Article Text

other Versions

PDF
Presence of Clostridium botulinum and botulinum toxin in milk and udder tissue of dairy cows with suspected botulism
  1. H. Böhnel, Dr.med.vet., Dr.sc.agr. and
  2. F. Gessler, Dr.med.vet.
  1. Department of Microbiology, Miprolab mikrobiologische Diagnostik GmbH, Marie-Curie-Str. 7, Göttingen 37079, Germany
  1. E-mail for correspondence: info{at}miprolab.com

Abstract

Clostridium botulinum is an anaerobic spore-forming bacterium prevalent in the environment, and causes botulism in man and animals via toxins. Dairy cattle may be contaminated or infected by feed, water or other environmental factors. Milk may also carry the pathogen. Hence, milk and udder samples need to be tested. The number of clinical cases of bovine botulism in Germany has been increasing since the mid-1990s. Besides routine samples, additional 99 milk samples from 37 farms, and 51 udder samples from 51 farms from sick animals presumably affected by botulism were tested microbiologically by the mouse bioassay. Milk from three farms (8.1 per cent) contained botulinum toxin, and from two (5.4 per cent) bacterial states of C botulinum. Ten udder samples (19.6 per cent) contained toxin, and 7 (13.7 per cent) bacterial forms, including one case where both toxin and bacteria were found. The findings are discussed. Positive milk samples containing botulinum toxin or bacteria raise concern of food safety for the human consumer. Pathological udder samples may show either infection prior to, or contamination after death.

  • Milk
  • Botulism
  • Bacteriology
  • Accepted January 14, 2013.

Statistics from Altmetric.com

  • Accepted January 14, 2013.
View Full Text

Request permissions

If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.