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首页> 外文期刊>Journal of Poultry Science >Effects of an Oregano Based Dietary Supplement on Performance of Broiler Chickens Experimentally Infected with Eimeria Acervulina and Eimeria Maxima
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Effects of an Oregano Based Dietary Supplement on Performance of Broiler Chickens Experimentally Infected with Eimeria Acervulina and Eimeria Maxima

机译：牛至膳食补充剂对实验感染艾美球虫和最大艾美球虫的肉鸡生产性能的影响

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摘要

A study was conducted to examine the effect of dietary oregano essential oil supplementation on the performance of broiler chickens challenged with Eimeria acervulina and Eimeria maxima at 14 days of age. A total of 375 day-old Cobb-500 male chicks separated into 5 equal groups with three replicates each, were used in this study. Two of the groups, one challenged with 1 X 10(5) sporulated oocysts of E. acervulina along with 1 X 10(5) sporulated oocysts of E. maxima and the other not, were given a basal diet and served as controls. The other three groups also challenged with combined E. acervulina and E. maxima were administered diets supplemented with oregano essential oil by adding the product Orego- Stim (containing 5% oregano essential oil) at the levels of 300 or 600 mg/kg, and the last group the anticoccidial substance salinomycin at the dosage of 60 mg/kg. Following the challenge, survival rate, bloody diarrhea and oocysts excretion, as well as intestinal lesion score were all determined. Throughout the experimental period that lasted 35 days, body weight gain and feed intake were weekly recorded, and feed conversion ratios were calculated. The results showed that dietary oregano oil supplementation in both oregano supplemented groups, attained body weight gains and feed conversion ratios not differing (p>0.05) to those of the non-challenged group or the salinomycin group. The challenged control presented lower (p>0.05) performance than those of the other groups for the consecutive three weeks after the challenge. These performance parameters along with lesion scoring indicated that oregano essential oil exerted an anticoccidial effect against E. acervulina and E. maxima, comparable to salinomycin.
机译：进行了一项研究，以研究日粮牛至精油对14天大时被艾美球虫和极大艾美球虫攻击的肉鸡的生产性能的影响。在这项研究中，总共使用了375天大的Cobb-500雄性小鸡，分为5组，每组3个重复。两组中的一组接受基础饮食并作为对照组，其中一组用1 X 10（5）孢子的大肠埃希氏菌的卵囊以及1 X 10（5）形孢子的大肠埃希氏菌的卵囊攻击，而另一组则不进行基础饮食。另外三组还同时受到了大肠埃希菌和大肠埃希菌的挑战，通过添加牛至精油（含量为5％牛至精油）的Orego-Stim产品（含量为300或600 mg / kg）来补充牛至精油。最后一组剂量为60 mg / kg的抗球虫药物沙利霉素。攻击后，确定存活率，血性腹泻和卵囊排泄以及肠道病变评分。在持续35天的整个实验期间，每周记录体重增加和采食量，并计算饲料转化率。结果表明，在两个牛至补充组中添加饮食牛至油，与非挑战组或沙利诺霉素组相比，体重增加和饲料转化率没有差异（p> 0.05）。挑战后的连续三周内，挑战对照组的表现低于其他组（p> 0.05）。这些性能参数以及病变评分表明，牛至精油对沙丁胺醇和最大埃希菌具有杀球菌作用，与沙利霉素相当。

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