Hematological parameters in two neotropical freshwater teleost, Leporinus macrocephalus (Anostomidae) and Prochilodus lineatus (Prochilodontidae)

  • Marcos Tavares-Dias UFAM
  • Flávio Ruas Moraes, Mizue Egami Imoto

Abstract

ABSTRACT: Leporinus macrocephalus is a non-migratory omnivore fish which occurs in waters with a relatively high oxygen rate. Prochilodus lineatus is a migratory fish that inhabits deoxygenated hypolimnion and feeds on detritus material. Red blood cell, thrombocytes and white blood cell counts, hematocrit and hemoglobin, electrolytes (sodium, potassium, calcium, magnesium and chloride), metabolic products (total serum protein and plasma glucose) and blood cells major axis length for L. macrocephalus and P. lineatus were compared. White blood cell counts for both species indicated a similar activity of the immune functions. The concentration of total protein, sodium, calcium, magnesium and chloride, MCV, as well as red blood cells, monocytes, and thrombocytes size in L. macrocephalus were higher than in P. lineatus. However, P. lineatus had higher red blood cell counts, hematocrit and hemoglobin, which reflects a considerable adaptation to survive in an environment with low levels of oxygen.

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Author Biographies

Marcos Tavares-Dias, UFAM
Biólogo, Mestre e Doutor pelo Centro de Aquicutura da UNESP(CAUNESP), Campus Jaboticabal, SP. Professor Adjunto I da Universidade Federal do Amazonas.
Flávio Ruas Moraes, Mizue Egami Imoto
Médico Veterinário, Mestre em Patologia, Doutor em Farmacologia pela USP de Ribeirão Preto, SP. Professor Titular do Departamento de Patologia da UNESP, Jaboticabal, SP.
Published
2008-09-17
How to Cite
Tavares-Dias, M., & Moraes, Mizue Egami Imoto, F. R. (2008). Hematological parameters in two neotropical freshwater teleost, Leporinus macrocephalus (Anostomidae) and Prochilodus lineatus (Prochilodontidae). Bioscience Journal, 24(3). Retrieved from http://www.seer.ufu.br/index.php/biosciencejournal/article/view/6751
Section
Artigos