摘要
赖链霉素多杀性巴氏杆菌ＳＤ７２４菌苗株可在含１０～１００００μｇ／ｍＬ链霉素的培养基中大量生长繁殖，其世代时间是３２ｍｉｎ，最高含活菌数可达７４亿个／ｍＬ；在无链霉素培养基中只能繁殖３代左右。ＳＤ７２４菌苗株对鸡两个免疫剂量注射局部反应小，平均病变面积仅为０．６１ｃｍ２；免疫后对鸡增重没有影响。对鸡产蛋量影响小，免疫后１０ｄ内产蛋率下降２．８％，免疫后２０ｄ产蛋率上升１．２％。
The streptomycin-dependent Pasteurella multocida SD 724 vaccine were characterized by luxuriant growth in the culture medium containing 10～10000 μg streptomycin per mL.The generation time was 32 minutes and the great number of live bacteria was 7.4 billions.It can reproduce about three generations in the medium without streptomycin.There was gain weight and little response in the injected part of the chicken for two ImD SD 724 vaccine,arerage area of pathological changes was 0.61 cm 2.There was no significant difference in the rate of eggs production between the vaccinated and unvaccinated hens.
出处
《中国家禽》
北大核心
1998年第7期5-7,共3页
China Poultry
关键词
多杀性巴氏杆菌
菌苗
生长特性
产蛋量
增重
肉质
Pasteurella multocida
bacterin
growth characteristic
egg-production amount
increased body
meat quality
