Article
F200Y polymorphism in the β-tubulin gene in field isolates of Haemonchus contortus and risk factors of sheep flock management practices related to anthelmintic resistance.
Veterinary parasitology - 21 Dec 2012
Niciura Simone Cristina Méo, Veríssimo Cecília José, Gromboni Juliana Gracielle Gonzaga, Rocha Marina Ibelli Pereira, de Mello Suelen Scarpa, Barbosa Cristina Maria Pacheco, Chiebao Daniela Pontes, Cardoso Daniel, Silva Giane Serafim, Otsuk Ivani Pozar, Pereira José Roberto, Ambrosio Luis Alberto, Nardon Romeu Fernandes, Ueno Tatiana Evelyn Hayama, Molento Marcelo Beltrão
Abstract excerpt
Haemonchus contortus is the most prevalent and pathogenic nematode of sheep in tropical areas. The objectives of this study were to assess the frequency of the F200Y polymorphism on the β-tubulin gene in third-stage larvae of H. contortus from 33 sheep flocks in São Paulo state, Brazil, and to associate this frequency to risk factors based on farm management practices. The resistance allele frequency varied from...
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