Pooled faecal samples compared with individual samples for detection of Salmonella in cattle

Authors

  • Sirkka-Liisa Kivela National Veterinary and Food Research Institute, P.O.Box 368, FIN-00231 Helsinki, Finland
  • Olli Ruoho The Association for Animal Disease Control, P.O.Box 221, FIN-60101 Seinajoki, Finland
  • Eija Seun National Veterinary and Food Research Institute, P.O.Box 368, FIN-00231 Helsinki, Finland
  • Eeva-Liisa Hintikka National Veterinary and Food Research Institute, P.O.Box 368, FIN-00231 Helsinki, Finland

DOI:

https://doi.org/10.21423/bovine-vol33no1p74-75

Keywords:

bacterial diseases, diagnosis, faeces

Abstract

The modified ISO 6579:1993 method was used to examine in parallel the presence of Salmonella in 4579 individual faecal samples and 210 pooled samples from 130 herds of cattle. 25 clinically or subclinically S. infantis-infected herds were detected. Positive herds were examined once a month for 7 months. 112 pooled samples and individual samples, respectively, were negative. 88 pooled samples were Salmonella-positive. Ten negative pooled samples contained faeces from animals which were found to be Salmonella-positive in individual sampling. Nine of these false negative pooled samples contained faeces from more than 20 animals and all contained relatively few Salmonella-positive animals. These results indicated that Salmonella was reliably detected in pooled faecal samples of a maximum of 20 animals (Kappa test 0.98).
Cover image of Volume 33, No.1 of the Bovine Practitioner, which depicts four different types of bovine practice under the banner "The Journal for All Bovine Practitioners": a photo from a dairy farm provided by Dr. Jim Jarrett of Rome, GA; a photo of a cow-calf practice provided by Dr. Larry Rice of San Antonio, TX; a stocker photo provided by Dr. Bob Smith of Stillwater, OK; and a feedlot photo provided by Mike Hunter of Texas County Feedyard, Guymon, OK

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Published

1999-01-01

How to Cite

Kivela, S.-L., Ruoho, O., Seun, E., & Hintikka, E.-L. (1999). Pooled faecal samples compared with individual samples for detection of Salmonella in cattle. The Bovine Practitioner, 33(1), 74–75. https://doi.org/10.21423/bovine-vol33no1p74-75

Issue

Vol. 33, No. 1 (1999 January)

Section

Articles