2017—2019年广西玉林市牛羊口蹄疫和小反刍兽疫血清抗体检测

为了解广西玉林市牛羊口蹄疫(FMD)和小反刍兽疫(PPR)免疫情况,2017—2019年采用酶联免疫吸附试验(ELISA),对从玉林市7个县(市、区)234个种畜场、规模养殖场和散养户采集2244份羊血清和922份牛血清样本进行O型、A型和亚洲I型FMD以及PPR免疫抗体检测,并比较不同年份、不同地区的免疫抗体水平.结...

Detection of Serum Antibodies against FMD and PPR in Sheep and Cattle in Yulin City of Guangxi during 2017 to 2019

In order to identify the status of immune against foot-and-mouth disease(FMD)and peste des petits ruminants(PPR)in cattle and sheep in Yulin City of Guangxi,922 cattle serum and 2244 sheep serum samples collected from 234 breeding farms,scale farms and free-range households in 7 counties(cities,district)of Yulin City were detected for antibodies against FMD-O,A and Asia I and PPR by enzyme-linked immunosorbent assay(ELISA)from the period of 2017 to 2019,and the levels of the above antibodies were compared by years and regions.The results showed that the farm/herd and individual qualified rates of antibodies against FMD-O in sheep and cattle generally remained above 70%,but were lower in certain regions(P<0.05);the qualified rate of antibodies against FMD Asia I was lower in 2017,but increased up to above 80%since 2018;that against FMD-A was generally lower than 70%,and that against PPR was increasing year by year and remained above 70%,without any regional difference(P>0.05).In conclusion,the overall immune effects against FMD-O and Asia I and PPR were relatively good,except the immune effect against FMD-A that was poor,indicating an uneven level in various regions to some extent.Vaccination and monitoring against FMD and PPR should be thus strengthened according to specific conditions in each region,so as to safeguard a high immune level in cattle and sheep there.Therefore,relevant technical support was provided for effective prevention and control of such diseases.