中草药添加剂对蛋雏鸡生长性能和免疫功能的影响

EFFECTS OF CHINESE MEDICAL HERBS ONCHICKENS GROWTH AND IMMUNIZATION

本试验选用黄芪、党参、白术、当归、女贞子、五味子、枸杞子、刺五加、黄芩、山楂和干姜等十一种补益类单味中草药作饲料添加剂,研究中草药添加剂对蛋雏鸡生长性能与免疫机能的影响。各组基础日粮相同,以抗生素组(添加50mg/kg杆菌肽梓)作对照,试验组日粮中分别添加1%中草药。本试验测定了雏鸡体重、增重及免疫器官相对重,于3周龄时接种新城疫疫苗,每组试鸡又分两组,一组接种0.2ml新城疫疫苗,另一组接种新城疫疫苗0.5ml,通过检测血清抗新城疫抗体效价(采用半微量血凝抑制试验,HI)评价中草药添加剂的免疫促进作用。结果表明,各试验组雏鸡体重和增重与对照组相比无显著差异,表明所用十一种中药与抗生素具有同样的促生长作用。刺五加组法氏囊相对重显著高于其它组,其余各组脾脏与法氏囊相对重均差异不显著。HI结果表明,根据各组HI达到高峰时计,接种0.5ml新城疫疫苗雏鸡HI高于接种0.2ml新城疫疫苗。0.2ml新城疫免疫鸡与对照组相比,女贞子和刺五加组的HI显著提高,其它组与对照组相比差异不显著,其中党参、枸杞子、干姜、白术和黄芩组HI水平较高。受新城疫强毒攻击后,除枸杞子组HI水平显著高于对照组外(P<0.05),其余各组与对照组相比差异不显著。接种0.5ml新城疫疫苗雏鸡与对照组相比,女贞子组HI水平显著提高,

Effects of selective Chinese medical herbs(added to diet at 1%,respectively)on growth and immunization of chickens were studied.Results showed that mean body weight and daily gain of chickens in all of studied groups were similar to control group.The bursa relative weight of chickens in acanthopanax scenticosns group was highed significantly than others(P<0.05).Serum antibody titres to ND of 0.2ml immunized chickens in ligustrum lucidum and acanthopanax scenticosns group were significantly higher contrast to control,meanwhile,Ginder,Atractylodes macrocephala,codonopsis,lycium and scutellaria groups had higher serum antibody titres than control too,but no significant difference was observed.Serum antibody titres to ND of 0.5ml immunized chickens in ligustrum lucidum group were significantly increased compared to control.Serum ND antibody titers of the birds in ligustrum lucidum,schisandra,acanthopanax scenticosns and codonopsis groups were higher contrast to control after immunized with NDV.In conclution,immunization effects of ligustrum lucidum,codonopsis,lycium,schisandra and acanthopanax scenticosns were better than other Chinese medical herbs used in the present study.