The Occurrence of Salmonellae in Slaughtered Pigs

Chung, Gyung Tae; Frost, A. J.

doi:10.1111/j.1751-0813.1969.tb06607.x

Cited by 10 publications

(5 citation statements)

References 14 publications

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“…This serotype has been isolated from domestic livestock, including calves, pigs and horses in Australia (Chung and Frost, 1969;Bucknell et al, 1997;Izzo et al, 2011). However, in contrast to Bensink et al (1991), we did not detect Salmonella Typhimurium.…”

Section: Discussioncontrasting

confidence: 75%

Salmonella infection in a remote, isolated wild pig population

Ward

Cowled

Galea

et al. 2013

Veterinary Microbiology

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Section: Discussioncontrasting

confidence: 75%

Salmonella infection in a remote, isolated wild pig population

Ward

Cowled

Galea

et al. 2013

Veterinary Microbiology

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“…In Australia, this study has shown that between 140 and 200 per 10, 000 normal submaxillary lymph nodes are similarly contaminated. The recovery of Salmonella species along the gut is also consistent between countries and over time, ranging between 2 and 17 per cent (Chung and Frost 1969, Riley 1970, Katsube and others 1973, Bobbit and others 1997).…”

Section: Discussionmentioning

confidence: 88%

Risk assessment of organoleptic postmortem inspection procedures for pigs

Pointon

Hamilton²,

Kolega

et al. 2000

Veterinary Record

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A systematic quantification of foodborne hazards in abnormal and normal tissues of pig carcases was undertaken to provide a risk-based assessment of the effectiveness of traditional organoleptic meat inspection. A total of 36,059 pigs, representing all major pig-producing areas and systems in Australia, were inspected on a seasonal basis at three abattoirs over 12 months. The prevalence of grossly detectable abnormalities of possible food-borne disease significance was recorded. A subset of the grossly detectable abnormalities, together with tissues classified by inspection as normal (controls) were submitted for the detection of a broad range of food-borne hazards. The potential exposure of consumers to hazards in fresh pork was characterised as the number of carcases per 10,000 containing hazards in selected tissues. The results indicated that the level of exposure of consumers to microbiological hazards in fresh pork is unlikely to be reduced significantly by the detection and removal of gross abnormalities in the tissues examined. On the basis of carcase throughput, the rate of contamination of normal lymph nodes was commonly 100 times higher, and no hazards were isolated from two types of grossly abnormal nodes. While further processing, cooking and handling may alter the exposure characterisation, the study nevertheless identifies the proportional contribution of abnormal and normal tissues to risks to consumers and clearly identifies the need for consideration of 'visual only' inspection in the re-evaluation of traditional inspection procedures.

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“…Kampelmacher and co-workers (1961) found 25.3% of 2100 pigs infected, and in 1967 found 31.0% of 700 pigs infected (Edel and Kampelmacher 1970). Chung and Frost (1969) isolated salmonellae from the mesenteric nodes of 8 of 50 pigs in south-eastern Queensland. None of these reports give any indication of the approximate number of organisms present and accordingly, it is difficult to assess their significance as a reservoir of infection for spread to other sites and ultimately to meat or meat products.…”

Section: Dlscussionmentioning

confidence: 98%

The Isolation of Salmonella From Jejunal and Caecal Lymph Nodes of Slaughtered Animals

et al. 1980

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One jejunal and one caecal lymph node were sampled from each of 50 cows, 40 yearling cattle, 25 sheep, 20 lambs and 45 pigs after slaughter. Salmonella, Clostridium perfringens and Staphylococcus aureus, all organisms which cause food poisoning in man, were sought by direct plating methods. The samples were also enriched and cultured for Salmonella. Organisms were cultured from 208 (58%) of the 360 lymph nodes; aerobic plate counts yielded up to 25,000 organisms per gram of tissue, although from most infected samples less than 1000 organisms per gram were cultured. Salmonella was isolated directly from 5% of samples, with counts up to 1,500 per gram. After enrichment Salmonella was isolated from nodes taken from 15 cows, 2 yearling cattle, one sheep and 8 pigs. Cl. perfringens was isolated from the caecal nodes of 2 yearling cattle and 2 pigs; S. aureus was not isolated from any sample. It was concluded that mesenteric lymph nodes may be a significant reservoir of Salmonella for transfer to meat and meat products.

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The Occurrence of Salmonellae in Slaughtered Pigs

Cited by 10 publications

References 14 publications

Salmonella infection in a remote, isolated wild pig population

Salmonella infection in a remote, isolated wild pig population

Risk assessment of organoleptic postmortem inspection procedures for pigs

The Isolation of Salmonella From Jejunal and Caecal Lymph Nodes of Slaughtered Animals

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