A survey of the incidence of Salmonella species and Enterobacteriaceae in poultry feeds and feed components

Abstract

Between July 1990 and April 1991 the rate of contamination with Salmonella species of poultry feeds and feed components used by the Dutch feed industry was surveyed. Ten per cent of 360, 10 g samples of poultry feeds were found to be contaminated. Mash feeds, mostly used for layer-breeders, were far more frequently (21 per cent) contaminated than pelleted feeds (1.4 per cent). The rate of contamination of 130 samples of fish meal was 31 per cent, of 83 samples of meat and bone meal 4 per cent, 58 samples of tapioca 2 per cent and of 15 samples of maize grits 27 per cent. Twenty-eight serotypes of salmonellae were isolated, but no Salmonella enteritidis was found, despite the occurrence of an epidemic in poultry caused by this serotype since 1987. The serotypes isolated most frequently were not the same as those encountered in poultry flocks. The Enterobacteriaceae isolated from the feedstuffs were predominantly thermotrophic. They were shown to be useful markers of the rate of contamination with salmonellae and of the efficiency of decontamination of the feedstuffs by pelletisation.

Molecular Epidemiology of Nontyphoidal Salmonella in Poultry and Poultry Products in India: Implications for Human Health

“…The incidence of Salmonella in poultry feed and feed ingredients were found to be 9.6 % in this study. The incidence of Salmonella in poultry feed and feed ingredients are known to be highly variable ranging from 0 to 78 % [25,26]. Various factors including source and quality of feed ingredients, storage conditions could contribute to this variation.…”

Study on Isolation and Identification of <i>Salmonella</i> and <i>Escherichia coli</i> from Different Poultry Feeds of Savar Region of Dhaka, Bangladesh

“…The occurrence of Salmonella in poultry feed samples was 2.33% and are comparable to levels of 2% in Egypt and 4.4% in Brazil [17,18]. Six isolates of Salmonella from 37 (16.2%) imported broiler fish meal were recovered [19] and mash feed contains fish and meat and bone meals mostly used for layer breeder were far more frequent 21% and 4% respectively [20] contaminated with Salmonella. Broiler and layer feed is one of the important sources of chicken farm contaminated with Salmonella [21].…”

Salmonella Contamination in Commercial Layer Feed in Japan.

“…The Salmonella isolation rate in this surveillance was not as high as that reported by Cox et al [2], Veldman et al [16] and Davies and Wray [3]. Davies and Wray [3] reported that S. Enteritidis was isolated on one occasion from an intake pit spillage but not from any bagger ones in a feed mill which 26 serovars of Salmonella were frequently isolated.…”

“…Davies and Wray [3] reported that S. Enteritidis was isolated on one occasion from an intake pit spillage but not from any bagger ones in a feed mill which 26 serovars of Salmonella were frequently isolated. Whilst Cox et al [2] or Veldman et al [16] did not S. Enteritidis from any feeds. The Salmonella isolation rate from feed samples seems to relate to that from eggs in this area (unpublished data).…”