HEMATOLOGIA DE JUNDIÁS EM RESPOSTA AO NÍVEL DE PROTEÍNA NA DIETA

In this study, hematology was evaluated in jundiá fish males and females fed with three protein levels: 24, 27 and 30% CP. A total of 270 fishes (135 males and 135 females – initial weight of 216.38 ± 26.73 g) were fed during 100 days, in a water re-use system containing 18 tanks (six treatments and three replicates). After this period, six fishes by treatment were captured for blood collection, by which the following values were obtained: hematocrit, hemoglobin, red blood cells, mean corpuscular volume, mean corpuscular hemoglobin, mean corpuscular hemoglobin concentration and platelets. The males showed higher values (P<0.01) of red blood cells, hematocit and hemoglobin comparing to the females. The females showed higher platelet values. Platelets and mean corpuscular hemoglobin concentration were affected by dietetic protein level. Corpuscular volume and mean corpuscular hemoglobin were not affected by the diet protein level nor the fish sex (P>0.05). It can be concluded that jundiá fish males showed higher hematological parameters compared to females. The dietary protein influences in platelets and mean corpuscular hemoglobin concentration of jundiá fish.