Original Research

In vivo comparison of susceptibility between Bos indicus and Bos taurus cattle types to Theileria parva infection

S.G. Ndungu, C.G.D. Brown, T.T. Dolan
Onderstepoort Journal of Veterinary Research | Vol 72, No 1 | a220 | DOI: https://doi.org/10.4102/ojvr.v72i1.220 | © 2005 S.G. Ndungu, C.G.D. Brown, T.T. Dolan | This work is licensed under CC Attribution-NoDerivatives 4.0
Submitted: 17 September 2005 | Published: 17 September 2005

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S.G. Ndungu,
C.G.D. Brown,
T.T. Dolan,

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Abstract

The objective of this study was to determine whether Bos taurus cattle differ form Bos indicus in their susceptibility to infection with the Muguga stabilate of Theileria parva and in their resistance to the resultant disease. Ten Friesians (B. taurus), ten improved Borans (B. indicus), ten unimproved Borans (B. indicus) and ten Zebus (B. indicus) born to dams from an East Coast fever (ECF) endemic area were inoculated with an infective dose50 dilution of T. parva Muguga stabilate 147. All the animals except one Friesian and one Zebu developed schizont parasitosis. All the improved Borans, nine of the Friesians, eight of the unimproved Borans and six of the Zebus developed a febrile response. Four of the improved Borans, four of the Friesians and three of the unimproved Borans died of theileriosis. No significant difference (P > 0.05) in the prepatent period occurred between the groups, but the Zebus had a significantly shorter duration of schizont parasitosis (P > 0.05) and took a significantly shorter time to recover (P > 0.05) than the other three groups. There was no significant difference in the two parameters between the other three groups. The study showed that three B. indicus breds and a B. taurus breed are equally susceptible to T. parva infection. However, Zebus born to dams from an ECF endemic area showed a better ability to control the course of disease than cattle from ECF free areas.

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