CHANNEL CATFISH CULTURE IN THE UNITED STATES. Leonard Lovshin Department of Fisheries and Allied Aquacultures Auburn University, AL 36849
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1 CHANNEL CATFISH CULTURE IN THE UNITED STATES BY Leonard Lovshin Department of Fisheries and Allied Aquacultures Auburn University, AL 36849
2 Channel Catfish ( Ictalurus punctatus )
3 Native Range Of Channel Catfish In The United States
4 Food Habits omnivorous
5 Preferred Habitat Rivers Reservoirs and lakes
6 Reproductive Life History 1. Sexual maturity is reached in 2 to 3 years in the southeastern U. S. 2. Spawning takes place in a cavity formed by rocks, logs or a hole in a lake or river bank. 3. Preferred spawning water temperatures: 70 to 84 F, with optimal temperature 75 to 79 F.
7 Sexual behavior 1. Males defend a territory/cavity. 2. Female enters the cavity and spawns. 3. Males incubate eggs and defend fry. 4. Males can spawn with more than one female a season. Spawning cavity
8 Hillside pond Levee ponds Flat pond bottom Catfish are grown in 5 to 25 acre earthen ponds with flat bottoms and drain pipes.
9 Catfish ponds are filled with either: Filtered surface water or rainfall Well water
10 Spawning in captivity: Stock adults 3 to 8 years old female male
11 Spawning Containers Ammo cans Milk cans Boxes in spawning pond float Wooden box
12 Spawning occurs during May and June in the Southeastern U. S. Spawning cans are checked every 2 to 3 days for spawns.
13 Eggs are placed in 5-mm square wire mesh baskets suspended in a paddlewheel incubator.
14 Eggs hatch in 5 to 6 days at water temperatures of 75 to 80 F.
15 Fry ( small catfish ) are stocked into ponds and cultured to fingerlings in 6 to 8 months. Fingerlings are stocked into fattening ponds during January to March for growth to market size
16 Floating pellets are distributed by a feed blower mounted on a truck. Floating pellets corn wheat soybean Trucked mounted fish feeder
17 Catfish are fed what they will eat Catfish feeding on surface Feeding catfish
18 Dissolved oxygen concentration is checked night and day to assure that levels remain above 2 ppm.
19 Electric ( fixed ) and tractor ( mobile ) powered paddlewheels are used to increase Dissolved oxygen levels. No water exchange is practiced because ponds are large and pumping water is costly.
20 Low Dissolved oxygen can kill catfish within 1 or 2 hours.
21 Many diseases cause fish mortality.
22 Birds consume many fish in some regions. Shoo! Gas cannon to scare the birds
23 Catfish are grown 12 to 18 months in fattening ponds before reaching a harvest size of 1.5 to 2.5 lbs. Catfish are removed from the pond with a seine stored on a hydraulic reel powered by a tractor.
24 Catfish are retained in a holding net overnight to eliminate small catfish. Fish are crowded for loading onto the transport truck.
25 Catfish are weighed onto trucks taking the fish to the processing factory. scale
26 Fish are checked for off-flavor 2 weeks, 1 day and upon arrival at the processor. Off-flavor fish are not harvested.
27 Catfish are weighed a second time upon arrival at the processor. Fish arrive alive. scale
28 Catfish are cleaned, filleted and frozen by the processor.
29 The catfish industry maintains a quality control program to insure the consumer a fresh and healthy product.
30 Principle farming states are located in the Southeastern U. S.. Mississippi ( MS ) Alabama ( AL ) and Arkansas ( AR ) produced 93 % of the farmed catfish in Mississippi accounts for 54% of farmed catfish
31 The channel catfish industry developed in the Southeast because: 1. Popular food fish - market 2. Warm climate 3. Abundant water and clay soils 4. Close to major grain farming regions - cheap fish feeds
32 Channel Catfish Live Weight Processed and Average Price per Pound, 2010 YEAR LIVE WEIGHT AVG. PRICE * PROCESSED, lb PER lb, $US ,000, cents * Price to farmer for fish delivered to the processing plant
33 U.S. Per-Capita Consumption in 2010 By Species in Pounds Species Lbs. 1 Shrimp Canned Tuna Salmon Tilapia Pollock Catfish Crab Cod Pangasius Clams Total All Species 15.8
34 EAT MORE CATFISH
35
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