Pathogen Detection and Analysis of Sow Abortions in a Pig Farm in Guangdong
NIE Jingjing
CHEN Jialu
CHEN Jiayue
XU Shaodong
QU Yunzhi
LIU Zhicheng
ZHANG Jianfeng
ZHANG Chunhong
Abstract：In January 2024,some pregnant sows experienced clinical cases such as miscarriage and stillbirth in a large-scale pig farm in Guangdong Province.To diagnose the cause of the outbreak,blood samples from aborting sows and organs samples from stillborn fetuses were collected.Common pathogens causing miscarriage in sows,such as Porcine Circovirus 2/3(PCV2/3),Porcine Reproductive and Respiratory Syndrome Virus 2(PRRSV2),Porcine Pseudorabies Virus(PRV),Toxoplasma gondii,etc.,have been detected using fluorescence quantitative PCR methods.Then,the genotypes and subtypes of the detected pathogens were to identify via nucleic acid sequencing analysis.In addition,the bacterial pathogens were isolated and identified,and used for screening sensitive drugs to guide clinical medication.The results showed that PCV2d and Aeromonas rivipollensis are the main pathogens causing the disease of pregnant sows in this pig farm,and the latter is sensitive to penicillin,amoxicillin,cefradine,and florfenicol,indicating that these candidate drugs can be used for clinical treatment.
Keywords：Porcine Circovirus subtype 2dAeromonas rivipollensisAntibiotic sensitivity test
Publication Date：2025-02-17
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：8( 110-117 )