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首页> 外文期刊>Tropical Animal Health and Production >Effectiveness of strategic anthelmintic treatments in the control of gastrointestinal nematodes and Fasciola gigantica in cattle in Iringa region, Tanzania
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Effectiveness of strategic anthelmintic treatments in the control of gastrointestinal nematodes and Fasciola gigantica in cattle in Iringa region, Tanzania

机译：战略性驱虫治疗对坦桑尼亚伊林加地区牛的胃肠道线虫和巨大Fasciola的控制作用

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A longitudinal field trial was conducted to determine the effectiveness of strategic anthelmintic treatments in the control of gastrointestinal (GI) nematodes and Fasciola gigantica in cattle. A total of 167 cattle (6-18 months) from three large-scale dairy farms, four traditional farms and nine small-scale dairy farms were randomly selected. The selected animals on each farm were ear tagged and allocated into three groups based on live weight and treated as follows: Group T4 was treated with albendazole 10% drench at 10 mg/kg four times a year (mid rainy, end of the rain, mid dry and late dry/early rainy season). Group T2 was treated with albendazole 10% drench at 10 mg/kg two times a year (mid rainy and late dry/early rainy season). Group UT remained as untreated control. Faecal, blood and pasture samples were taken every month for 13 months. In addition, individual body weight (BWT) was measured on every sampling date. Results showed that two and four strategic treatments significantly reduced faecal egg counts (FEC) by 49.5% and 62.3% respectively compared to untreated control animals (P < 0.001). Two and four strategic treatments per year significantly reduced the proportion of animals passing Fasciola eggs in faeces by 30.6% and 51.7% (P < 0.001), respectively. Animals treated two and four times a year significantly outgained untreated animals by 14.8 kg and 17.7 kg respectively at the end of the trial (P < 0.05). The management system had a significant effect on packed cell volume and the proportion of animals passing Fasciola eggs in faeces (P < 0.05). The programme of two strategic treatments per year was only effective in controlling GI nematodes. It is concluded that a programme of four strategic treatments per year was effective in controlling GI nematodes and F. gigantica and improved weight gain.
机译：进行了一项纵向田间试验，以确定策略性驱虫治疗在控制牛的胃肠道（GI）线虫和巨大Fasciola gigantica中的有效性。随机选择了来自三个大型奶牛场，四个传统猪场和九个小型奶牛场的167头牛（6-18个月）。对每个农场中选定的动物进行耳标，并根据活重将其分为三组，并按以下方式进行处理：T4组每年以10 mg / kg的浓度10％的阿苯达唑进行4次处理（中雨，下雨，中期干燥和后期干燥/早期雨季）。 T2组一年两次以10 mg / kg的阿苯达唑10％浸水治疗（雨季中期和干燥后期/早期雨季）。 UT组仍作为未治疗的对照组。每月采集粪便，血液和牧场样品，共13个月。另外，在每个采样日期测量个体体重（BWT）。结果显示，与未治疗的对照动物相比，两种和四种策略治疗分别使粪便卵数（FEC）分别降低了49.5％和62.3％（P <0.001）。每年进行两次和四种战略治疗，分别使粪便中通过Fasciola卵的动物比例分别降低了30.6％和51.7％（P <0.001）。在试验结束时，一年治疗两次和四次的动物分别比未治疗的动物多了14.8千克和17.7千克（P <0.05）。管理系统对粪便中细胞的堆积细胞体积和通过Fasciola卵的动物比例有显着影响（P <0.05）。每年两次战略治疗的计划仅在控制胃肠道线虫方面有效。结论是，每年有四种战略治疗方案可有效控制胃肠道线虫和巨大镰刀菌并改善体重。

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