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《Heilongjinag Journal of Animal Science and Veterinary Medicine》 2002-12
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A Survey of Drug Resistance to Coccidiostats of Eimeria spp Isolated from Qinghuangdao

CHEN Li-feng,LI Yun-yu,LI Pei-guo,et al (Dept.of Animal Science,HVTTC,Changli 066600,China)  
The sensitivity of 6 mixed species of Eimeria hagani,E.tenella,E.praecox,E.mitis,E.acervulina and E.necatrix from Qinghuangdao,Hebei province in China to 9 common used coccidiostats was investigated in broilers.Based on the criteria of percent of optimum anticoccidial activity(POAA),relative oocyst production(ROP) and reduction of small intestinal and cecal lesion scores(RLS), the experiment revealed that the six species were light resistant to Maduramicin,Salinomycin,medium resistant to Lasalocid,Amprolium,high resistant to Zoalene,Clopidol and Halofuginone,and not resistant to Diclazuril.