| 摘要: |
| 用柔嫩艾美耳球虫甘肃株（E.tenella GS，Et GS）对15日龄雏鸡进行感染，以最适抗球虫活性百分率、抗球虫指数、相对卵囊产量和病变记分减少率为指标，进行综合评定，研究了该虫株对三儿球痢灵、地克珠利、氯苯胍和地克珠利氯苯胍合剂等几种常用抗球虫药的敏感性。结果表明，该虫株对三九球痢灵有中度抗药性，对地克珠利和地克珠利氯苯胍合剂有轻度抗药性，对氯苯胍无抗药性。 |
| 关键词: 柔嫩艾美耳球虫 抗药性 抗球虫药 鸡 |
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| 基金项目:科技部科研院所社会公益研究专项资金项目（2001DIA10006）；甘肃省自然科学基金项目（ZS031-A25-045-D） |
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| Studies on drug resistance of Eimeria tenella Gansu strain |
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| Abstract: |
| Chicken were inoculated with Eimeria tenella Gansu strain(Et GS),the assay of drug resistance of Et GS to 4 coccidiostat(Zoalene,Diclazuril,Robenidine and Diclazuril+Robenidine) were conducted.Reduction of lesion scores(RLS),relative oocysts production(ROP) and percent of optimum anticoccidial activity (POAA) were assessed by anticoccidial index(ACI).The experiment results revealed that the strain was intermediately resistant to Zoalene,ligh resistant to Diclazuril and Diclazuril+Robenidine,sensitive to Robenidine. |
| Key words: Eimeria tenella drug resistance coccidiostat chicken |
