Observation of red blood cell alterations in triploid rainbow trout (Oncorhynchus mykiss)

The subject of this study was investigation of red blood cell alterations in diploid and triploid rainbow trout (Oncorhynchus mykiss). The triploid rainbow trout were obtained through the application of heat shock of 26.5 deg C for 20 min to eggs 20 min following fertilization. The diploids were not...

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Published inActa Scientiarum Polonorum. Piscaria (Poland) Vol. 7; no. 1-4
Main Authors Johari, S.A, Kalbassi, M.R, Sourinezhad, I.,International Campus of Tarbiat Modarres University, Noor (Iran). Dept. of Fisheries, Wlasow, T.,University of Warmia and Mazury, Olsztyn (Poland). Faculty of Environmental Protection and Fisheries
Format Journal Article
LanguageEnglish
Published 2008
Subjects
BLOOD CELLS
CELL STRUCTURE
CELLULE SANGUINE
CELULAS SANGUINEAS
CHROMOSOME NUMBER
COMPOSE NUCLEIQUE
COMPUESTOS NUCLEICOS
DIPLOIDIA
DIPLOIDIE
DIPLOIDY
ERITROCITOS
ERYTHROCYTE
ERYTHROCYTES
ESTRUCTURA CELULAR
FISH CULTURE
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http://www.fao.org/aos/agrovoc#c_5254
http://www.fao.org/aos/agrovoc#c_6094
http://www.fao.org/aos/agrovoc#c_7939
http://www.fao.org/aos/agrovoc#c_960
METHODE
METHODS
METODOS
NOMBRE CHROMOSOMIQUE
NUCLEIC COMPOUNDS
NUMERO DE CROMOSOMAS
ONCORHYNCHUS MYKISS
PISCICULTURA
PISCICULTURE
POLIPLOIDIA
POLYPLOIDIE
POLYPLOIDY
STRUCTURE CELLULAIRE
TRIPLOIDIA
TRIPLOIDIE
TRIPLOIDY
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ISSN1644-0706

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Summary:The subject of this study was investigation of red blood cell alterations in diploid and triploid rainbow trout (Oncorhynchus mykiss). The triploid rainbow trout were obtained through the application of heat shock of 26.5 deg C for 20 min to eggs 20 min following fertilization. The diploids were not subjected to shock. The 3N and 2N fingerlings of rainbow trout were reared under the same condition (environment, feeding). Fish ploidal level was determined by erythrocyte size measurement and the number of active nucleoli in epithelial gill cells (NORs). Triploidy was induced in 80.86 percent in heat shocked treatment. It was found that the percentage of erythrocytes with segmented nuclei in triploid fish was 13.52 percent and was significantly higher than that in diploid fish (1.06 percent). In addition amitosis of red blood cells only seen in triploids (0.57 percent). It seems that increase of nuclear segmentation is one of the important characteristics for triploid rainbow trout
Bibliography:2010000368
M12
ISSN:1644-0706