日粮蛋白质对羊胃肠道线虫感染影响及作用机制研究进展

Review on its Effects and Mechanisms of Dietary Protein on Gastrointestinal Nematode Infections in Sheep and Goat

胃肠道线虫感染是世界上反刍动物生产的重要制约因素之一,过去主要依靠药物来进行预防和控制,造成了线虫抗药性的增加,因此迫切需要研究非药物措施来减少驱虫药在养羊生产中的使用。研究表明,增加日粮中蛋白质水平或利用优质蛋白饲料原料能够降低胃肠道线虫在宿主体内的定植和繁殖,提高宿主对胃肠道线虫的抵抗力和恢复力。文章介绍了日粮蛋白质对羊胃肠道线虫感染的影响及其作用机制,为控制胃肠道线虫感染提供参考。

Parasitic nematodes of the gastrointestinal tract has been reported as a major limiting factor to ruminant production worldwide.However,until now,control of these parasitic diseases has normally relied on chemical anthelmintic in China.The increasing prevalence of anthelmintic resistance in small ruminant has provided us a spur for research into alternative strategies that aim to reduce reliance upon using chemoprophylaxis.The researches show that before or at times of gastrointestinal nematode(GI)infections,an increased supply of protein and high quality protein feed can reduce GI establishment and fecundity,and increase the‘resilience'and‘resistance'of the host to gastrointestinal nematode infection.Therefore,this article provides a brief overview of the effects and mechanisms of dietary protein on gastrointestinal nematode infections in sheep and goat,in order to provide an alternative approach to control GI infections.