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| Registros recuperados: 53 | |
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| Mejer, Helena; Roepstorff, Allan; Thamsborg, Stig Milan; Lydehøj Hansen, Laurits; Bach Knudsen, Knud Erik. |
| Two similar trials were carried out to examine how dietary inclusion of an easily fermentable carbohydrate source such as chicory roots (Cichorium intybus) may effect established and establishing helminth infections in pigs. In the first trial varying feeding periods with crude chicory roots naturally rich in fructans (primarily inulin) were tested whereas crude chicory roots were compared with dried chicory roots and purified inulin in the second trial. In both trials pigs were infected with 3000 O. dentatum L3-larvae while fed a traditional standard diet. When the infections were well established and patent, experimental diets were introduced and the faecal egg counts monitored. Two weeks before the pigs were slaughtered all animals were infected with... |
| Tipo: Journal paper |
Palavras-chave: Pigs; Health and welfare. |
| Ano: 2005 |
URL: http://orgprints.org/4523/1/4523.pdf |
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| Mejer, Helena; Roepstorff, Allan. |
| SUMMARY Transmission of Oesophagostomum dentatum and Trichuris suis was studied in outdoor reared pigs. Six farrowing paddocks were naturally contaminated in May to mid June 2001 by experimentally infected seeder pigs. Early July, 1 sow farrowed on each paddock and starting week 3 post partum (p.p.) the offspring was slaughtered serially every 2 weeks for recovery of O. dentatum and T. suis. Faeces was collected regularly for parasite egg counts and acid-insoluble ash (AIA) content as an indicator for geophagy. Weaning took place week 7 p.p. by removing the sow. Paddock infection levels were estimated in mid June (O. dentatum) and late November (O. dentatum and T. suis) using helminth naïve tracer pigs. Soil and vegetation samples were collected... |
| Tipo: Journal paper |
Palavras-chave: Health and welfare. |
| Ano: 2006 |
URL: http://orgprints.org/9366/1/9366.pdf |
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| Andrasen, Annette; Sengupta, Mita Eva; Skovgaard, Kerstin; Jensen , Bent Borg; Thamsborg, Stig MIlan; Kringel, Helene; Petersen, Heidi Huus; Mejer, Helena. |
| It has been shown that carbohydrates that are resistant to digestion in the small intestine but fermentable in the caecum and colon (prebiotics) may be adverse to Oesophagostomum detatum establishment in pigs and have a severe negative effect on egg production. However, there is some evidence that O.dentatum may adapt to the presence of chicory in the feed over time, and is Thus very relevant to examine the long-term effect on the parasite. |
| Tipo: Journal paper |
Palavras-chave: "Organics" in general; Feeding and growth; Health and welfare. |
| Ano: 2015 |
URL: http://orgprints.org/28658/3/28658.pdf |
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| Mejer, Helena. |
| Spolorm er en parasit, der lever i tarmkanalen og er udbredt i alle egne af verdenen, hvor der holdes grise. Uheldigvis tilgodeser dele af den økologiske produktionsform ikke blot grisene men også parasitterne. Et igangværnde tre-årigt projekt (PAROL) under Organic RDD arbejder derfor på at kortlægge smitten i fem danske besætninger, for at forbedre rådgivningen omkring kontrollen af spolorm. |
| Tipo: Newspaper or magazine article |
Palavras-chave: Health and welfare. |
| Ano: 2013 |
URL: http://orgprints.org/24753/18/24753.pdf |
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| Spoolder, Hans; Biavati, Bruno; Borgsteede, Fred; Davies, David; Klocke, Peter; Maurer, Veronika; Nagel, Philip; Nicholas, Phillipa; van Krimpen, Marinus; Mejer, Helena; Modesto, Monica; Strozzi, Gian Paolo; Thamsborg, Stig Milan; Vermeer, Herman; Wagenaar, Jan-Paul; Zollitsch, Werner; Sundrum, Albert. |
| The QLIF project has targeted a variety of issues to make organic animal production (dairy cattle, pig, poultry) more safe, develop alternative methods to promote animal health and improve product quality. This workshop will discuss these aims as well as the QLIF achievements to date. It will also address our way of assessing the quality of our organic farms. We ask the question what the advantages are of doing this by looking at the output of a farm, such as yield, animal welfare and environmental issues. Alternatively, we also want to know what benefits there are in looking at how the farm is organised, via input factors such as housing design, nutrition, management quality. Two invited speakers will state their preference. Legislation, certification and... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Health and welfare. |
