奶牛乳房炎疫苗预防效果试验

2005年2月郑州牧业工程高等专科学校附属兽医院对郑州市2个奶牛小区的208头奶牛使用西班牙进口乳房炎疫苗进行预防注射，并对预防效果进行了近一年的跟踪观察和记录，有效率为91.83%。2005年10月又对郑州市周边、原阳县等8个奶牛小区的2535头奶牛使用该疫苗进行了预防注射，一年的预防效果显示有效率为92.44%，证实采用该疫苗预防奶牛乳房炎效果可靠，值得推广。

Experiment about Dairy Cattle Mastitis Vaccine's Preventive Effects

In February,2005,208 dairy cattle,bred at 2 dairy cattle housing estate in Zhengzhou city,were vaccined the Spain dairy cattle mastitis vaccine by Zhengzhou College of Animal Husbandry Engineering Animal Hospital,and the preventing effects was observed,and wrote down for one year,for a 91.83% efficiency.2535 cow,belong to 8 dairy cattle village around ZhengZhou city and Yuan Yang county, were vaccined the same vaccine,it has efficiency for 92.44% through one year's observation.All those tell us that this kind of dairy cattle mastitis vaccine is reliable and worth being extended.