Incidence of Listeria spp. in Dairy Cows Feed and Raw Milk in LatviaReportar como inadecuado

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ISRN Veterinary ScienceVolume 2012 2012, Article ID 435187, 5 pages

Research Article Scientific Institute of Biotechnology and Veterinary Medicine SIGRA, Latvia University of Agriculture, Instituta street No. 1, 2150 Sigulda, Latvia

Received 24 November 2011; Accepted 2 January 2012

Academic Editor: A. Unver

Copyright © 2012 I. H. Konosonoka et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Feed is a risk factor for poisoning the farm environment thus also fresh milk with pathogenic microorganisms of Listeria genus species. Listeria ivanovii, Listeria innocua, and Listeria seeligeri were isolated from 9.2%, but Listeria monocytogenes from 20.0% of feed samples. Most often different fodders 9.3% and silage 4.7% were contaminated with Listeria monocytogenes. Listeria genus species were isolated more often from feed prepared and used in organic dairy farm than from that used in conventional dairy farm, correspondingly 44.4% and 18.3%. No Listeria monocytogenes was found in bulk milk samples of organic dairy farm.

Autor: I. H. Konosonoka, A. Jemeljanovs, B. Osmane, D. Ikauniece, and G. Gulbe



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