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OJVRTM
Online
Journal of Veterinary Research ©
Volume 15 (4): 305-313, 2011. Extensively redacted
2017.
Hematology
and antioxidant enzymes in malignant ovine theileriosis
SM Razavi1,
S Nazifi2, E Rakhshandehroo1, M Ghane2
1Departments of Pathobiology and
2Clinical Studies, School of Veterinary Medicine, Shiraz University,
Shiraz, Iran
ABSTRACT
Razavi SM, Nazifi S, Rakhshandehroo
E, Ghane M., Hematology and antioxidant enzymes in
malignant ovine theileriosis, Online J Vet Res., 15 (4): 305-313, 2011. The effect of natural Theileria lestoquardi (hirci) infection on hematology and antioxidant enzymes
in Iranian fat-tailed sheep is described. One to 2 year old sheep infected by
<2%(n=14), 2-4%(n=25), and >4%(n=11) parasites,
were used. Controls consisted of 10 non-infected sheep. Results revealed
differences in red blood cell count (RBC), packed cell volume (PCV), mean corpuscular volume (MCV), concentration of hemoglobin and methemoglobin
and SOD and GPX activity between control and diseased sheep (P<0.01). Mean corpuscular
hemoglobin concentration (MCHC) showed no difference. Increase in parasites correlated with
decreased RBC (r = –0.36), PCV (r = – 0.78), hemoglobin (r = –0.77), SOD (r =
–0.53) and GPX (r = –0.53) and increased
methemoglobin (r = 0.37) except for sheep with <2% parasites. Parasitemia correlated with severity of anemia and
hemolysis.
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Keywords: Malignant theileriosis
, sheep , hematological parameters, antioxidant enzymes
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