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Seroiogicla Survey Of Pseudorabies In Pudong New Area

Posted on:2015-11-20Degree:MasterType:Thesis
Country:ChinaCandidate:L Q XuFull Text:PDF
GTID:2283330476452988Subject:Veterinarians
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Pseudorabies virus(Pseudorabies) is also called the itching disease, swine herpesviru s type 1, is an acute infectious disease, by the herpes virus, porcine herpesvirus of ps eudorabies virus(Pseudorabies virus, PRV) caused high contact infection, is characteriz ed by cough, movement disorders, itching, fever and encephalomyelitis, infected horses,sheep and cattle, dogs and wild animal, the pig infection is the most common, mainl y caused by the reproductive sow abortion, stillbirth, fetal mummies.Infection in newborn piglets after the emergence of a large number of death, the mortality was 100%; boars infection appears to infertility, semen quality decline and e ven loss of breeding value; finishing pigs were recessive infection showed slow growt h, the disease is prevalent in swine industry, caused huge economic losses. The World Health Organization(OIE) distribute it to B type of loemia, similarly it is classified a s second kind of loemia in China.With the development of pig industry in Pudong New Area, introduction and tran sportation, intensive frequent continuously improve, not better implement the eradicatio n program, porcine pseudorabies infection shows complex trend. In recent years, in or der to eradicate the disease prevention and control, Pudong New Area farm for swine pseudorabies was immunized with gE gene deletion vaccine, pseudorabies virus gE kit using matching can be quickly detected in porcine pseudorabies virus antibody, and m onitoring and understanding of swine pseudorabies virus infection. In order to understa nd the infection situation in Pudong area of swine pseudorabies virus, PRVgE-ELISA antibody detection kit to detect the PRV-gE antibody of the porcine serum on 15 Pud ong New Area scale pig farms in 2011 January-2013 year in July. At the same time,the other related kit for detection of antibody against PRV-g B. Detection and provide scientific basis for immunization program, reasonable and effective prevention and co ntrol of porcine pseudorabies in Pudong New Area.Results of serological survey in January, 2011-2013 year in July, Pudong New A rea was detected by 15 large-scale pig farms swine serum samples of 4414, PRV-gE a ntibody and PRV-gB antibody positive number respectively is 1573, 4240, the positive rates were 35.5%, 96.6%, the pig PRV-gB antibody positive rate was more than 90%,while the PRV virus infection the positive rate of PRV-gE antibody between 14%-58%, explained that the Pudong area farms in PRV wild virus infection is still serious; i n different years in Pudong area from 15 different farms for serum PRV-gE antibody positive rate of wild virus infection situation, 2011 29.9%, 2012 33.3%, 2013-7 mont h January 49.6%, has increased year by year trend; in 2011 January-2013 years in P udong area in July 10 farms, the positive rate of swine PRV virus antibody PRV-gE o f different age stages were 25.3%, 28.4% piglets piglets, sow 51.4%, reserve pigs 47.7%, the positive rate was suckling piglets < piglets < reserve pigs < sows, including p roduction of sows reserve pigs, are at about 50%, the recessive infection is serious, se rious swine virus.Investigation on the serological epidemic monitoring and control for Pudong New Area development of porcine pseudorabies eradication, formulate scientific and immun e, provide the basis for the scheme, significance.
Keywords/Search Tags:Pudong New Area, Porcine pseudorabies, Serological investigation, PRV-gE antibody, PRV-gB antibody
PDF Full Text Request
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