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| Registros recuperados: 18 | |
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| Jensen, Annette Nygaard; Nielsen, Eva Møller. |
| A colony blot hybridization method with a digoxigenin-(DIG)labelled nucleotide probe was developed to enable Campylobacter jejuni species-specific identification of colonies present in minority. C. jejuni is the dominant cause of human cases of Campylobacteriosis. In contrast, C. coli is normally dominant in conventional pigs but it can be speculated that outdoor pigs host more C. jejuni due to a closer contact to the environment and wild-life where C. jejuni is pre-dominant. Since C. jejuni is considered more virulent to humans a potential shift towards C. jejuni in pigs may infer an importance to food safety. Individual pigs are often colonized with several Campylobacter strains. However, with conventional culturing techniques only few colonies are... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Food security; Food quality and human health Pigs. |
| Ano: 2003 |
URL: http://orgprints.org/1719/1/Jensen2003_Campylobacter_SafePork.doc |
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| Jensen, Annette Nygaard; Baggesen, Dorte Lau. |
| Pigs inoculated with Salmonella Typhimurium were grouped with non-infected tracerpigs to determine the transmission of salmonella between organic outdoor animals. The results indicated that the organic pigs were perceptive to infections but that the susceptibility varied considerably between pigs. Bacteriological examinations of soil and water samples from the pasture environment showed the ability of salmonella to survive in the non-host environment, and under some favoruable conditions pose an infection risk for new pigs introduced onto the contaminated pastures. |
| Tipo: Journal paper |
Palavras-chave: Pigs. |
| Ano: 2004 |
URL: http://orgprints.org/4269/1/4269.PDF |
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| Jensen, Annette Nygaard; Storm, Christina; Forslund, Anita; Baggesen, Dorte Lau; Dalsgaard, Anders. |
| In recent years, an increasing number of disease outbreaks have been associated with consumption of contaminated vegetables. Thus, it has been speculated to what extent such contamination is associated with application of animal manure as fertilizer, which is particularly practiced in organic vegetable production where conventional fertilizers are prohibited. A field survey was therefore performed aiming to assess the survival and transfer of E. coli from animal manure to lettuces, with E. coli serving as an indicator of bacterial enteric pathogens. Animal manure was applied to 3 Danish fields prior to planting of lettuce seedlings, then 5-8 weeks later at the normal time of harvest, inner and outer leafs of 10 lettuce heads were pooled into one sample... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Food security; Food quality and human health. |
| Ano: 2010 |
URL: http://orgprints.org/20941/1/20941.pdf |
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| Jensen, Annette Nygaard; Baggesen, Dorte Lau. |
| There is only limited data available on the prevalence of zoonotic bacteria like Salmonella and Campylobacter specifically in organic pigs, but the increased exposure to these pathogens in the outdoor environment may influence the food safety of organic pork. However, the late weaning, low stocking density and roughage may help to increase the resistance to bacterial infections in organically reared pigs. Outdoor organic pigs were inoculated with Salmonella and mixed with Salmonella-free pigs to study the transmission between pigs. Following, the infection risk associated with the use of Salmonella-contaminated pastures was assessed by introducing new Salmonella-free pigs into the contaminated paddocks. Campylobacter is considered a natural part of... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Food security; Food quality and human health Pigs. |
| Ano: 2006 |
URL: http://orgprints.org/9159/1/9159.doc |
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| Jensen, Annette Nygaard. |
| Forsøg har vist at Salmonella bakterier kan overføres fra smittede økogrise til salmonella-frie grise holdt på udendørs arealer. Desuden kan salmonella bakterier overleve i foldmiljøet og under visse betingelser smitte salmonella-frie grise, som senere indsættes i folden. |
| Tipo: Other |
Palavras-chave: Pigs. |
| Ano: 2004 |
URL: http://orgprints.org/3924/1/3924.doc |
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| Jensen, Annette Nygaard; Mejer, Helena; Mølbak, Lars; Langkjær, Maria; Jensen, Tim Kaare; Angen, Øystein; Martinussen, Torben; Klitgaard, Kirstine; Baggesen, Dorte Lau; Thamsborg, Stig Milan; Roepstorff, Allan. |
| The restrictions on the use of antibiotic and anthelmintic treatments in organic pig farming necessitate alternative non-medical control strategies. Therefore, the antibiotic and parasite-reducing effect of a fructan-rich (prebiotic) diet of dried chicory was investigated in free-ranging piglets. Approximately half of 67 piglets from 9 litters were experimentally infected with Ascaris suum and Trichuris suis in the suckling period (1 to 7 weeks of age) and 58 of the piglets were challenged daily with E. coli O138:F8 for 9 days after weaning to induce weaning diarrhoea. The litters were fed either chicory (30% DM) or a control diet. The effect of chicory on intestinal helminths, intestinal microbiota, especially Bifidobacteria and Campylobacter spp., and E.... |
