Determination of Optimum Lipid Levels in Channel Catfish (Ictalurus punctatus) Diets
Abstract
Channel catfish (Ictalurus punctatus) fingerlings were reared in flow-through circular tanks on semipurified diets which consisted of 6, 8, 10, 12, and 14% lipid as beef tallow, unhydrogenated soybean oil, or fish oil. A commercially available catfish diet served as the control.
The most rapidly growing group of fish increased in body weight by 281% during the 20 week experimental period. There were no significant differences in growth between fish fed the 15 experimental diets, but the diets with 10% lipid were most consistent in producing high gains. The control diet was found to be deficient due to vitamin degredation. Fish in tanks receiving diets with the highest lipid level had the highest mortality rates, but the causes of death were not specifically determined.
Description
Program year: 1979-1980Digitized from print original stored in HDR
Subject
Channel catfishIctalurus punctatus
diet
nutrients
vitamin degradation
weight gain
mortality rates
Citation
Gatlin, Delbert M., III (1980). Determination of Optimum Lipid Levels in Channel Catfish (Ictalurus punctatus) Diets. University Undergraduate Fellows. Available electronically from https : / /hdl .handle .net /1969 .1 /CAPSTONE -GatlinD _1980.