| Ano: 2008 |
URL: http://orgprints.org/13351/2/qlif-workshop4-abstract-spoolder-etal-2008-livestock-systems.doc |
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| Petersen, Heidi Huus; Mejer, Helena; Jianmin, Wang; Katakam, Kiran Kumar; Thamsborg, Stig Milan; Dalsgaard, Anders; Olsen, Annette; Enemark, Heidi L.. |
| Pigs are potential sources of contamination with Cryptosporidium spp., which can lead to infection in humans. Cryptosporidiosis in humans is primarily caused by two species, C. hominis and the zoonotic C. parvum, however, other species including C. suis and C. scrofarum are able to cause zoonotic infection. The oocysts can survive for long periods in the environment and are able to resist most disinfectants. In order to estimate the prevalence of Cryptosporidium spp. in organic pigs and to improve knowledge of the epidemiology, the oocyst excretion was monitored at quarterly intervals during the period September 2011 to June 2012 in each of three organic, Danish pig farms. Faecal samples for examination of Cryptosporidium spp. were collected from 994 pigs... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Health and welfare. |
| Ano: 2013 |
URL: http://orgprints.org/27379/7/27379.pdf |
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| Mejer, Helena; Andersen, Stefan; Roesptorff, Allan. |
| Background: Helminths are common in European organic pig production systems and the use of deep-litter has long been considered a serious risk factor contributing to this problem. However, until now hardly any data has existed to either support or reject this hypothesis, thus complicating formulation of farmer guidelines. Methods: On an organic Danish pig farm, 3 different areas (latrine, resting area and the area in-between) of 2 indoor fattening pens with deep-litter (min. 2 months old) were examined for Ascaris suum and Trichuris suis eggs. The deep-litter was sampled vertically 10, 20, 30, 40, 50, and 60 cm from the surface, by pooling 4 sub-samples per level. In addition, eggs were isolated from the top, middle, and bottom of deep-litter (3-4... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Health and welfare; Pigs. |
| Ano: 2011 |
URL: http://orgprints.org/20003/2/20003.pdf |
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| Sundar, Thapa; Meyling, Nicolai V.; Katakam, Kiran Kumar; Thamsborg, Stig Milan; Mejer, Helena. |
| Thick-shelled ascarid eggs have been reported to remain infective in the environment for several years, thus posing a prolonged risk of infection to animals and/or humans. The following in vitro study was therefore conducted to evaluate the negative impact of two species of naturally occuring soil microfungi (Pochonia chlamydosporia and Paecilomyces lilacinus), on the viability of Ascaridia galli, Toxocara canis and Ascaris suum eggs. Approximately 150 fresh eggs of individual ascarid species were embryonated on a 2% water agar in Petri dishes with or without a fungus (P. chlamydospria or P. lilacinus). On days 7, 14, 21, 28, 35 and 42 post experimental set up (p.s.), the viability of the eggs in each experimental group was evaluated (destructive... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Health and welfare. |
| Ano: 2013 |
URL: http://orgprints.org/27371/7/27371.pdf |
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| Katakam, Kiran Kumar; Thamsborg, Stig Milan; Dalsgaard, Anders; Mejer, Helena. |
| Although Ascaris suum is the most common nematode in pig farms, the on-farm transmission dynamics is not well described. Hence we performed a 1-year field study on organic pig farms, mapping egg contamination levels in pens and on pastures (dry sows, lactating sows and starters) and infection levels in animals. In conclusion, recovery of infective eggs was limited in deep litter compared to shallow litter, but many deep litter eggs were still viable. A. suum transmission takes place both indoors and outdoors. Highly infective bedding material should be stored, composted or treated before spreading on crops and never used for pastures. |
| Tipo: Journal paper |
Palavras-chave: Health and welfare. |
| Ano: 2014 |
URL: http://orgprints.org/27394/7/27394.pdf |
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| Petersen, Heidi Huus; Jianmin, Wang; Katakam, Kiran Kumar; Mejer, Helena; Ståhl, Marie; Dalsgaard, Anders; Olsen, Annette; Thamsborg, Stig Milan; Enemark, Heidi. |
