广东地区健康猪群和发病猪群猪链球菌流行病学调查分析

发布时间：2018-02-28 15:07

本文关键词： 猪链球菌健康猪群发病猪群流行病学分析　出处：《中国畜牧兽医》2017年06期 　论文类型：期刊论文

【摘要】：为了解广东地区猪群中猪链球菌(Streptococcus suis,SS)的流行情况,本研究对在广东地区养殖场采集的228份发病猪群样品及698份健康猪群样品(包括455份鼻拭子样品及243份屠宰场扁桃体样品)进行了SS携带情况的统计分析。结果显示,发病猪群SS的阳性率为82.02%(187/228),健康猪群的SS阳性率为42.20%(192/455),其中屠宰场屠宰猪群的SS阳性率为32.10%(78/243)。将从发病猪群分离到的187株SS及健康猪群(含养猪场和屠宰场)分离得到的154株SS进行血清型定型分析,结果显示,发病猪群共检测到11个血清型,包括SS1、SS2、SS3、SS4、SS7、SS8、SS9、SS16、SS19、SS29和SS31型,主要以SS2、SS3和SS19型为主,分别占16.58%、9.63%和7.49%;其次为SS7型(6.95%)和SS9型(5.34%),未定型菌株占48.66%;健康猪群共检测到17个血清型,包括SS2、SS3、SS4、SS5、SS7、SS8、SS9、SS10、SS12、SS15、SS16、SS17、SS19、SS21、SS23、SS29和SS30型,主要以血清型SS2和SS29型为主,分别占18.83%和14.94%,其次为SS16型(6.50%),未定型菌株占31.82%。
[Abstract]:In order to understand the prevalence of Streptococcus suis SS) in swine herd in Guangdong, In this study, 228 infected pig samples and 698 healthy pig samples (including 455 nasal swabs and 243 slaughterhouse tonsils) collected from Guangdong farms were analyzed for SS carriers. The positive rate of SS in infected pigs was 82.02i / 2280.The positive rate of SS in healthy pigs was 42.20g / 1922 / 4550.The SS positive rate of slaughterhouse slaughtered pigs was 32.101078 / 2430.187 SS strains isolated from diseased pigs and healthy pigs (including pig farms and slaughterhouses) were isolated. The serotype of 154 SS strains were analyzed. The results showed that 11 serotypes were detected in the infected pigs, including SS1, SS2SS2, SS4, SS7, SS9, SS16, SS19, SS29 and SS31, mainly SS2, SS3 and SS19, accounting for 16.589.63% and 7.49% respectively, followed by SS7 (6.9595) and SS9 (5.3434), with untyped strains accounting for 48.66; 17 serotypes were detected in healthy pigs. The main types of SS23 SS29 and SS30 were serotype SS2 and SS29, accounting for 18.83% and 14.94, respectively. The next type was SS16 6.50, and the untyped strain was 31.822.The main types were serotype SS2 and SS29 type, respectively, and the second was SS16 type 6.50, and the untyped strain was 31.822.The main serotypes were serotype SS2 and SS29 type, which accounted for 18.83% and 14.94 respectively, and the second type was SS16 type 6.50, and the untyped strains accounted for 31.822.The main types were serotype SS2 and SS29 type, which accounted for 18.83% and 14.94 respectively.
【作者单位】：广东海大畜牧兽医研究院;
【基金】：农业部行业公益性专项项目(201303041) 国家重点研发计划(2017YFD0501100)
【分类号】：S858.28

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