HEMATOLOGICAL ASSESSMENT IN FOUR BRAZILIAN TELEOST FISH WITH PARASITIC INFECTIONS, COLLECTED IN FEEFISHING FROM FRANCA, São Paulo, BRAZIL
2008; INSTITUTO DE PESCA - APTA - SEC. DE AGR. E ABAST. - SP; Linguagem: Inglês
ISSN
1678-2305
AutoresMarcos Tavares‐Dias, Flávio Ruas de Moraes, Maurício Laterça Martins,
Tópico(s)Aquaculture Nutrition and Growth
ResumoThe effects of parasitic infections in condition factor, hematocrit, hemoglobin, mean corpuscular hemoglobin concentration (MCHC), and leucocytes and thrombocytes distribution in Piaractus mesopotamicus, Leporinus macrocephalus, hybrid tambacu (P. mesopotamicus x Colossoma macropomum and Brycon amazonicus collected in feefishing from Franca, Sao Paulo, Brazil were evaluated. Parasitized tambacu and L. macrocephalus had higher (p 0.05) of tambacu. In P. mesopotamicus parasitized by Monogenea Anacanthorus penilabiatus and dinoflagellate Piscinoodinium pillulare, increase in monocytes and decrease in thrombocytes percentage (p<0.05) were found. However, the same parasitic association in L. macrocephalus caused a decrease in lymphocytes percentage accompanied by increase in neutrophils percentage (p<0.05). In B. amazonicus, infection by Ichthyophthirius multifiliis , P. pillulare and monogeneans caused increase in neutrophils percentage.
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