| At present,the scale of enterprises in the pig breeding industry exists in some areas and low industries,scattered with various pig farm problems in pig farms,leading to various pig farm problems in pig farms,swine fever,swine fever,swine fever,PRRS,PR and Foot-andmouth disease spread in various pig farm areas and each pig farm area Using ELISA 9-q PCR to study the impact of Guangxi Zhuang Community Highway 201-2021 1 year area scale using ELISA 201-2020 January-2020 October 2020 October 20-October 20,2020-October20,2020,while Elissa suffered huge losses in the livestock breeding industry across the country,it also affected the cross-regional economy of this city and the city’s pig herds.The pathogens and post-immunization antibodies of tissue and blood samples sent by chemical farms and free-range farmers for inspection,to understand the epidemic situation and vaccine immunization of CSF,PRRS,PR and FMD in large-scale farms and free-range farmers in different regions of Guangxi,Provided for transfer and refinement process.From 2019 to 2021,the positive detection rate of PR and FMD pathogens for swine fever has decreased year by year.According to the pathogen detection results in different regions,the positive detection rate of CSF in Beihai City is high,and more prevention and control should be done.Nanning City has better prevention and control,and positive detection The incidence rate is the lowest;Beihai,Chongzuo,Laibin and Nanning all have positive detection of blue ear,Qinzhou has the highest positive detection rate of 4.76%,Beihai and Qinzhou have PR detection,Baise,No positive cases were detected in Laibin and Yulin City;FMDV-positive cases were detected in other regions except Baise and Yulin.Among the positive rates of pathogens in different seasons,CSFV and PRRSV were detected in Nanning in spring,PRRSV and PRV infection were more common in Qinzhou,and FMDV was only detected in Nanning.In summer,various diseases were positively detected in Qinzhou,Beihai,Laibin and Nanning,suggesting that local farmers should strengthen biosafety prevention and control,pig house environmental management,and increase the frequency of epidemic disease monitoring.In autumn,PRRSV is positively detected in many places,and attention should be paid to prevention and control.In winter,PRRS and PR are mainly found.According to the CSFV antibody test results from 2019 to 2021,the overall antibody positive rate of CSFV is increasing year by year,but the antibody dispersion in 2022 is high,and the antibody level is uneven;The antibody positivity rate is unqualified,and the antibody dispersion in autumn is too large;according to the antibody test results of PRRSV in 2019-2021,the PRRSV antibody positivity rate decreased in 2019-2020,and rebounded in2020-2021,but the antibody dispersion was all in the Higher level;although the levels of antibodies in the four seasons are all qualified,the dispersion of antibodies in autumn and winter is relatively large,and the positive rate of antibodies in Chongzuo City is unqualified in the statistics of different regions.From 2019 to 2021,the positive rate of PRV-g B antibody increased year by year.In the statistics of different seasons,the positive rate of PRV-g B antibody appeared in the spring,and the positive rate of PRV-g B antibody also existed in Fangchenggang and Wuzhou in different regions.Qualified situation;PRV-g E has positive antibody detection,and the positive rate is the highest in autumn,and the antibody dispersion fluctuates greatly in various regions;the antibody positive rate of foot-and-mouth disease is increasing year by year,but the dispersion is high,and the antibody level is uneven;In addition,the positive rates of antibodies in different regions such as Yulin and Qinzhou were unqualified,and the antibody dispersion in different seasons,especially in autumn and winter,was high.Therefore,CSFV,PRRSV,PRV,and FMDV were detected in positive samples in different regions of Guangxi.Among them,four kinds of diseases in Nanning,Laibin and Qinzhou were detected in positive samples.In addition to the 2019 CSF antibody positive rate of 67.35%,the antibody positive levels of CSFV,PRRSV,PRV-g B and FMDV in different years all meet the national standard for immunization vaccine antibody levels,and the PRV-g E antibody results indicate the presence of wild virus infection.There are cases where the positive rate of some antibodies is not up to the standard in different regions of the season,and the dispersion of antibodies is high,indicating that the detection of antibody levels in different seasons and regions should be strengthened,and the immunization program should be improved in time to strengthen the protection of vaccine immunization,so that the antibody level of swine should be stablize. |
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