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BIBTEX RIS

Características hematológicas de teleósteos brasileiros. I. Série vermelha e dosagens de cortisol e glicose do plasma sangüíneo de espécimes de Colossoma macropomum em condições de cultivo

1998; Editora da Universidade Estadual de Maringá (Eduem); Volume: 20; Linguagem: Inglês

10.4025/actascibiolsci.v20i0.4466

ISSN

1807-863X

Autores

Marcos Tavares‐Dias, Elziane F. Silva Sandrim,

Tópico(s)

Aquaculture disease management and microbiota

Resumo

Thirty approximately one-year-old sexually immature specimens of Colossoma macropomum Cuvier, 1818 (Osteichthyes: Characidae), total weight 500 to 700g, 25,0 to 30,2cm in standard length were used in this research work. Specimens were captured from tanks of Usina São Geraldo Fish Farm, Sertãozinho (São Paulo State, Brazil) and came from a single spawning. Average values for total count of erythrocytes, hemoglobin, hematocrit, mean corpuscular volume (MCV), mean corpuscular hemoglobin (MCH), mean corpuscular hemoglobin concentration (MCHC) were determined. Plasma glucose and cortisol were dosed. Results showed that the total count of erythrocytes in Colossoma macropomum was 2830.6 x 103/μl, hematocrit 41.6%, hemoglobin concentration 11.3g/100ml, MCV 150.0%, MCH 41.4pg, MCHC 27.7%, plasma glucose 116.7mg/dl and cortisol 182.1ng/ml. The number of erythrocytes presented positive correlation (α=0.05) with the hemoglobin rate and a highly positive correlation (α=0.01) with the hematocrit percentage while the hemoglobin rate showed a highly positive correlation (α=0.01) with hematocrit percentage.

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