title: The incidence of Listeria monocytogenes in farm bulk milks in NE Scotland.
abstract: Raw milk samples (c. 20 ml) were taken from approximately 180 farm bulk tanks in the NE of Scotland on 3 occasions over a period from August 1987 to February 1988 and tested for the presence of Listeria monocytogenes. The maximum incidence of L. monocytogenes (3.8%) was found in the August sampling, with incidences of 1.02% and 2.7% in October and February. Direct enrichment of 0.1 ml was negative and only 2 of the total of 14 positives were obtained by direct enrichment using 1.0 ml of milk, the remainder requiring cold enrichment over a period up to 8 weeks. These findings are similar to two recent USA surveys which suggest that is positive milks the number of L. monocytogenes per ml is in the order of 1 organism per ml.
authors.affiliation: North of Scotland College of Agriculture, Aberdeen, UK.
authors.forename: D R
authors.initials: DR
authors.lastname: Fenlon
authors.forename: J
authors.initials: J
authors.lastname: Wilson
mesh_terms: D000818:Animals; D001431:Bacteriological Techniques; D005516:Food Microbiology; D008089:Listeria monocytogenes / Q000302:isolation & purification*; D008892:Milk / Q000382:microbiology*; D012606:Scotland; D012621:Seasons