摘要
奶牛乳房炎是一种多因素疾病,给世界各国奶牛业造成了巨大的经济损失。越来越多的试验研究表明乳房炎的发病率和严重性与牛群中的VE和硒的水平有关。日粮中添加维生素E(VE)和硒(Se)能降低临床乳房炎的发病率,并能缩短病程,二者中任何一个缺乏其生理后果是中性白细胞活性的降低。本文的目的是综述VE和Se在抗奶牛乳房炎中的作用,并阐明分析VE和Se增强多形核白细胞活性的免疫学机制。
Bovine mastitis is a kind of complicated disease with pathogens, and brought a large economy losses to bovine industry all over the world. Accumulating evidence shows that the incidence and severity of mastitis is related to the vitamin E and Se status of a dairy herd. VE and Se are essential nutrients that share common biological activities. Cows supplemented with both vitamin E and Se have lower incidence of clinical mastitis and shorter duration of clinical signs. A known physiological consequence of Se or VE deficiency is reduced polymorphonuclear cells (PMN) activity. This article summarized the role of VE and Se in host defense against mastitis, and clarified the immunology mechanisms of increased PMN activity by VE and Se.
出处
《家畜生态》
2004年第4期172-176,共5页
Ecology of Domestic Animal
