Weber
Fisheries Engineering Research and Development Co., Inc.
McClure Charles A.
Tarcza John E.
LandOfFree
Raceway culturing of fish does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Raceway culturing of fish, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Raceway culturing of fish will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2292988