Nationwide Surveillance of salmonella in the Faeces of Pigs in Japan

Kishima, Masato; Uchida, Ikuo; Namimatsu, Takanori; Osumi, Takayuki; Takahashi, Sayaka; Tanaka, Kiyoshi; Aoki, Hiroshi; Matsuura, Katsuyoshi; Yamamoto, Koshi

doi:10.1111/j.1863-2378.2007.01105.x

Cited by 15 publications

(16 citation statements)

References 35 publications

(36 reference statements)

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“…A number of studies have reported similar high Salmonella prevalence in farm animals usually slaughtered for food. Kishima et al [14] reported the isolation of 172 strains of Salmonella from 218 pig farms in Japan. In Australia, Duffy et al [15] reported 46.3% Salmonella species isolation from the faeces of goat.…”

Section: Discussionmentioning

confidence: 99%

Antimicrobial Resistance Profile of Salmonella Isolates from Livestock

Umeh¹,

Enwuru²

2014

OJMM

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Food animals are important reservoirs of infectious pathogens. The use of antimicrobial drugs in food animals is a major source of selection of drug resistant pathogens. This study investigated a total of 1000 faecal samples of livestock and poultry between January 2012 and March 2013 to determine the prevalence rate of Salmonella species and their antimicrobial resistance profiles. Faecal samples of chicken, pig, cattle, goat and sheep (200 samples of each) were pre-enriched in Tetrathionate broth and Rappapport Vassiliadis R10 broth. The broth culture was subcultured on XLD agar and incubated. The isolates were identified by standard biochemical tests and confirmed by AP1 20E test kit. Antimicrobial susceptibility was performed by disk diffusion method. The result showed that the prevalence of Salmonella spp. in all the samples was 21.8%. Chicken faeces had the highest prevalence rate of 52.5% followed by pig faeces (40%), cattle (10%), goat (4.5%) and sheep (2%). The isolates have resistance profile ranging from 1 to 9 antimicrobial drugs. Tetracycline had the highest resistance (81%) of all the isolates followed by Streptomycin (68%). Gentamycin had the lowest resistance profile of 14%. We conclude that Salmonella species have high prevalence rate in chicken and pig, but less in cattle, goat and sheep, and that most of the isolates are resistant to most commonly used antibiotics. Effort is needed to adopt measures to control the spread of multidrug resistant pathogens to humans. Care must be taken in the use of antibiotics in farm animals to reduce the selection of multidrug resistant strains.

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Section: Discussionmentioning

confidence: 99%

Antimicrobial Resistance Profile of Salmonella Isolates from Livestock

Umeh¹,

Enwuru²

2014

OJMM

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“…At a Japanese pig farm, S. Typhimurium infection has been shown to cause both clinical and subclinical cases [3,14]. The effect of dietary lactic acid in controlling clinical S. Typhimurium infections under experimental infection conditions have not been demonstrated either.…”

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The Effect of Feeding Lactic Acid to Salmonella Typhimurium Experimentally Infected Swine

Tanaka

Imai

Kumagae

et al. 2010

The Journal of Veterinary Medical Science

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ABSTRACT. Antimicrobial resistant Salmonella are becoming more prevalent. Therefore, alternative methods to control swine Salmonella infection must be explored. We examined whether feeding lactic acid to swine is an effective way to control clinical and subclinical Salmonella Typhimurium infection in these animals. In this experiment, swine were inoculated with 5.6  10 7 CFU (hi-ST) or 5.6  10 5 CFU (lo-ST) of S. Typhimurium per swine to reproduce clinical and subclinical infection. The swine were either fed a commercial feed supplemented with 2.8% lactic acid (LA) or the commercial feed without supplementation (C) to examine the effect of feeding lactic acid. Twenty 21 and 22 days old swine were divided into 4 groups, LA-hiST, C-hiST, LA-loST and C-loST, and fed the respective feed. They were inoculated S. Typhimurium at 51 and 52 days old. Clinical symptoms and the number of S. Typhimurium shed in feces were evaluated. The LA-hiST group did not show obvious clinical symptoms, such as diarrhea or febrile response, but the C-hiST group did show clinical symptoms. The number of S. Typhimurium shed in the feces of the LA-hiST group was lower than in that of the ChiST group, and that of the LA-loST group was lower than that of the C-loST group. Our data suggest that dietary supplementation with 2.8% lactic acid can be an effective way to control clinical and subclinical infections of S. Typhimurium in swine.

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“…The incidences of Salmonella spp. detected from swine fecal samples in the USA and Japan were only 4.9% and 3.1%, respectively (Bahnson et al, 2006;Kishima et al, 2008). In one Korean study, Salmonella incidence was reported at 9.5% from fecal samples (Kim et al, 2001).…”

Section: Discussionmentioning

confidence: 99%