Multiple resistance of gastrointestinal nematodes to nine different drugs in a sheep flock in southern Brazil.

@article{Cezar2010MultipleRO,
  title={Multiple resistance of gastrointestinal nematodes to nine different drugs in a sheep flock in southern Brazil.},
  author={Alfredo Skrebsky Cezar and Gustavo Toscan and Giovana Camillo and Lu{\'i}s Ant{\^o}nio Sangioni and Henrique Olmedo Ribas and Fernanda Silveira Fl{\^o}res Vogel},
  journal={Veterinary parasitology},
  year={2010},
  volume={173 1-2},
  pages={157-60}
}
Based on clinical observation of a flock of approximately 5000 sheep (breed Merino) from southern Brazil, the failure of anthelmintic treatments was suspected. The sensitivity of the gastrointestinal nematodes that infected these sheep to nine drugs (Levamisole, Moxidectin, Albendazole, Ivermectin, Nitroxynil, Disophenol, Trichlorphon, Closantel, and a combination of Ivermectin, Levamisole and Albendazole) was evaluated. None of the drugs reduced the count of nematode eggs per gram of feces… CONTINUE READING

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