Acta Vet. Brno 2006, 75: 203-207

Erythrocyte Profile of Diploid and Triploid Silver Crucian Carp (Carassius auratus)

L. Vetešník, K. Halačka, V. Lusková, S. Lusk

Institute of Vertebrate Biology AS CR, Brno, Czech Republic

Received August 16, 2005
Accepted March 16, 2006

Haematological analysis was performed on 27 adult specimens of Carassius auratus irrespective of sex in 2003 and on 32 juveniles of distinguished sex in 2004. In this study we found that the ploidy level affected significantly (p < 0.01) the values of the erythrocyte count, mean corpuscular volume and mean corpuscular haemoglobin. Although we did not prove any significant effect of sex in juvenile diploids of C. auratus on the values of erythrocyte profile, the erythrocyte count, haematocrit value and haemoglobin content value were higher for males than for females. The erythrocyte count decreased significantly (p < 0.01) with increasing ploidy level. The index of haemoglobin content followed the same trend of a decreasing mean value with increasing ploidy level. Mean corpuscular volume and mean corpuscular haemoglobin increased with the increasing ploidy level (p < 0.01). Haematocrit value and mean corpuscular haemoglobin concentration did not significantly differ from the point of view of the ploidy level.