| Tipo: Journal paper |
Palavras-chave: Health and welfare. |
| Ano: 2010 |
URL: http://orgprints.org/18118/1/18118.pdf |
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| Aabo, Søren; Jensen, Annette Nygaard. |
| Can the restricted use of antibiotics in organic pig farming be documented to provide a safer, high quality meat product with less antibiotic resistant bacteria? The project SafeOrganic aims to document that the restricted use of antimicrobials in organic pig production leads to lower levels of antibiotic resistant bacteria compared with the level in conventional pigs. However, the project will also address the risk of losing this quality parameter, due to a widespread practice of slaughtering organic pigs together with conventional pigs,implying a risk of cross-contamination. |
| Tipo: Newspaper or magazine article |
Palavras-chave: Food security; Food quality and human health Pigs. |
| Ano: 2013 |
URL: http://orgprints.org/22541/13/22541.pdf |
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| Jensen, Annette Nygaard; Baggesen, Dorte Lau. |
| Organic pig production provides an animal-friendly alternative to conventional production systems, but one of the concerns associated with the outdoor production form is an increased exposure to Salmonella and Campylobacter in the environment that potentially impairs the food safety of organic pork. The available data on Salmonella infections in organic pigs is scarce, but seroprevalence has indicated a higher occurrence of Salmonella in outdoor pigs. The potential beneficial effects of e.g. late weaning, low animal density and roughage with respect to resistance to Salmonella infections are discussed on basis of an experimental infection study. The persistence of Salmonella in a contaminated paddock environment constitutes a potential infection risk for... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Food security; Food quality and human health Pigs. |
| Ano: 2006 |
URL: http://orgprints.org/7502/3/Nygard_salmonella_revised.doc |
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| Jensen, Annette Nygaard; Mølbak, Lars; Hansen, Laurits Lydehøj; Baggesen, Dorte Lau. |
| Prebiotics are non-digestible oligosaccharides acting by stimulating the growth of bacteria being beneficial for the gastrointestinal health of the host and may serve as a means to control pathogens. This study aimed to assess if inclusion of chicory or lupins (prebiotics) in the diet of pre-slaughter pigs for just 1 or 2 weeks could change the composition of their intestinal microbiota and help to lower the level of the important foodborne pathogen Campylobacter spp. The study showed that even a short-term alternative feeding strategy with prebiotics in the diet of pre-slaughter pigs elicited changes in the composition of intestinal microbiota with stimulation of the growth of bifidobacteria in caceum and a reduction of the Campylobacter spp. excretion... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Feeding and growth; Health and welfare. |
| Ano: 2010 |
URL: http://orgprints.org/19883/9/19883.pdf |
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| Jensen, Annette Nygaard; Baggesen, Dorte Lau. |
| For organic pig production little information is available about potential food safety problems with respect to zoonotic bacteria like salmonella. The aim of the current study was to examine the salmonella infection dynamics in organic pigs through an outdoor experimental set-up. Pigs inoculated with Salmonella Typhimurium were grouped with non-infected tracerpigs to determine the transmission of salmonella between animals. The results indicated that the organic pigs were perceptive to infections but that the susceptibility varied considerably between pigs. Furthermore, bacteriological examinations of soil and water samples from the pasture environment showed the ability of salmonella to survive in the non-host environment. Moreover, introduction of... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Food security; Food quality and human health Pigs. |
| Ano: 2005 |
URL: http://orgprints.org/5965/1/5965.pdf |
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| Jensen, Annette Nygaard; Storm, Christina; Forslund, Anita; Baggesen, Dorte Lau; Dalsgaard, Anders. |
| A pilot study was conducted to assess the transfer of Escherichia coli from animal slurry fertilizer to lettuce, with E. coli serving as an indicator of fecal contamination and as an indicator for potential bacterial enteric pathogens. Animal slurry was applied as fertilizer to three Danish agricultural fields prior to the planting of lettuce seedlings. At harvest, leaves (25 g) of 10 lettuce heads were pooled into one sample unit (n ~ 147). Soil samples (100 g) were collected from one field before slurry application and four times during the growth period (n ~ 75). E. coli was enumerated in slurry, soil, and lettuce on 3M Petrifilm Select E. coli Count Plates containing 16 mg/liter streptomycin, 16 mg/liter ampicillin, or no antimicrobial agent. Selected... |
| Tipo: Journal paper |
Palavras-chave: Food security; Food quality and human health Composting and manuring Crop husbandry Crop health; Quality; Protection. |
| Ano: 2013 |
URL: http://orgprints.org/23106/7/23106.pdf |
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| Registros recuperados: 18 | |
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