摘要
以猪瘟兔化弱毒细胞苗分别免疫 3组初生仔猪 ,每头 1.5头剂。第 1组 2 0头先免疫 ,1小时后吸初乳。第 2组 15头 ,吸初乳后 1小时免疫。第 3组 13头 ,吸初乳后半小时免疫。 75日龄 ,以猪瘟弱毒单抗酶联方法测定 3组动物的平均抗体(OD值 )分别为 0 .2 5、0 .2 3及 0 .2 1。 80日龄 ,每组各随机抽出 4头猪 ,连同非免疫对照猪 6头以猪瘟石门系强毒攻击后 ,对照猪全死 ,第 1组 10 0 %保护 ,第 2组 75 %保护 ,第 3组 5 0 %保护。第
Three groups of new_born piglets were immunized with 1.5 doses of the calf testic cell culture vaccine of rabbit adapted strain(C strain) of Hog Cholera virus.Twenty piglets(Group 1)were vaccinated 1 hour before being given colostrum,15(Group 2),1 hour and 13(Group 3)0.5 hour after being given colostrum.The average serum antibody titers(O D value)of Group 1,2 and 3 were 0.25,0.23 and 0.21,respectively,by ELISA test 75 days postvaccination.Four vaccinated pigs randomly chosen from each group,together with 6 control pigs were challenged with the virulent shimen strain of Hog Cholera Virus 80 days postvaccination.The challenge results indicated that the protective rates of Group 1,2 and 3 were 100%,75% and 50%,respectively,with the death of all control animals.
出处
《中国预防兽医学报》
CAS
CSCD
北大核心
2001年第2期125-127,共3页
Chinese Journal of Preventive Veterinary Medicine
基金
"九五"国家攻关课题
关键词
猪瘟
零天免疫
免疫效果
仔猪
Hog cholera
New_born piglet immunization
Immunity
