Effect of Short-term Heat-induced Stress on Complete Blood Counts (CBCs) in the Swiss Albino Mice (Mus musculus)
Sixty sexually mature, 15- to 22-week-old, male and female laboratory-bred Swiss albinos weighing 21 to 43g each were used in the present study to find out the effect of exposing mice to 35 to 40C0 for 4 hours on their blood parameters using Complete Blood Counts (CBC) as indicators. The experimental design was 4 groups of 2 X 2 factorial arrangements for genders and heat treatments. The genders were: 30 male mice and 30 female mice per treatment. The heat treatments were: Control: 30 mice (15 males and 15 females) kept for four hours at room temperature (25 ± 2 C0), and the heat stress: 30 mice (15 males and 15 females) kept at 35 to 40 0C ambient temperature for four hours. The variables measured were: white blood corpuscles (WBC), red blood corpuscles (RBC), hemoglobin (HGB), hematocrit (HCT), mean corpuscular volume (MCV), mean corpuscular hemoglobin (MCH), mean corpuscular hemoglobin concentration (MCHC) and platelets count (PLT). Exposure to the heat produced a profound effect on the blood. Differences in levels of WBC, MCHC, and PLT in males and females heat exposed groups were not significant, but those of the rest (RBC, HGB, HCT, MCV, and MCH) were significant. Keywords: Albino mice, Mus musculus, heat stress, Complete Blood Count