本试验挑选大小均匀一致的AA肉鸡420只,随机分成14组,每组30只,其中7组做预防保护试验,7组做治疗试验.结果表明,在保护率及有效率上试验药物高、中剂量组相比差异不显著(P＞0.05);与硫酸新霉素对照组、药物低剂量组相比差异显著(P＜0.05),与黄芪多糖对照组相比差异极显著(P＜0.01).试验药物低剂量组与硫酸新霉素对照组相比差异不显著(P＞0.05).在保护率及有效率上试验药物高、中剂量组相比差异不显著(P＞0.05);而与硫酸新霉素对照组、药物低剂量组相比差异显著(P＜0.05),而与黄芪多糖对照组相比差异极显著(P＜0.01).试验药物低剂量组与硫酸新霉素对照组相比差异不显著(P＞0.05).试验药物低剂量组与硫酸新霉素对照组差异不显著(P＞0.05),这说明本试验品高、中剂量组能够有效地预防和治疗雏鸡的大肠杆菌病.%We chose 420 AA kero-chicken of uniform size and divide them into 14 groups (30 chicken for each group) randomly. We used seven groups for the prophylactic trial, while the other seven groups for the therapeutic test. The results indicated that there was no significant difference between groups of the investigational drug of high and moderate dose(P＞0. 05);while there was a significant difference compared with the investigation drug of low dose and the FM control group(P＜0. 05);there was a remarkable difference compared with astragalan control group(P＜0.01). The results demonstrated that the high and moderate dose of Western and Chinese medicines could prevent and cure the colibacillosis of chicken effectively.
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