Ticks on domestic animals in Pernambuco, Northeastern Brazil.

The objective of this article was to discuss some aspects of ticks associated with domestic animals in the State of Pernambuco, northeastern Brazil, based on a literature review and present new data obtained from recent tick collections carried out in this northeastern Brazilian state. From August 2007 to June 2008, 1,405 ticks were collected and five species were identified: Amblyomma cajennense (Fabricius, 1787), Amblyomma ovale Koch, 1844, Dermacentor nitens Neumann, 1897, Rhipicephalus (Boophilus) microplus (Canestrini, 1887), and Rhipicephalus sanguineus (Latreille, 1806). Dogs from urban areas were found exclusively infested by R. sanguineus, whereas dogs from rural areas were found infested by A. cajennense, A. ovale, R. (B.) microplus, and R. sanguineus. The only tick species found on cattle and goats was R. (B.) microplus. Horses were found infested by D. nitens and at a lesser extent by A. cajennense and R. (B.) microplus. The only tick species found on donkeys was D. nitens. Tis study confirms the presence of A. cajennense in Pernambuco and describes for the first time the presence of A. ovale in this state. The medical and veterinary relevance and control of ticks associated with domestic animals in Pernambuco are also briefly discussed.