现代畜牧兽医Issue(3)：11-15,5.DOI:10.20154/j.cnki.issn1672-9692.2026.03.003
云南某规模化猪场猪链球菌分离鉴定及药敏结果分析
Isolation,identification,and analysis of drug sensitivity results of Streptococcus suis in a large-scale pig farm in Yunnan
李月 1陈柏蓉 1王李玲 1孙克会 1陶松 1李明1
作者信息
- 1. 云南神农畜牧有限公司,云南 昆明 650000
- 折叠
摘要
Abstract
Recently,a large-scale pig farm in Yunnan experienced an increasing number of pigs exhibiting neurological symptoms and lameness,suspected to be caused by Streptococcus suis infection.This led to a rise in the culling rate,negatively impacting the farm's production efficiency.To identify the cause as soon as possible,brain,lung,and joint fluid samples were collected from diseased pigs in different barns for bacterial isolation and identification,16S rRNA amplicon sequencing,16S rRNA sequence determination of isolated strains,drug susceptibility testing,and serotyping.The results showed that five strains of Streptococcus suis were isolated from five samples.16S rRNA amplicon sequencing revealed that the V3～V4 region sequences of Streptococcus suis in brain tissues from six pigs with neurological symptoms accounted for 93%of the effective sequences,indicating that Streptococcus was the dominant bacterium in the brain tissues of affected pigs.Drug susceptibility testing showed that the five Streptococcus suis strains were sensitive to enrofloxacin and amoxicillin.Serotyping identified three strains as Streptococcus suis type 4 and two strains as type 5.The study showed that the three isolated strains of Streptococcus suis type 4 and the two strains of Streptococcus suis type 5 were all sensitive to amoxicillin and enrofloxacin.关键词
猪链球菌/分离鉴定/药敏试验Key words
Streptococcus suis/isolation and identification/drug susceptibility testing分类
农业科技引用本文复制引用
李月,陈柏蓉,王李玲,孙克会,陶松,李明..云南某规模化猪场猪链球菌分离鉴定及药敏结果分析[J].现代畜牧兽医,2026,(3):11-15,5.
