摘要
为了探讨紫锥菊作为免疫增强剂的免疫效果和机理,本试验用1日龄的罗斯308肉鸡作为试验材料并用传染性法氏囊疫苗进行免疫。紫锥菊提取物分3种剂量组(A组0.1 mL/只、B组0.5 mL/只、C组1 mL/只)在6日龄开始连续给雏鸡口服7 d,在13,20,27,34,41日龄采血检测外周血中法氏囊病毒抗体,同时测定外周血中IL-2和TNF-α的含量,计算肉鸡的生产性能。结果表明,紫锥菊提取物能明显提高鸡外周血中法氏囊病毒抗体滴度,以及细胞因子IL-2和TNF-α含量,并能改善肉鸡的生产性能。所用3个剂量组中,以B组的0.5 mL/只为最佳的用药剂量。说明紫锥菊提取物具有明显的免疫促进作用。
To explore the immune regulation role of Echinacea purpurea,1-day-old broiler of Ross 308 were vaccinated with infectious bursal disease(IBD) vaccine.At 6 day old three experimental groups were given orally Echinacea purpurea extracts with the different dosages(A group 0.1 mL,B group 0.5mL,C group 1mL) and continued for 7 days.On 13th,20th,27th,34th and 41th days the antibody levels to IBDV,contents of IL-2 and TNF-α,and performances were determined.The results showed that application of Echinacea purpurea extracts could significantly increase the IBDV antibody levels,IL-2 and TNF-α contents in the blood and improve performances of broilers.The best result was achieved in the 0.5 mL dosage group.It suggested that the Echinacea purpurea has an obvious immune regulation effect.
出处
《畜牧与兽医》
北大核心
2008年第9期5-8,共4页
Animal Husbandry & Veterinary Medicine
基金
河北农业大学科技将帅计划项目(2005-17)
