Evaluation of the Economics of Multi-Batch Channel Catfish Ictalurus punctatus Production Fed an Industry Standard and Three Alternative Diets |
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| Authors: | Charles C Mischke Menghe H Li Daniel F Oberle |
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| Institution: | 1. Mississippi State University, Thad Cochran National Warmwater Aquaculture Center , Stoneville, Mississippi, USA cmischke@drec.msstate.edu;3. Mississippi State University, Thad Cochran National Warmwater Aquaculture Center , Stoneville, Mississippi, USA |
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| Abstract: | The purpose of this study was to determine the feasibility of growing marketable channel catfish, Ictalurus punctatus, from pond-run fingerlings (15.9 g/fish) using low stocking densities (7,413 or 14,826 fish/ha) and electrified bug lights to enhance natural forage available to fish. Even at low stocking densities, fish only averaged 0.2 kg at the end of the growing season. Because marketable sizes of fish were not reached over the growing season, stocking small fingerlings at these rates would not be practical under most commercial production scenarios. Nutritionally, captured insects from electrified bug lights were near a complete diet for catfish, but bug lights did not capture sufficient quantities of insects to affect fish production in either stocking density. Stocking small fingerlings at low stocking rates does not produce market‐sized catfish during one growing season; commercially available bug lights did not provide adequate amounts of natural forage to affect production variables. |
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| Keywords: | Channel catfish natural forage fingerling stocking rates |
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