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201. Performance of Alternative Diets Containing Solvent-Extracted Distillers Dried Grains with Solubles Compared to Traditional Diets for Pond-Raised Channel Catfish, Ictalurus punctatus , and Hybrid Catfish, Ictalurus punctatus × Ictalurus furcatus

Author

Renukdas, Nilima, primary, Engle, Carole, additional, Lochmann, Rebecca, additional, Li, Menghe H., additional, Avery, Jimmy, additional, Tucker, Craig S., additional, and Bosworth, Brian, additional

Published
2014
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210. Index.

Author

Engle, Carole R., Quagrainie, Kwamena K., and Dey, Madan M.

Published
2016
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232. Growth of Stocker Channel Catfish to Large Market Size in Single-Batch Culture

Author

Green, Bartholomew W., Engle, Carole R., Green, Bartholomew W., and Engle, Carole R.

Abstract

Catfish farmers increasingly are producing fish larger than the traditional size of 0.45-0.57 kg/fish in order to meet processing plant requirements for larger fish. Production of larger channel catfish (Ictalurus punctatus) in multiple-batch culture has been investigated in a few studies, but the impact of understocked fingerlings on growth of carry-over fish is unknown. The present study was conducted to quantify growth, feed conversion ratio, net daily yield, and net and total yield of stocker channel catfish grown in single-batch, one-season culture to mean individual weights of 0.60, 0.72, 0.91, or 1.17 kg/fish. Channel catfish (mean weight = 0.26 kg/fish) were stocked into 12 0.1-ha ponds at 11,115 fish/ha. Fish were fed a 32% crude protein floating extruded feed once daily to apparent satiation. When the average weight of the fish population reached the target weight, three randomly selected ponds were harvested. Fish growth was linear in all treatments. Growth rates were similar for fish grown to 0.60, 0.72, and 0.91 kg/fish, and significantly lower (P < 0.05) than for fish grown to 1.17 kg. Variation in individual fish weight increased linearly with increased duration of culture period. Feed conversion ratio averaged 1.9 and did not differ significantly among treatments. The percentage of the fish population at harvest that fell within the 0.57 to 2.04 kg-size range preferred by processing plants increased from 56.6 to 98.5% as the mean weight at harvest increased from 0.60 to 1.17 kg/fish.

Published
2004

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