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Hydrobiological Journal
SJR: 0.227 SNIP: 0.575 CiteScore™: 0.24

ISSN Print: 0018-8166
ISSN Online: 1943-5991

Hydrobiological Journal

DOI: 10.1615/HydrobJ.v35.i5.90
pages 76-85

Adaptation Changes in Channel Catfish Yearlings at Infection by the Parasitic Infusoria Ichthyophthirius multiflliis Fouquet

L. Ya. Kurovskaya
Institute of Zoology National Academy of Sciences of Ukraine Kyiv, Ukraine

ABSTRACT

Influence of different levels of invasion by the parasitic infusoria Ichthyophthirius multifiliis Fouquet on some morphometric and biochemical indices of channel catfish yearlings at their infestation has been studied under experimental conditions. Adaptation changes in the protein content and activity of hydrolases were determined in internal organs and muscles of fishes at intensity of invasions by Ichthyophthirius ca. 1−50 individuals per one fish. Besides biochemical changes, for channel catfishes at intensity of invasions by Ichthyophthirius ca. 51−550 individuals, changes in mass, length, and the fatness index were revealed.


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