Efficiency of Moxidectin in Boophilus microplus tick control in cattle artificially infested

Authors

  • João Batista Pereira de Carvalho Secretaria de Agricultura e Abastecimento do Estado de São Paulo, Agência Paulista de Tecnologia dos Agronegócios, Pólo Regional de Desenvolvimento Tecnológico dos Agronegócios do Vale do Paraíba, Pindamonhangaba, SP
  • Guilherme Paes Guaragna Secretaria de Agricultura e Abastecimento do Estado de São Paulo, Agência Paulista de Tecnologia dos Agronegócios, Pólo Regional de Desenvolvimento Tecnológico dos Agronegócios do Vale do Paraíba, Pindamonhangaba, SP
  • Pedro Biondi Secretaria de Agricultura e Abastecimento do Estado de São Paulo, Agência Paulista de Tecnologia dos Agronegócios, Pólo Regional de Desenvolvimento Tecnológico dos Agronegócios do Vale do Paraíba, Pindamonhangaba, SP
  • Maria Inês de Aquino Barbosa de Carvalho Secretaria de Agricultura e Abastecimento do Estado de São Paulo, Agência Paulista de Tecnologia dos Agronegócios, Pólo Regional de Desenvolvimento Tecnológico dos Agronegócios do Vale do Paraíba, Pindamonhangaba, SP

Keywords:

Boophilus microplus, moxidectin, ivermectin, tick, control

Abstract

The efficacy of a Moxidectin subcutaneously injectable formulation in 0.1; 0.2, and 0.4mg Kg-1 body weight was evaluated compared with Ivermectin at 0.2 mg kg-1 and control group. Forty female Holstein yearling, randomly allocated in eight blocks, were artificially infested with 4,000 B. microplus larvae per day from 200mg of eggs in the –20; -17; -14; -7; -1; +5; +9 and +14 days (day 0= treatment day). The counts of semi-ingurged female ticks (4.5 to 8.0mm long) were carried out 21 days after each infestation. The average and the efficacy between the 4 to 20 count days were 982.8 for the control group, 160.3 (85.7%) for the Ivermectin treatment; 205.3 (81.8%), 94.1 (92.2%), and 58.7 (94.55%) for the Moxidectin treatment at 0.1; 0.2 and 0.4mg kg-1, respectively. Significant differences were found (P< 0.05) between the control group and all treatments. No significant differences (P> 0.05) were found between Moxidectin 0.4mg kg-1 and Moxidectin and Ivermectin 0.2mg kg-1, respectively. The best treatments efficacy rates against larvae which infested 1 day before the treatments were 94.7% for Ivermectin 0.2mg kg-1 and 91.8%, 97.2%, and 99.7% for Moxidectin 0.1; 0.2 and 0.4mg kg-1, respectively. Infestations that occur 5 days after the treatments (counts on day +26) showed mean counts and efficacy of 165.5 for the control group; 174.5 (8.3%); 109.5 (45.9%), and 22.9 (87.8%) for Moxidectin 0.1; 0.2 and 0.4mg kg-1 respectively, and 28.0 (85.2%) for Ivermectin 0.2 mg kg-1, showing the residual effect of the two last treatments.

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Published

2013-11-26

Issue

Section

ANIMAL REPRODUCTION

How to Cite

Efficiency of Moxidectin in Boophilus microplus tick control in cattle artificially infested. (2013). Bulletin of Animal Husbandry, 63(2), 89-96. http://35.198.24.243/index.php/bia/article/view/1272

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