摘要
为调查回肠炎在华东地区三省一市规模化猪场的感染状态,本研究利用商品化的胞内劳森氏菌快速检测试剂盒Lawsonia FirsttestTM对来自21个规模化猪场采集的321份粪便样品进行胞内劳森氏菌检测。经检测21个规模化猪场100%存在回肠炎感染,而且感染率随着猪只日龄增长而逐渐升高。4周龄仔猪即存在感染,感染率为9.1%,8周龄(41.5%)～10周龄(67.9%)为主要感染开始期,12周龄(94.3%)～14周龄(87.9%)为感染高峰期,所检测样品的总体阳性率为59.81%,强阳性率为31.2%,结果表明,华东地区规模化猪场普遍存在亚临床型回肠炎感染。
The epidemiological survey of porcine ileitis on intensive swine farms in East China was carried out by using commercialized Lawsonia intracellularis test kit （Lawsonia FIRSTtest^TM）. A total of 321 fecal samples from pigs with different weeks-old were collected for detection of L.intracellularis. The results showed that L.intracellulads infection was 100% on the 21 intensive swine farms. The positive rate of the pig infection was increased as the pigs growing. The earliest positive samples were detected from 4 week-old piglets with 9.1% positive. Onset of ileitis in pigs on most of the farms was between 8 weeks old with 41.5% positive to 10 weeks old with 67.9% positive. Pigs with the highest positive rate of ileitis were during 12 weeks old （94.3%） to 14 weeks old （87.9%）. The total positive percentage of the 321 samples was 59.81% including 31.2% strong positive. The results indicated that pigs were mainly displayed the subclinical signs of ileitis on intensive swine farms in East China. However, the detection results could be influenced intensively by medication interfering.
出处
《中国预防兽医学报》
CAS
CSCD
北大核心
2012年第11期873-877,共5页
Chinese Journal of Preventive Veterinary Medicine
