Morphology of erythrocyte and hematological parameters of red tilapia (Oreochromis sp.) after challenge with Streptococcus agalactiae

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Research Paper 01/01/2022
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Morphology of erythrocyte and hematological parameters of red tilapia (Oreochromis sp.) after challenge with Streptococcus agalactiae

Van-Thanh Vo, Thi-Hieu Tran, Thi-Tu-Quyen Huynh, Huyen Nguyen Thi Thuong
Int. J. Biosci.20( 1), 116-122, January 2022.
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The study focused on investigating the morphology of erythrocyte and some hematological parameters (including Hct index, Hb value, RBC count, WBC & thrombocyte count) on red tilapia (Oreochromis sp.) infected Streptococcus agalactiae before infection (control), five days post-infection and ten days post-infection. The experiment was arranged with two treatments containing control treatment and infection treatment. Each treatment has 3 replications with 3 tanks/treatment (n=10 fish). In this study, the hematological indexes both enhanced while the size of the erythrocyte reduced over five days and ten days of infection. Immature erythrocytes and abnormal erythrocytes are abundantly present in the peripheral blood of infected red tilapia, explaining the decrease in mean erythrocyte size and the RBC count increases.


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