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Effects of Starvation on Growth and Physiological Response in Cultured Catfish, Silurus asotus  

Lee, Jeong Yeol (School of Marine Life Science, Kunsan National University)
Hur, Jun Wook (School of Marine Life Science, Kunsan National University)
Kim, Sun Gyu (School of Marine Life Science, Kunsan National University)
Publication Information
Korean Journal of Ichthyology / v.20, no.2, 2008 , pp. 81-89 More about this Journal
Abstract
An experiment was conducted for 80 days to determine the effect of feeding and starvation on the survival, growth, gonad-somatic index (GSI), hepato-somatic index (HSI), viscera index (LSI), the morphometric changes and hematological parameter in a cultured catfish, Silurus asotus. The survival and growth of the starved group was lower than those of the fed group during the experiment. Starvation resulted in retardation of growth, which provides examples of the reduction of final body weight, growth rate of body weight, specific growth rate and condition factor, whereas the fed group continued to grow and remained in good condition. Blood analysis (cortisol, glucose, aspartate aminotransferase, alanine aminotransferase, red blood cell and hemoglobin) showed significant differences between the fed and starved groups at the end of the experiment. These results suggest that all nutritional parameters used for starvation and feeding in this study appear to be a useful index of nutritional status in the cultured catfish.
Keywords
Catfish; Silurus asotus; starvation and feeding; growth;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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