山东聊城地区规模化养猪场中重要病毒性传染病的流行情况调查与分析

doi:10.12160/j.issn.1672-5190.2020.03.018

Abstract

Abstract: The objectives of this study were to understand the prevalence of several viral infectious diseases with clinical importance in large-scale pig farms near Liaocheng, Shandong Province, including porcine reproductive and respiratory syndrome （PRRS）, porcine epidemic diarrhea （PED）, classical swine fever （CSF）, porcine circovirus type Ⅱ （PCV-2） infection and porcine pseudorabies （PR）, and to evaluate the antibody protection level against the infections caused by these viral pathogens. Enzyme-linked immunosorbent assay （ELISA） was used to detect and analyze the blood samples from 6 large-scale pig farms near Liaocheng. The results showed that the overall antibody positive rates of PCV-2, porcine reproductive and respiratory syndrome virus （PRRSV）, classical swine fever virus （CSFV）, pseudorabies virus-gB （PRV-gB）, and PRV-gE were 69.64%, 87.76%, 74.17%, 87.10% and 77.04%, respectively. Furthermore, the antibody positive rates of PCV-2, PRRSV, CSFV and PRV-gB exhibited an upward trend compared with the previous years, indicating that the pig farms had begun to attach importance to the vaccine prevention. However, the positive rate of PRV-gE has reached up to over 70%, which tells a potential risk of wild-type PRV infection and attention should be constantly given.

Key words: CSFV, PRV, PRRSV, PCV-2, ELISA

CLC Number:

S858.285.3

ZHU Li-xiu, ZHAO Jian-wei, LIU Wen-qiang, TIAN Si-yu, SUN Zhi-yu, ZHANG Xin-yu. Prevalence Investigation and Analysis of Clinically Important Viral Infectious Diseases in Large-scale Pig Farms in Liaocheng, Shandong Province[J]. Animal Husbandry and Feed Science, 2020, 41(3): 92-95.

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Prevalence Investigation and Analysis of Clinically Important Viral Infectious Diseases in Large-scale Pig Farms in Liaocheng, Shandong Province

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