Isehunwa O Grace and Alada AR Akinola
Keywords: Bufo regularis, packed cell volume, red blood cell count, hemoglobin, concentration, seasons.
Abstract: The study investigated the effect of rainy and dry seasons on the Packed Cell Volume (PCV), Red Blood Cell count (RBC count), and Hemoglobin concentration (Hb conc.) of the Common African Toad (Bufo regularis). Adult toads of both sexes weighing between 70-100g were randomly selected and used in the study. Each toad was fasted for 24hr and anesthetized with sodium pentobarbitone (3mg/100g i.p). Blood sample was taken from truncus arteriosus to determine the PCV, RBC counts, and Hb conc. using standard laboratory techniques. The results showed the normal fasting PCV, RBC counts, and Hb conc. during rainy season was significantly higher (p<0.01) than the fasting PCV, RBC count, and Hb conc. during the dry season. Also, the PCV, RBC count, and Hb conc. of the female toad was significantly (p< 0.01) lower compared with the male toad during the rainy season while there was no significant difference in the PCV, RBC count, and Hb concentration of male and female toads during the dry season. Therefore, seasonal changes have significant effect on the PCV, RBC count, and Hb conc. of the Common African Toad (Bufo regularis).
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