女贞子粉及其萃取物对断奶仔猪生产性能和免疫功能的影响  

The effects of Ligustrum lucidum and its extraction on growth performance and immunity in weaned piglets

作　　者：侯磊[1] 单安山[1] 李建平[1] 单芝丹[1] 

机构地区：[1]东北农业大学动物营养研究所

出　　处：《中国饲料》2011年第9期25-27,共3页China Feed

基　　金：国家生猪产业技术体系项目(nycytx-009);黑龙江省科技攻关重大项目(GA07B201);东北农业大学创新团队发展计划(CXT006)

摘　　要：本试验旨在研究女贞子粉及其萃取物对断奶仔猪生产性能和免疫功能的影响及其机理探讨。选择28日龄、体重平均(7.4±0.4)kg的72头断奶仔猪(杜洛克×长白×大约克),随机分为4个处理组,每组3个重复,每个重复6头仔猪,公母各半。第1组为对照组,饲喂基础日粮,2～4组分别在基础日粮中添加1%女贞子粉,0.1%女贞子萃取物和100 mg/kg金霉素,试验期28 d。结果表明,女贞子粉及其萃取物对断奶仔猪平均日增重、平均日采食量及料重比无显著影响(P>0.05);女贞子粉及其萃取物显著提高了脾脏指数、血清IgG水平(P<0.05),萃取物组同时显著提高了血清C3水平(P<0.05)。结果提示,在日粮中添加女贞子粉及其萃取物可以改善仔猪生产性能,提高机体的免疫功能,且萃取物效果略优于女贞子粉。This experiment was conducted to study the effect of Ligustrum lucidum （LL） and its extract （LLF.）on growth performance and immunity in weaned piglets.Seventy-two crossbred （DuroexLandracexYorkshire） weaned pigs with similar boby weight （7.4±0.4）kg,were randomly assigned to four dietary treatments with three replicates of six pigs each pen （three gilts and three barrows ）.The experiment lasted for 28 days.The control group was fed basal diet,while the testing groups were fed basal diet supplemented with 1% Ligustrum lucidum,0.1% Ligustrum lucidum extract （LLE）and 100 mg/kg Chlortetracycline,respectively.The results showed that： （1）LL and LLE had no significant effects on average daily gain,average daily feed intake and the feed conversion ratio （P 〉 0.05） ; （2）LL and LLE significantly increased spleen index and IgG levels in serum （P 〈 0.05） ,while LLE significantly improved C3 levels in serum （P 〈 0.05）.These results showed that LL and LLE had positive effects on the growth performance and immunization of weaned piglets,while the effect of LLE was slightly better than LL.

关 键 词：女贞子粉 断奶仔猪 萃取物 生长性能 免疫功能 

分 类 号：S816.7[农业科学—饲料科学]