Produção Nacional
Revisado por pares
Changes in hematological and biochemical parameters of tambaqui (Colossoma macropomum ) parasitized by metazoan species
2018; Colégio Brasileiro de Parasitologia Veterinaria; Volume: 27; Issue: 4 Linguagem: Inglês
10.1590/s1984-296120180073
ISSN1984-2961
AutoresMaria Juliete Souza Rocha, Gabriela Tomas Jerônimo, Oscar Tadeu Ferreira da Costa, José Celso de Oliveira Malta, Maurício Laterça Martins, P. O. Maciel, Edsandra Campos Chagas,
Tópico(s)Fish Biology and Ecology Studies
ResumoAbstract The aim of this study was to evaluate the impacts of metazoan parasites on hematological and biochemical parameters and relative condition factor of tambaqui (Colossoma macropomum ) farmed in northern Brazil. A total of 32 juvenile fish were captured from a commercial fish farm located in the municipality of Rio Preto da Eva, Amazonas state, Brazil. Parasite prevalence was 100% for Anacanthorus spathulatus, Mymarothecium boegeri and Notozothecium janauachensis, 100% for Neoechinorhynchus buttnerae and 53.13% for Dolops geayi. The greatest mean parasite intensity was found in acantocephalans followed by monogeneans and branchiuran crustaceans. A negative correlation was observed between abundance of N. buttnerae and hematocrit percentage, hemoglobin concentration, total thrombocyte count and glucose and between abundance of the monogenean and glucose concentration. Parasitic infections caused damage in tambaqui in terms of the observed hematological parameters that were characterized by hypochromic anemia and thrombocytopenia, which are important parameters to be used in parasitic diagnosis. This study is the first record of the occurrence of Dolops geayi in farmed tambaqui in the Amazon.
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