Impact of commercial preharvest transportation and holding on the prevalence of Salmonella enterica in cull sows

The objective of this study was to examine the prevalence of Salmonella enterica in cull sows at various stages from the farm to the abattoir. Cull sows (n=181) were sampled over 10 weeks. Fecal samples (10 g each) were collected on the farm ca. 24 h before loading and at the live-hog market ca. 3 h...

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Bibliographic Details
Published in:Journal of food protection 2003-07, Vol.66 (7), p.1134-1138
Main Authors: Larsen, S.T, McKean, J.D, Hurd, H.S, Rostagno, M.H, Griffith, R.W, Wesley, I.V
Format: Article
Language:English
Subjects:
Abattoirs
animal handling
animal transport
Animals
bacterial contamination
Biological and medical sciences
cecum
Cecum - microbiology
Colon - microbiology
farms
feces
Feces - microbiology
Female
food contamination
Food industries
Food Microbiology
food pathogens
Fundamental and applied biological sciences. Psychology
Lymph Nodes - microbiology
Meat and meat product industries
microbial detection
pig carcasses
Prevalence
Salmonella enterica
Salmonella enterica - isolation & purification
Salmonella Infections, Animal - epidemiology
Salmonella Infections, Animal - microbiology
Serotyping
slaughterhouses
sows
Swine
Swine Diseases - epidemiology
Swine Diseases - microbiology
swine housing
Time Factors
Transportation
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Summary:The objective of this study was to examine the prevalence of Salmonella enterica in cull sows at various stages from the farm to the abattoir. Cull sows (n=181) were sampled over 10 weeks. Fecal samples (10 g each) were collected on the farm ca. 24 h before loading and at the live-hog market ca. 3 h before loading. Samples (ileocecal lymph nodes, cecal contents, feces from the transverse colon, ventral thoracic lymph nodes, subiliac lymph nodes, sponge swabs of the left and right carcass sections, and chopped meat) were collected at the abattoir. The percentages of positive fecal samples on the farm and at the live-hog market were 3% (5 of 181 samples) and 2% (3 of 181 samples), respectively. After transport from the live-hog market (10 h) and holding at the abattoir (6 h), 41% (74 of 180) of cull sows yielded S. enterica in one or more sampled tissues. The isolation rate for total cecal contents (33%; 60 of 180 samples) was significantly (P
ISSN:0362-028X
1944-9097
DOI:10.4315/0362-028X-66.7.1134