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The objectives of the present study were: (1) to report the percentage of cattle farms with gastrointestinal nematodes (GINs) resistant to levamisole in Veracruz, Mexico, (2) to identify the genera of GINs involved in resistance, and (3) to identify factors associated with these resistances. The...

Becerra-Nava, R.; Alonso-Díaz, M. A.; Fernández-Salas, A.; Quiroz, R. H.
Elsevier B. V., Amsterdam, Netherlands
Veterinary Parasitology, 2014, 204, 3/4, pp 285-290