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Evaluation of Endectocides and Conventional Acaricides in the Control of the <i>Boophilus microplus</i>on Field-Kept Dairy Cattle in the State of Pernambuco-Brazil

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Open Journal of Veterinary Medicine 2012年第3期2卷 124-128页

作者： Vania Lucia Assis Santana Maria Aparecida Da Gloria Faustino erika korinfsky vanderley Marilene Maria Lima Leucio Camara Alves Academic Unit of Serra Talhada Federal Rural University of Pernambuco Serra Talhada Brazil Department of Veterinary Medicine Federal Rural University of Pernambuco Recife Brazil Ministry of Agriculture Livestock and Food Supply National Laboratory of Animal and Plant Rua Dom Manoel de Medeiros Recife Brazil

The aim of the present study was to evaluate different acaricide treatments for the control of Boophilus microplus on field-kept dairy cattle in the state of Pernambuco, Brazil. The first phase of the experiment consisted of collecting the ingurgitated female Boophilus microplus directly from the hosts for attainment of larvae. After the attainment of larvae, the artificial infestation procedure began on the cattle, with larvae ages ranging from 7 to 14 days. On Day 0, animals were separated into 12 groups to receive the corresponding treatment: Abamectin;Ivermectin;Ivermectin LA;Amitraz;Amitraz + Ivermectin;Amitraz + Ivermectin LA;Amitraz + Abamectin;Association (Cypermethrin + Chlorpyrifos + Citronella);Association + Ivermectin;Association + Ivermectin LA;Association + Abamectin;and Control. Subsequent evaluations were made on post-treatment days +7, +14, +21, +28, +35, +42, +49, +56 and +63. Analyzing the post-treatment effectiveness per day, indices revealed considerable variation ranging from 0% to 96.63%. Such indices demonstrate the significant reduction in the number of ticks on the animals in some groups, especially in the Abamectin group. The analysis of the results demonstrates that the use of different avermectines can assist in the development of Boophilus microplus control programs, thereby reducing the number of acaricide applications and production costs related to ticks.

关键词： Boophilus microplus Tick Carrapaticide Efficiency Resistance

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