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Abstract

To study the survival of oocysts of bovine Eimeria spp. in slurry incubated at different temperatures, slurry obtained from a Danish cattle herd was mixed with faeces from a naturally infected calf and incubated at 55°C, 35°C, 20°C, or 4°C, respectively, for 30 days. Subsamples of 30 ml from each...

Author(s)
Larsen, A. B.; Henriksen, S. A.
Publisher
INRA Service des Publications, Versailles, France
Citation
Coccidia and intestinal coccidiomorphs. Proceedings of the 5th International Coccidiosis Conference. Tours (France), 17-20 October 1989.., 1989, pp 467-470
Abstract

Infections with Cryptosporidium are common among calves. Clinical infections and oocyst shedding occur primarily during the 2nd and 3rd weeks of life, indicating that bovine infections are usually established during the first fortnight of life. Oocysts of Cryptosporidium are infective when shed,...

Author(s)
Henriksen, S. A.
Publisher
Animal Diseases Research Association, Edinburgh EH17 7JH, UK
Citation
Cryptosporidiosis. Proceedings of the First International Workshop. Edinburgh, 1988., 1989, pp 79-83
Abstract

The species referred to include: Bovicola bovis, Linognathus vituli, Haematopinus eurysternus and Solenopotes capillatus.

Author(s)
Sommer, C.; Bresciani, J.; Henriksen, S. A.; Lyshede, O. B.; Frandsen, F.
Citation
Dansk Veterinærtidsskrift, 1995, 78, 16, pp 811-815
Abstract

Larvae of D. viviparus were cultured in experimental units of 200 g of cattle faeces placed in semi-transparent trays. In each of 4 experimental series, chlamydospores of the nematode-trapping fungus Duddingtonia flagrans were admixed to 3 of 6 faecal cultures at a concentration of 50 000...

Author(s)
Henriksen, S. A.; Larsen, M.; Grønvold, J.; Nansen, P.; Wolstrup, J.
Citation
Acta Veterinaria Scandinavica, 1997, 38, 2, pp 175-179
Abstract

During the last decade an increasing number of so-called "cysticercosis storms" in cattle have been reported in Denmark. This review focusses on the epidemiological background to this and discusses some developments at the farm level which may have led to changes in transmission routes and risks....

Author(s)
Nansen, P.; Henriksen, S. A.
Publisher
Elsevier Applied Science Publishers, London, UK
Citation
Epidemiological studies of risks associated with the agricultural use of sewage sludge: knowledge and needs, 1986, pp 76-82
Abstract

The prevalence of Cysticercus bovis in cattle in Denmark (based on slaughterhouse records) has been less than 1% for most of the time between 1918 and 1982. During the last 5 to 10 years there has been an increasing number of localized herd infections ("cysticercosis storms") characterized by a...

Author(s)
Henriksen, S. A.; Nansen, P.
Publisher
Commission of the European Communities, Luxemburg, France
Citation
Agriculture. Some important parasitic infections in bovines considered from economic and social (zoonosis) points of view. Parasitological symposium, Lyons, 24-26 October 1983., 1984, pp 151-153
Abstract

Faecal samples from asymptomatic dairy cows and calves from a farm on the Island of Falster, Denmark, were examined by a sucrose gradient flotation technique. Giardia cysts were found in 7.6% of the 92 samples from 59 cows and 33 calves, and estimated cyst excretion rates ranged from 50 to 200...

Author(s)
Ilburg, T.; Gasser, R. B.; Henriksen, S. A.
Citation
Acta Veterinaria Scandinavica, 1996, 37, 3, pp 337-341
Abstract

Two groups of 12 calves were given either a single infection dose of 30 000 Taenia saginata eggs (group A) or trickle infected with 12 × 2500 T. saginata eggs (group B). The calves were killed 16, 22 or 54 weeks after infection and the numbers of viable and dead parasites were counted by slicing...

Author(s)
Bøgh, H. O.; Grønvold, J.; Maeda, G. E.; Nansen, P.; Lind, P.; Ilsøe, B.; Henriksen, S. A.; Geerts, S.
Citation
Research in Veterinary Science, 1996, 60, 1, pp 64-68
Abstract

Author(s)
Henriksen, S. A.; Bresciani, J.; Sommer, C.; Frandsen, F.; Lyshede, O. B.
Citation
Dansk Veterinærtidsskrift, 1995, 78, 15, pp 759-762
Abstract

Animal husbandry practices in The Netherlands with regard to cattle, sheep, horses and pigs are briefly described. Estimates are given of the use of anthelmintics. Benzimidazole resistance (in sheep) is discussed. So far resistance has not been observed in cattle and pigs, but one case in a horse...

Author(s)
Eysker, M.; Borgsteede, F. H. M.; Jansen, J.; Kloosterman, A.
Publisher
Centraal Diergeneeskundig Instituut, Lelystad, Netherlands
Citation
Facts and reflections IV. Resistance of parasites to anthelmintics. A workshop in the C.E.C. animal pathology programme held at the Central Veterinary Institute, Lelystad, The Netherlands, 9-10 December 1982., 1983, pp 155-165

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