PCR-based detection of Babesia bovis and Babesia bigemina in their natural host Boophilus microplus and cattle.

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Author(s): OLIVEIRA-SIQUEIRA, T. C. G.; OLIVEIRA, M. C. de S.; ARAÚJO JR., J. P.; AMARANTE, A. F. T.

Summary: PCR and nested-PCR methods were used to assess the frequency of Babesia bovis and Babesia bigemina infection in Boophilus microplus engorged females and eggs and in cattle reared in an area with endemic babesiosis. Blood and the engorged female ticks were from 27 naturally infested calves and 25 crossbred cows. The frequency of both Babesia species was similar in calves and cows (P>0.05). Babesia bovis was detected in 23 (85.2%) calves and in 25 (100%) cows and B. bigemina was detected in 25 (92.6%) calves and in 21 (84%) cows. Mixed infections with the both Babesia species were identified in 42 animals, 21 in each age category. Of female ticks engorged on calves, 34.9% were negative and single species infection with B. bigemina (56.2%) was significantly more frequent (P 0.05) to the frequency of single B. bigemina infection (15.9%). Mixed Babesia infection was lower (P

Publication year: 2005

Types of publication: Journal article

Unit: Embrapa Southeastern Livestock

Keywords: Babesia Bigemina, Babesia Bovis, Boophilus Microplus, Brazil, Chain reaction, Polymerase

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