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Micronucleus occurence in diploid and triploid rainbow trout (Oncorhynchus mykiss Walbaum)

Strunjak-Perović, Ivančica; Čož-Rakovac, Rozelindra; Topić Popović, Natalija (2003) Micronucleus occurence in diploid and triploid rainbow trout (Oncorhynchus mykiss Walbaum). Veterinarni Medicina, 48 (8). pp. 215-219. ISSN 0375-8427

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The aim of the study was to observe the influence of different ploidy levels in fish on micronucleus occurence. Twenty minutes after fertilization, one group of rainbow trout eggs was exposed to water temperatures of 26C in duration of 20 minutes to induce triploidy. Second group was kept in water temperature of 10C, which is optimal for development of rainbow trout. The frequency of micronucleated erythrocytes was determined in the peripheral circulation of rainbow trout 67 days (following absorption of the yolk - swim-up stage) and 128 days (fry stage) post fertilization. There was a significant difference (P<0.001) between frequency of micronucleated erythrocytes of diploid and triploid fish at swim-up stage. Increased mean values of micronucleus in diploid and triploid fry were also recorded.

Item Type: Article
Uncontrolled Keywords: micronucleus; rainbow trout; triploid; diploid
Subjects: NATURAL SCIENCES > Biology
Divisions: Division of Materials Chemistry
Depositing User: Natalija Topić Popović
Date Deposited: 08 Dec 2017 12:10

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