DINAMIC OF NATURAL INFECTION IN NEWBORN CALVES EXPOSED TO BY Babesia bigemina AS DETECTED BY POLIMERASE REACTION CHAIN

Authors

  • Ângela Patrícia Santana Universidade de Brasília (UnB), Brasília, Distrito Federal, Brasil
  • Guido Fontgalland Coelho Linhares Universidade Federal de Goiás (UFG), Goiânia, Goiás, Brasil
  • Luci Sayori Murata Universidade de Brasília (UnB), Brasília, Distrito Federal, Brasil
  • Francisco Ernesto Bernal Universidade de Brasília (UnB), Brasília, Distrito Federal, Brasil
  • Fernando Araripe Torres Universidade de Brasília
  • Cláudio Roberto Madruga EMBRAPA - CNPGC

Abstract

With the objetive of using PCR to study the dynamic of natural infection caused by Babesia bigemina in calves livestock in extensive system, 266 samples of blood were collected from a group of 37 calves from birth to approximately 165 days old. The samples were collected with an average intervale of 19 days and distributed according to age 0 to 15 days old, 16 to 30 days and successively until 165 days. Out of the total of the 266 samples, 116 (43.60%) were PCR positive. The reaction detected the presence of the parasite in all the intervals of collection and most of the prime infection, 12 in 37 (32.43%) were detected in the period between 31 and 45 days. Out of the 37 calves analysed, only one presented a positive PCR result within the two groups aged under 31 days. This animal was two days old at the moment of the collection. This result suggest a case of transplacentary transmission of Babesia bigemina.

KEY WORD: Babesia bigemina, bovine, infection, PCR.

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Published

2008-10-15

How to Cite

SANTANA, Ângela Patrícia; LINHARES, Guido Fontgalland Coelho; MURATA, Luci Sayori; BERNAL, Francisco Ernesto; TORRES, Fernando Araripe; MADRUGA, Cláudio Roberto. DINAMIC OF NATURAL INFECTION IN NEWBORN CALVES EXPOSED TO BY Babesia bigemina AS DETECTED BY POLIMERASE REACTION CHAIN. Brazilian Animal Science/ Ciência Animal Brasileira, Goiânia, v. 9, n. 3, p. 721–730, 2008. Disponível em: https://revistas.ufg.br/vet/article/view/1486. Acesso em: 17 dec. 2025.

Issue

Vol. 9 No. 3 (2008)

Section

Veterinary Medicine

License

Copyright (c) 2008 Brazilian Animal Science/ Ciência Animal Brasileira

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