Scientific Research Publishing

Read  full  paper  at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=53609#.VMnt1SzQrzE Author(s)     Froylán Ibarra-Velarde * , Yazmin Alcala-Canto , Yolanda Vera-Montenegro Affiliation(s) Department of Parasitology, Faculty of Veterinary Medicine and Zoothecnics, National University Autonomous of Mexico, Mexico City, Mexico . ABSTRACT Acaricide resistance is a major problem that hinders the control of the cattle tick Rhipicephalu s (Boophilus) microplus in Mexico. Permethrin (P), cypermethrin (C) and zeta-cypermethrin (Z) have been used to control R. (B.) microplus , and tick populations have developed resistance to these acaricides. The aim of the present study was to evaluate the effectiveness of a mixture containing P, C, or Z mixed with plant extracts through in vitro laboratory bioassays, using susceptible and triple resistant (San Alfonso) R. microplus strains. Untreated controls received only water. Resul...

Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=52702#.VKDJLcCAM4 Author(s)    Froylán Ibarra-Velarde 1* , Yolanda Vera-Montenegro 1 , Nelyda Saldaña-Hernández 1 , Pedro Ochoa-Galván 2 Affiliation(s) 1 Department of Parasitology, Veterinary Faculty, National University Autonomous of Mexico, Mexico City, Mexico . 2 Department of Genetics, Veterinary Faculty, National University Autonomous of Mexico, Mexico City, Mexico . ABSTRACT The aim of the present study was to compare the coccidicidal efficacy of two commercial compounds for artificially infected dogs. Eighteen cocccidia-free dogs, male and female aged between 2 and 4 months old, were infected each with 20,000 Cyst...