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Registros recuperados: 15
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Spread of salmonella in organic pigs Organic Eprints
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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Salmonella infection risk associated with outdoor organic pig production Organic Eprints
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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Salmonella infection risk associated with outdoor organic pig production Organic Eprints
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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Salmonella and Campylobacter infections in outdoor organic pigs Organic Eprints
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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Reducing the risk of food borne pathogens (Campylobacter) in pre-slaughter piges vis short-time feeding with prebiotics Organic Eprints
Jensen, Annette Nygaard; Hansen, Laurits Lydehøj; Baggesen, Dorte Lau.
Pigs constitute a natural reservoir of Campylobacter spp., which implies a food safety concern. A potential means to control pathogens is inclusion of non-digestible oligosaccharides (prebiotics) in the diet. Prebiotics act by stimulating the growth of fermenting bacteria beneficial for the gastrointestinal health of the host. This study aimed to assess a possible Campylobacter spp. reducing effect of feeding pigs with lupin and chicory just prior to slaughter. The short-term inclusion of lupin in pigs’ diet prior to slaughter reduced the excretion level of naturally occurring Campylobacter. This indicates a lower risk of carcass contamination at slaughter and then a lower infection risk associated with consumption of pork.
Tipo: Conference paper, poster, etc. Palavras-chave: Health and welfare.
Ano: 2008 URL: http://orgprints.org/18117/1/ANJ_Abstract_final_FoodMicro2008_Organic_Eprint.pdf
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Effects of feeding prebiotics to pigs for 1 or 2 weeks before slaughter Organic Eprints
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: Health and welfare.
Ano: 2010 URL: http://orgprints.org/18115/3/Bifido_TRFLP_Camp_Food_Micro_2010_Organic_Eprint.pdf
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The effect of a diet with fructan-rich chicory roots on intestinal helminths and microbiota with special focus on Bifidobacteria and Campylobacter in piglets around weaning Organic Eprints
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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Effects of feeding prebiotics to pigs for 1 or 2 weeks before slaughter Organic Eprints
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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Faecal contamination of lettuce heads after manure application Organic Eprints
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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Contamination of lettuce with antibiotic resistant E. coli after slurry application Organic Eprints
Jensen, Annette Nygaard; Storm, Christina; Baggesen, Dorte Lau; Forslund, Anita; Dalsgaard, Anders.
Due to disease outbreaks associated with contaminated vegetables it has been speculated to what extent this may be linked 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 to assess the survival and transfer of antibiotic-resistant E. coli from animal manure to lettuces, with E. coli serving as an indicator of bacterial enteric pathogens.
Tipo: Conference paper, poster, etc. Palavras-chave: Food security; Food quality and human health Crop husbandry Farm nutrient management.
Ano: 2011 URL: http://orgprints.org/20418/3/20418.pdf
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Smitstoffer fra det ydre rum Organic Eprints
Dalsgaard, Anders; Jensen, Annette Nygaard; Baggesen, Dorte Lau.
Det ydre miljø er en vigtig kilde til smitstoffer i udendørs grise og økologiske grøntsager. Det viser resultater fra to forskningsprojekter på området.
Tipo: Newspaper or magazine article Palavras-chave: Food security; Food quality and human health Vegetables.
Ano: 2011 URL: http://orgprints.org/20312/13/20312.pdf
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Lupin og cikorie gavner tarmsundhed hos slagtesvin Organic Eprints
Jensen, Annette Nygaard; Mølbak, Lars; Baggesen, Dorte Lau.
Fedding of finisher pigs with lupine (prebiotic) for just one week prior to slaughter helped to lower the excretion of the important human pathogen Campylobacter spp. However, the timing (lenght of feeding) seemed to be important in relation to the obtained effect.
Tipo: Newspaper or magazine article Palavras-chave: Food security; Food quality and human health Animal husbandry Feeding and growth Health and welfare Pigs.
Ano: 2011 URL: http://orgprints.org/18447/1/18447.pdf
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Effects of feeding finisher pigs with chicory or lupine feed for one or two weeks prior to slaughter with respect to levels of Bifidobacteria and Campylobacter Organic Eprints
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 prevent pathogens. This study aimed to assess if inclusion of chicory or lupines (prebiotics) in the diet of pre-slaughter pigs for just 1 or 2 weeks could change the composition of their intestinal microbiota, stimulate the growth of bifidobacteria and help to lower the level of the important foodborne pathogen Campylobacter spp. A total of 48 pigs of initial 90 kg live weight were fed with either a lupine (organic concentrate with 25% blue lupine seed), chicory (organic concentrate with 10% dried chicory roots) or control (100% organic concentrate) diet for 1 week (24 pigs)...
Tipo: Journal paper Palavras-chave: Food security; Food quality and human health Animal husbandry Feeding and growth Health and welfare Pigs.
Ano: 2012 URL: http://orgprints.org/18448/7/18448.pdf
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Escherichia coli Contamination of Lettuce Grown in Soils Amended with Animal Slurry Organic Eprints
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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Contribution of organic farming to public goods in Denmark Organic Eprints
Jespersen, Lizzie Melby; Baggesen, Dorte Lau; Fog, Erik; Halsnæs, Kirsten; Hermansen, J.E.; Andreasen, Lise; Strandberg, Beate; Halberg, Niels.
The potential contribution of organic farming to the public goods, ‘Nature and Biodiversity’, ‘Environment’, ‘Energy and Climate’, ‘Human Health and Welfare’ and ‘Animal Health and Welfare’ in Denmark is guided and partly secured by the principles and specific requirements of the EU Organic Regulation. However, other factors, such as the production type, farm size, geographical location and—not the least—the management of the farm, also influence the contribution. Using the ban on synthetic pesticides and restricted use of antibiotics, including the requirements to compensate for and prevent such uses in organic farming, as examples, the positive and negative contributions of organic farming in relation to selected public goods were analysed. The...
Tipo: Journal paper Palavras-chave: Farming Systems Food security; Food quality and human health Research communication and quality Health and welfare Biodiversity and ecosystem services.
Ano: 2017 URL: http://orgprints.org/32338/1/10.1007_s13165-017-0193-7.pdf
Registros recuperados: 15
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