笔者培育出的猪种布氏菌S_(105)菌株,给孕羊皮下注射有效免疫剂量,既不引起孕羊流产,又无注射部位化脓发生,并对不同龄羊和猪进行了不同途径多次免疫试验,结果如下。1 材料与方法1.1 试验动物 猪:内蒙古农牧学院健康良种育成母猪。 成年母羊:在无布病的牧场,用SAT和CFT方法挑选500只阴性2岁龄育成母羊,用于试验。 羔羊:从几年连续布病血清学检验阴性羊群中挑选5～7月龄羔羊。 Breeding of the Brucella S_ (105) strain of pigs, I injected subcutaneously into pregnant sheep effective immunization dose, did not cause abortion of pregnant sheep, and no pus at the injection site, and different ages of sheep and pigs were more ways Secondary immunization test, the results are as follows. 1 Materials and Methods 1.1 Experimental Animal Pigs: Inner Mongolia Institute of Agriculture and Animal Breeding healthy sow into sows. Adult Ewes: 500 negative 2-year-old breeding ewes were selected for SAT using the SAT and CFT methods in a disease-free pasture. Lambs: 5 to 7 month-old lambs are selected from a few consecutive years of seropositive negative herds of brucellosis.