Dr. Les Torrans - NC Aquaculture Development Conference

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AerationTractorsType(days/yr)NewSystem14.0OldSystem19.1Electric Aerators(Hp-hr·ac -1·yr -1 )8491109
Page 1 and 2:
Refinements in PondAquacultureLes T
Page 3 and 4:
6:208:2010:2012:2014:2016:2018:2020
Page 14 and 15: Aeration vs. Feed
Page 17: What D.O. concentrationdo catfish n
Page 23: ©2003 Les Torrans
Page 26 and 27: Minimum Daily D.O., 20021412Low Oxy
Page 28 and 29: Torrans - Catfish Oxygen Studies100
Page 32: Torrans - Catfish Oxygen Studies100
Page 37 and 38: Roland Schmidt, Aerway Mfg. Co.,“
Page 39 and 40: P.A.S. / Wilfley-WeberSubterranian
Page 43: 5-HP 3-phasemotorDiffuser in mouth
Page 48: Aerators placed in parallel on the
Page 51 and 52: “Standard” Paddlewheel Placemen
Page 53 and 54: Paul D. DeesDillard & Co, Inc.
Page 57 and 58: Water QualityParameterNewSystemOldS
Page 59: ProductionParameterNet Yield(lbs/ac
Page 64: PrecisionAeration:Apply OxygenDirec
Page 68: Photo courtesy ofSteven Asmus
Page 71 and 72: Sock-Saver II: the Redneck VersionC
Page 74 and 75: Oxygen Consumption of ChannelCatfis
Page 78 and 79: Eight tanks, O 2(232%)Supersaturate
Page 80 and 81: ProbePCV ProbeHolderEggPlatformSpin
Page 82 and 83: 1200“Standard”Metabolic Rate110
Page 84 and 85: 1200Horsepower1100RestrictorPlate S
Page 86 and 87: 1600Metabolic Rate14001200mg O2/kg-
Page 88 and 89: 1600Metabolic Rate14001200mg O2/kg-
Page 90 and 91: Incipient Limiting Oxygen LevelO2 S
Page 92 and 93: Incipient Limiting Oxygen LevelO2 S
Page 94: Incipient Limiting Oxygen LevelO2 S
Page 97: Commercial Implications• Of 26 co
Page 101 and 102: After 15 years of continuous use
Page 103 and 104: Environmental Management System•
Page 105 and 106: Results (after 3 years)• Average
Page 107 and 108: Results (after 3 years)ParameterTot
Page 109 and 110: Channel x Blue Catfish Hybrids• S
Page 111 and 112:
• Limited production• Advantage
Page 113 and 114:
Why Switch?• Economics of multipl
Page 115 and 116:
Using Aquaflor ®• For use in Cat
Page 117 and 118:
AQUAVAC-ESC®Vaccine
Page 119 and 120:
Intervet, Inc. Websitehttp://www. i
Page 121 and 122:
Impact on Production• Severe infe
Page 123 and 124:
Daniel Petre, Prairie Welding and S
Page 125:
“Zipper” SockOld SockZipper Soc
Page 132:
ltorrans@ars.usda.gov662-390-3882
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Dr. Les Torrans - NC Aquaculture Development Conference

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