Serological and bacteriological evaluation of Salmonella status in swine herds

Šišák, František; Havlíčková, Hana; Matiašovic, Ján; Karpíšková, Renata

doi:10.17221/311/2011-cjfs

Cited by 3 publications

(1 citation statement)

References 20 publications

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“…The amount of faeces, secondary and delayed enrichment, may affect the sensitivity of bacterial culture (Šišak et al, 2011;Funk et al, 2000). In this study, we used 25 g of faeces for faecal sample and applied two enrichment steps in order to increase the sensitivity of the test.…”

Section: Resultsmentioning

confidence: 99%

Estimation of the Salmonella spp. prevalence in pig farms with dry and wet feeding

Stojanac¹,

Stevanevi²,

Stani³

2013

Afr. J. Microbiol. Res.

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Human salmonellosis originating from pork is an important zoonotic disease, and the objective of this study was to determine whether the Salmonella shedding was lower for pigs herds provided wet-feed compared to those on traditional dry rations. Four wet-feeding farms and six dry-feeding farms were selected. Individual faecal and feed samples were collected (faces 30, feed 10 from pigs per farm), and analysed for the presence of Salmonella. The results showed a low level of on-farm Salmonella shedding (overall prevalence from faecal samples 2.0% as well as 1.0% of the feed samples). The overall prevalence was 30% in studied farms (3 out of 10). Two of the dry-feeding farms (33.33%) tested positive compared to only one of the wet-feeding farms (25%). Salmonella was isolated in 5 of 180 faecal samples from farms with dry-feeding, compared to farms with wet-feeding where it was isolated in only one sample out of 120. Salmonella was also recovered from the feed on one dry-feeding farms but were not isolated from the farms using wet-feeding. These findings indicate that farms with wet-feeding are associated with lower (p<0.01) prevalence of Salmonella.

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Section: Resultsmentioning

confidence: 99%

Estimation of the Salmonella spp. prevalence in pig farms with dry and wet feeding

Stojanac¹,

Stevanevi²,

Stani³

2013

Afr. J. Microbiol. Res.

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Meat Juice Serology and Improved Food Chain Information as Control Tools for Pork‐Related Public Health Hazards

Felin

Jukola

Raulo

et al. 2014

Zoonoses and Public Health

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The seroprevalence of Salmonella spp., pathogenic Yersinia spp., Toxoplasma gondii and Trichinella spp. was studied in 1353 finishing pigs from 259 farms that were allocated according to farm types: large fattening farms (≥ 1000 pig places), small fattening farms (< 1000 pig places) and farrow-to-finish farms. The antibodies were analysed with commercial ELISA kits in meat juice samples that were collected at Finnish slaughterhouses. Salmonella antibodies were rare (3% of pigs, 14% of farms) when the cut-off optical density (OD) value 0.2 was used. Antibodies to pathogenic Yersinia spp. and T. gondii were detected in 57% of pigs and 85% of farms (OD ≥ 0.3) and in 3% of pigs and 9% of farms (OD ≥ 0.15), respectively. No antibodies to Trichinella spp. were detected (OD ≥ 0.3). The European Food Safety Authority (EFSA) considers Salmonella spp., Yersinia enterocolitica, T. gondii and Trichinella spp. as the most relevant biological hazards in the context of meat inspection of pigs. The seroprevalence of these important zoonotic pathogens was low in Finland, except that of Yersinia. The seroprevalence of Toxoplasma was significantly higher in pigs originating from small-scale fattening farms (P < 0.05). Strong positive correlation was observed at the animal level between Salmonella and Yersinia seropositivity and between Salmonella and Toxoplasma seropositivity (P < 0.05). We suggest that these results reflect the level and importance of biosecurity measures applied on the farms. Meat juice serology at slaughter is a useful tool for targeting measures to control these pathogens. The information obtained from analyses should be used as part of the food chain information (FCI).

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Comparison seroprevalence of Salmonella spp. in large farms and individual producers in Serbia

Stojanac

Stevančević

Savić³

et al. 2014

BIOTEC ANIM HUSB

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Salmonella is one of the most frequently reported food-borne (alimentary) infections in the world. The study objective was to evaluate seroprevalence of Salmonella spp. in the farrow-to-finish farms and individual producers. Examined fattened pigs were divided into two groups: the first group was comprised of fatteners from 4 large farms in northern Serbia, and fatteners from the other group originating from individual producers from northern Serbia and the region of eastern Serbia. Individual blood serum samples were collected from 100 pigs per farrow-to-finish farms and 300 fattening pigs from individual producers and analysed for the presence of Salmonella antibodies. A blood serum sample from each pig was frozen, and blood serum was examined for specific antibodies against Salmonella spp. using an indirect ELISA. Salmonella seroprevalence ranging from 0% to 56% was found in 4 farrow-to-finish farms. Seroprevalence of 79% was found in individual producers (300 blood serum samples). This study shows that the results of serological tests for Salmonella were different (p<0.01) for slaughtered pigs from farms and from individual producers. Pig production in Serbia is under better supervision on large farrow-to-finish farms than in the individual sector. This study is an introduction to reducing of public health risks associated with Salmonella in pork.

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Serological and bacteriological evaluation of Salmonella status in swine herds

Cited by 3 publications

References 20 publications

Estimation of the Salmonella spp. prevalence in pig farms with dry and wet feeding

Estimation of the Salmonella spp. prevalence in pig farms with dry and wet feeding

Meat Juice Serology and Improved Food Chain Information as Control Tools for Pork‐Related Public Health Hazards

Comparison seroprevalence of Salmonella spp. in large farms and individual producers in Serbia

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