鸡卵黄抗体在防治仔猪大肠杆菌性腹泻中的应用

Application of Chicken Egg-Yolk Antibodies in Passive Protection of Piglets Diarrhoea Caused by Enterotoxigenic Escherichia coli

仔猪大肠杆菌性腹泻病的致病过程主要与产肠毒 素型大肠杆菌菌毛 介导的粘附作用和产肠毒素密切相关。用禽菌毛抗原免疫产蛋母鸡制备卵黄抗体，在初 生仔猪和断奶仔猪的人工感染实验中，口服卵黄抗体能降低腹泻程度和仔猪的死亡率；在商 业性猪场的实验表明卵黄抗体能降低提前断奶仔猪的腹泻发生率，并且有利于仔猪的增重。 鸡卵黄抗体是仔猪大肠杆菌性腹泻病的一种新的防治方法。本文就国内外用鸡卵黄抗体防治 仔猪大肠杆菌腹泻的研究概况作了简要介绍。

Diarrhoea of neonatal and post-weaning piglets strongl y related with t he fimbriae mediated adhesion and toxins producing ability of enterotoxigenic E scherichia coli (ETEC). Chicken egg-yolk antibodies against fimbriae of ETEC w ere used in some trial. In these trial orally administration of chicken egg-yolk a n tibodies reduced the incidence and severity of diarrhoea, and reduced the mortal ity of piglets, and increased liveweight gains. It is a new method to use chicke n egg-yolk antibodies in prevent and therapy piglets diarrhoea. This paper made a simple review in this field around the world.