Hematological parameters of three species of the peacock bass (Cichla spp.) from Balbina lake, Presidente Figueiredo, Amazonas, Brazil

The objective of this study was to characterize and compare the hematological variables (erythrogram, thrombogram, leukogram and plasma metabolites) of three cichlid species: Cichla monoculus, Cichla temensis and Cichla vazzoleri. A total of 45 specimens were captured in Balbina lake, Presidente Fig...

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Bibliographic Details
Published in:Brazilian journal of biology 2021-02, Vol.81 (1), p.62-68
Main Authors: Castro, P D S, Ladislau, D S, Ribeiro, M W S, Lopes, A C C, Lavander, H D, Bassul, L A, Mattos, D C, Liebl, A R S, Aride, P H R, Oliveira, A T
Format: Article
Language:English
Subjects:
Amazon region
Animals
Aorta
Baits
BIOLOGY
Blood
Brazil
Cell differentiation
Cholesterol
Cichla
Cichla monoculus
Cichla temensis
cichlid fish
Cichlids
comparison
Coronary vessels
Enzymes
Hematology
Hemoglobin
Immune response
Immune response (cell-mediated)
Lakes
Leukocytes
Lymphocytes
Metabolites
Monocytes
Plasma
Potassium
Species
Urea
welfare
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Summary:The objective of this study was to characterize and compare the hematological variables (erythrogram, thrombogram, leukogram and plasma metabolites) of three cichlid species: Cichla monoculus, Cichla temensis and Cichla vazzoleri. A total of 45 specimens were captured in Balbina lake, Presidente Figueiredo, Amazonas, Brazil, with the aid of a rod and reel or hand line, with natural or artificial bait: 15 C. monoculus, 15 C. temensis and 15 C. vazzoleri. Their blood was removed by means of caudal puncture of the dorsal aorta, and hematological data were determined in accordance with methodology previously described in the literature. The erythrogram showed similarities between the species, while the thrombogram showed differences between C. vazzoleri and the other species studied (C. monoculus and C. temensis). The total leukocyte counts for C. temensis and C. vazzoleri were higher than those of C. monoculus. The predominant leukocyte in C. temensis and C. vazzoleri was lymphocytes, whereas it was monocytes in C. monoculus. The plasma metabolites showed differences between the three cichlid species, regarding their glucose, cholesterol, urea and potassium levels. It is concluded that these three species present hematological differentiation, thus indicating that they have differentiated blood-cell immune responses and plasma metabolite physiology.
ISSN:1519-6984
1678-4375
1678-4375
DOI:10.1590/1519-6984.219409