Cryptosporidium and Giardia in Danish organic pig farms: Seasonal and age-related variation in prevalence, infection intensity and species/genotypes.
Transport of Cryptosporidium parvum Oocysts in Soil Columns following Applications of Raw and Separated Liquid Slurries
- H. H. Petersen, H. Enemark, A. Olsen, M. Amin, A. Dalsgaard
- Chemistry, MedicineApplied and Environmental Microbiology
- 15 June 2012
Destructively sampling of the soil columns showed that type of slurry and irrigation played a role in the vertical distribution of oocysts, with more oocyst recovered from soil columns added liquid slurry irrespective of the irrigation status.
Prevalence of Capillaria plica in Danish wild carnivores
SARS-CoV-2 in Danish Mink Farms: Course of the Epidemic and a Descriptive Analysis of the Outbreaks in 2020
Prevalence data collected from 215 infected mink farms is described to characterize spread and impact of disease in infected farms and it is apparent that mink are highly susceptible to infection by SARS-CoV-2, but routes of transmission between farms, other than by direct human contact, are unclear.
Population Dynamics of Ascaris suum in Trickle-infected Pigs
- P. Nejsum, S. Thamsborg, H. H. Petersen, H. Kringel, M. Fredholm, A. Roepstorff
- BiologyJournal of Parasitology
- 6 November 2009
Dramatic reductions in numbers of liver lesions (white spots) and migrating lung larvae were observed as a function of time, and the adult worm population seemed to consist of worms from the first part of the exposure period.
Effect of the nematophagous fungus Pochonia chlamydosporia on soil content of ascarid eggs and infection levels in exposed hens
Pochonia chlamydosporia was very effective in reducing ascarid egg numbers in sterilised soil and thus worm burdens in the exposed hens, however, reduced exposure of hens shifted A. galli populations toward a higher proportion of mature worms and resulted in a higher faecal egg excretion within the study period.
Patterns of Fasciola hepatica infection in Danish dairy cattle: implications for on-farm control of the parasite based on different diagnostic methods
While important differences between farms and over time were seen, the young stock was consistently seen as the main high-risk group and at least one farm also had suspected transmission (re-infection) within the lactating herd, suggesting that summer infections in snails prevail in Denmark.
Methods for the identification of farm escapees in feral mink (Neovison vison) populations
The body length of mink, and fluorescent biomarkers in canine teeth are considered as useful tools to identifing mink that have escaped from farms.
Removal of Cryptosporidium parvum oocysts in low quality water using Moringa oleifera seed extract as coagulant
Toxoplasma gondii seroprevalence in extensively farmed wild boars (Sus scrofa) in Denmark
- C. Laforet, G. Deksne, H. H. Petersen, P. Jokelainen, M. Johansen, B. Lassen
- BiologyActa Veterinaria Scandinavica
- 15 January 2019
The T. gondii parasite appeared widespread, at least in the continental part of Denmark, Jutland, as seropositive wild boars were found from all five sampled locations.