|
|
|
|
|
| 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 |
| |
|
|
| 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 |
| |
|
|
| 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 |
| |
|
|
| Takeuchi-Storm, Nao; Denwood, Matt; Petersen, Heidi Huus; Enemark, Heidi L.; Thamsborg, Stig MIlan. |
| A recent survey based on meat inspection data showed that approximately 30% of Danish cattle farms were infected with liver flukes, leading to significant economic losses. Despite the widespread problem, up-to-date knowledge on transmission patterns, diagnostic methods and practical measures for control is still lacking. We therefore initiated a longitudinal, observational study in a few infected dairy farms to elucidate farm specific transmission patterns based on different diagnostic methods and grazing management. Two organic and two conventional dairy farms with high F. hepatica antibody levels in bulk tank milk were selected. From each farm a cohort of 40 animals from different age groups (calves, heifers, primiparous and multiparous cows) were... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Dairy cattle; Health and welfare. |
| Ano: 2017 |
URL: http://orgprints.org/33992/1/WAAVP%202017%20presentation_nts_final.pdf |
| |
|
|
|
