约氏乳杆菌对断奶仔猪生产性能、血液学指标、脏器指数和组织病理学的影响  

Effects of Lactobacillus Johnsonii on Growth Performance, Hematology Indices, Organ Indices and Tissues Histopathology in Weaned Pigs

作　　者：王黎琦 汪攀[2] 曹珺[1] 田耀耀 王安如[2] 闫轶洁[2] 龚利敏[1] 

机构地区：[1]中国农业大学动物科技学院,动物营养学国家重点实验室,农业部饲料安全与生物学效价重点实验室,北京100193 [2]北京大北农科技集团股份有限公司,饲用微生物工程国家重点实验室,北京100080

出　　处：《中国畜牧杂志》2016年第21期76-80,共5页Chinese Journal of Animal Science

基　　金：资助项目:饲料和饲料添加剂生物效价与安全评价技术研究

摘　　要：本试验研究了饲粮添加不同水平约氏乳杆菌对断奶仔猪生产性能、血液学指标、脏器指数和组织病理学的影响,以评价约氏乳杆菌的耐受性。试验选用180头28日龄三元杂交（杜×长×大）断奶仔猪,随机分为5个处理,每个处理6个重复,每个重复6头猪,对照组基础饲粮中不添加约氏乳杆菌,4个处理组分别在基础饲粮中添加1.0×10^5、1.0×10^6、1.0×10^7和1.0×10^8CFU/g约氏乳杆菌,试验期28 d。结果表明：与对照组比较,饲粮添加1.0×10^5～1.0×10^8CFU/g约氏乳杆菌处理组的仔猪,其耗料增重比均显著降低（P〈0.05）,且各处理组间差异不显著（P〉0.05）;饲粮添加1.0×10^7和1.0×10^8CFU/g约氏乳杆菌组,其肝脏指数显著高于其他各组（P〈0.05）,其他指标各组间均无显著差异（P〉0.05）。综上所述,饲粮添加约氏乳杆菌会显著改善断奶仔猪耗料增重比;饲粮添加1.0×10^7和1.0×10^8CFU/g约氏乳杆菌对断奶仔猪肝脏指数有显著影响;饲粮添加高达1.0×10^8 CFU/g约氏乳杆菌对断奶仔猪组织病理观察无不良影响。The objective of this experiment was to evaluate the effects of Lactobacillus johnsonii on growth performance, hematology indices, organ indices and tissues histopathology fed to weaned pigs. A total of 180 weaned pigs （DurocxLandracexLarge White） were randomly divided into 5 treatments with 6 pens per treatment and 6 pigs per pen in a 28-d treatment. The control group fed a corn-soybean meal basal diet and treatments supplemented with 1.0×10^5, 1.0×10^6, 1.0×10^7 and 1.0×10^8 CFU/g of Lactobacillus johnsonii. The results show that： compared with the control group, the 1.0×10^5-1.0×10^8 CFU/g Lactobacillus johnsonii treatments significantly decreased feed conversion ratio （P〈0.05） and there were no difference （P〉0.05） between treatments; The supplementation of 1.0×10^7 and 1.0×10^8 CFU/g of Lactobacillus johnsonii significantly increased the liver index compared with the other groups （P〈 0.05）. Other indexes showed no differences among all groups （P〉0.05）. In summary, the diet supplemented with Lactobacillus johnsonii significantly decreased feed conversion ratio; the 1.0×10^7 and 1.0 ×10^8 CFU/g Lactobacillus johnsonii groups significantly increased the liver index; Lactobacillus johnsonii added up to 1.0×10^8 CFU/g did not changethe tissues histopathology in weaned pigs＇ organs.

关 键 词：约氏乳杆菌 断奶仔猪 生长性能 血液学 脏器指数 组织病理学 

分 类 号：S828.5[农业科学—畜牧学]