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Rev Bras Parasitol Vet. 2007 Oct-Dec;16(4):215-9.

[Effect of the strategic control of Amblyomma cajennense (Fabricius, 1787) (Acari: Ixodidae) on the population of Anocentor nitens (Neumann, 1897) (Acari: Ixodidae) in equines].

[Article in Portuguese]

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Curso de Pós-Graduação em Ciências Animal, Escola de Veterinária, Universidade Federal Rural de Minais Gerais (UFMG), Sáo Francisco, Belo Horizonte, MG, Brasil.


The objective of this study was to evaluate the effect of the Amblyomma cajennense strategic control program on the Anocentor nitens population. The acaricide treatments were carried out every seven days and divided in two series, the first one beginning in April 2004 (eight treatments) and the second beginning in July of the same year (five treatments), using pyrethroid chemical base - cypermethrin in the concentration of 0,015%. Monthly it was evaluated the infestation of A. nitens in the ear and nasal diverticulum of the equines before (October 2003 to March 2004) and after (October of 2004 to March of 2005) the strategic program of acaricide treatments. It was used score of 0 to 3 to classify the infestation levels. It did not have any significant reduction of the parasitic load of A. nitens in the ear and nasal diverticulum of the equines. Possibly, due to absence of acaricide in the nasal diverticulum. Therefore, this anatomical structure it is an important place of infestation by A. nitens in equines.

[Indexed for MEDLINE]

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