Evaluation of the haematological parameters in Piaractus mesopotamicus Holmberg (Osteichthyes, Characidae) with Argulus sp. (Crustacea, Branchiura) infestation and treatment with organophosphate
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Data
1999-06-01
Autores
Tavares-Dias, Marcos [UNESP]
Martins, Maurício Laterça [UNESP]
Kronka, Sérgio do Nascimento [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Editor
Sociedade Brasileira de Zoologia
Resumo
Haematological parameters as erythrocytes, leukocytes and plasma glucose in Piaractus mesopotamicus Holmberg, 1887 were analyzed. Fish were parasitized with Argulus sp. (Crustacea, Branchiura) and treated with 0.4 mg of thriclorphon 500/L water. The effects of parasitism and the action of the treatment were evaluated. Parasitized fish showed greater number of monocytes (P>0.05) and special granulocitic cells (P<0.01) in the peripheric blood than the unparasitized (control) fish. Parasitized fish showed lower number of thrombocytes (P>0.05). Organophosphate treatment presented significantly reduction (P>0.05) in red blood cells (RBC) and hemoglobin.
Descrição
Palavras-chave
Piaractus mesopotamicus, Argulus, parasitism, haemathology
Como citar
Revista Brasileira de Zoologia. Sociedade Brasileira de Zoologia, v. 16, n. 2, p. 553-555, 1999.