| Although pigs are commonly infected with Cryptosporidium and Giardia duodenalis, and thus potential reservoirs of zoonotic species (or genotypes), little is known about age-related infection levels, seasonal differences and genetic variation in naturally infected pigs. Thus, to characterise seasonal and age-related variation in prevalence and intensity of infections at farm level, (oo)cyst shedding was monitored at quarterly intervals (September 2011 to June 2012) in piglets (n=152), young pigs (n=234), finishers (n=230) and sows (n=240) from three organic, Danish farms. (Oo)cysts were quantified by immunofluorescence microscopy; and representative Cryptosporidium (n=75) and Giardia (n=67) positive subsamples were characterized by amplification and partial... |
| Tipo: Journal paper |
Palavras-chave: Health and welfare. |
| Ano: 2014 |
URL: http://orgprints.org/27342/7/27342.pdf |
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| Roepstorff, Allan; Mejer, Helena; Thomsen, Lisbeth E.; Thamsborg, Stig M.; Byrne, Derek V.; Hansen, Laurits L.; Bach Knudsen, Knud Erik; Møller, Kristian. |
| The carbohydrate inulin is known to reduce the production of skatole in pigs. This is caused by inulin changing the intestinal flora, so that the bacteria that produce skatole are held in check. This change in intestinal flora also reduces the number of intestinal parasites in the pigs. However the high cost of inulin makes its use in pig feed impractical. Chicory root contains inulin and a series of other carbohydrates and secondary metabolites. Therefore we have examined whether chicory root can replace pure inulin and thereby reduce boar taint, improve the taste of pork and reduce the infection of pigs with pathogenic parasites and bacteria. |
| Tipo: Journal paper |
Palavras-chave: Health and welfare; Feeding and growth. |
| Ano: 2005 |
URL: http://orgprints.org/9369/1/9369.pdf |
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| Mejer, Helena. |
| Temadag om økologisk svineproduktion på Hovborg Kro Holmeåvej 2, 6682 Hovborg 13. juni 2013 kl. 9-17 Besætningsbesøg hos Nicolaj Pedersen, Hovborgvej 84, Hovborg (bus afgang fra Hovborg Kro kl. 9.00) Velkomst og introduktion til dagen / Marianne Bonde, UHF Hangriseproduktion / ordstyrer Jan Tind Sørensen • Hangriselugt, hvad er det? - Og kan det reduceres i praksis? v Hanne Maribo, Videncenter for Svineproduktion og Bent Borg Jensen, Aarhus Universitet • Kan ekstra rengøring fjerne lugten af orne – eller er det slagtevægten der skal optimeres? v Rikke Thomsen, Aarhus Universitet og økologisk svineproducent Preben Drastrup, Nibe • Erfaringer fra praksis med hangrise v økologisk svineproducent Gert Ladegaard Jensen, Ikast Slagtesvin på friland og... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Feeding and growth; Health and welfare. |
| Ano: 2013 |
URL: http://orgprints.org/24711/7/24711.pdf |
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| Lund-Nielsen, Tina; Mejer, Helena; Gunnarsson, Carina; Hansen, Preben Klarskov; Grigalaviciene, Ilona. |
| The document is an assessment for the SOAR summerschool in 2003, and describes the results from interviews with the scientists Dr. Johanna Björklund, Centre for Sustainable Agriculture, Swedish University of Agricultural Sciences, Sweeden and Ass. Prof. Dr. Thomas van Elsen, Department of Organic Farming and Cropping Systems, University of Kassel,Germany |
| Tipo: Report |
Palavras-chave: Research methodology and philosophy; Policy environments and social economy; "Organics" in general; Indicators and other value-laden measures; Landscape and recreation; Biodiversity and ecosystem services. |
| Ano: 2003 |
URL: http://orgprints.org/3487/1/3487.pdf |
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| Mejer, Helena. |
| Scientific Workshop on Organic Pig Production, Hovborg Kro, Holmeåvej 2, 6682 Hovborg, DK June 12th and 13th 2013 Welcome (Marianne Bonde, UHF) Sandra Edwards (UK): Future challenges in organic pig production Theme 1: Production of entire male pigs / Chaired by Jan Tind Sørensen The aim of organic pig production is to ensure high animal welfare and natural products. Banning castration is thus a logical step forward, but the risk of boar taint in the meat is a major barrier for marketing meat from entire male pigs. Is it possible to use genetic tools and breeding strategies to prevent boar taint? What is the effect of feeding, management, housing and hygiene? Is it possible to process the meat to minimize the risk of boar taint? These issues will be... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: "Organics" in general; Feeding and growth; Health and welfare. |
| Ano: 2013 |
URL: http://orgprints.org/24720/13/24720.pdf |
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| Registros recuperados: 53 | |
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