The objective of this study was to determine the effect of traditional medicinal plants typical to Central Europe as well as organic selenium on increasing the resistance of lambs to gastrointestinal nematode (GIN) infection with Haemonchus contortus. 21 female lambs were infected with third-stage larvae of H. contortus on the day (D) 0 and re-infected on D49 and D77. The animals were divided into three groups based on a treatment diet: a basal diet (control), a diet enriched with dry plants (Herbmix), and a diet enriched with selenized yeast (Selplex). The number of eggs per gram (EPG) of feces was quantified on D21, D28, D35, D42, D49, D56, D63, D70, D77, D84, D91, D98, D105, D112, and D119. The mean reductions in EPG on D28 were 43.4 and 28.6% for Selplex and Herbmix, respectively. The reduction in egg output was nearly uniform throughout the experiment for Selplex. However, for Herbmix the mean reduction was only 19.8% up to D91 and 46.1% after D91. Glutathione peroxidase activity in the blood from D35 to D98 was two to three-fold higher for Selplex than the other groups. Both supplements slowed the dynamics of GIN infection and gradually increased the resistance of lambs against ovine haemonchosis.

中文翻译：

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药用植物和有机硒对羊驼羊病的影响

这项研究的目的是确定中欧地区典型的传统药用植物以及有机硒对提高羊肉对弯曲杆菌Hautechus controtus的胃肠道线虫（GIN）感染的抵抗力的作用。21只女性羊羔被感染的第三期幼虫捻转血矛线虫（D）天0，然后在D49和D77上再次感染。根据治疗饮食将动物分为三类：基础饮食（对照），富含干植物的饮食（Herbmix）和富含硒化酵母的饮食（Selplex）。在D21，D28，D35，D42，D49，D56，D63，D70，D77，D84，D91，D98，D105，D112和D119上定量每克粪便中的卵数（EPG）。对于Selplex和Herbmix，D28的EPG平均降低分别为43.4和28.6％。在整个Selplex实验中，产蛋量的减少几乎是均匀的。但是，对于Herbmix，D91之前的平均降低仅为19.8％，而D91之后的平均降低仅为46.1％。Selplex的D35至D98血液中的谷胱甘肽过氧化物酶活性比其他组高2至3倍。