02052naa a2200289 a 450000100080000000500110000800800410001910000180006024501410007826000090021952011960022865000210142465000110144565000110145665000280146765000100149565000240150565000210152965000110155065000140156170000180157570000220159370000180161570000220163370000190165577300880167421709222024-12-27       2024    bl uuuu     u00u1 u    #d1 aANDREOTTI, R.  aControl of Rhipicephalus microplus tick larvae in the field based on distancing from the host - Lone tick system.h[electronic resource]  c2024  aABSTRACT - The aim of this study was to evaluate a host–tick distancing control system using Rhipicephalus microplus in cattle. Its impact on the profiles of the pathogens Anaplasma marginale and Babesia bigemina was also assessed using enzyme-linked immunosorbent and real-time polymerase chain reaction. Experiments were conducted in Mato Grosso do Sul, Brazil. A total of 37 Senepol animals with natural tick infestation were used in this study. The ticks on the animals were counted, and pasture rotation was performed at 28-day intervals. This approach was repeated until the end of the experiment to maintain a low number of ticks, resulting in a final average of 6.3 ticks/host. Cattle maintained an immune response to the cattle tick fever (CTF) agents. DNA copies of A. marginale (X‾ 1.1) and B. bigemina (X‾ 0.05) did not vary significantly with the decrease in tick count throughout the study period. Based on these results, we conclude that a distancing period of 84 days between ticks and cattle in conditions of the Cerrado biome can control ticks in animals and maintain enzootic stability. Thus, it is possible to create productive breeds with lower tick control costs.  aAnimal pathogens  aCattle  aLarvae  aRhipicephalus microplus  aTicks  aAnaplasma Marginale  aBabesia Bigemina  aBovino  aCarrapato1 aBARROS, J. C.1 aZIMMERMANN, N. P.1 aGARCIA, M. V.1 aHIGA, L. de O. S.1 aMARTINS, K. R.  tVeterinary Parasitology: Regional Studies and Reportsgv. 47, article 100950, 2024.