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Abstract

Development of immunity to Ostertagia ostertagi and Cooperia oncophora and interactions between both species in primed calves were investigated after homologous, heterologous and concurrent challenge infections. Worm counts, faecal egg output, IgG1 and IgG2 antibodies and the presence of globule...

Author(s)
Hilderson, H.; Vercruysse, J.; Claerebout, E.; Graaf, D. C. de; Fransen, J.; Berghen, P.
Citation
Veterinary Parasitology, 1995, 56, 1/3, pp 107-119
Abstract

Muscle tissue from the oesophagus, diaphragm and heart of 100 cattle slaughtered in Belgium was examined for Sarcocystis infection by microscopic examination of tissue and artificial digestion. Intact sarcocysts or cystozoites were recovered from 97% of the cattle examined. There was a difference...

Author(s)
Vercruysse, J.; Fransen, J.; Goubergen, M. van
Citation
Journal of Veterinary Medicine, B (Infectious Diseases, Immunology, Food Hygiene, Veterinary Public Health), 1989, 36, 2, pp 148-153
Abstract

S. nasale was detected in 12.6% of 1393 cattle slaughtered in Kandy, Sri Lanka, between January and December 1987. The prevalence was significantly lower in March (3%) than in other months (10-17%). The prevalence of infection, number of lesions and severity of lesions increased with increasing age ...

Author(s)
Bont, J. de; Aken, D. van; Vercruysse, J.; Fransen, J.; Southgate, V. R.; Rollinson, D.
Citation
Parasitology, 1989, 98, 2, pp 197-202
Abstract

The pathology of natural S. spindale infections in cattle in Sri Lanka was studied. Hepatic lesions were moderate with periportal cell infiltration and periportal epithelioid cell granulomas within perilobular zones. Submucosal and mucosal granulomas accompanied by cellular changes were present in...

Author(s)
Fransen, J.; Bont, J. de; Vercruysse, J.; Aken, D. van; Southgate, V. R.; Rollinson, D.
Citation
Journal of Comparative Pathology, 1990, 103, 4, pp 447-455
Abstract

Of 1249 male cattle examined in the slaughterhouse at Kandy, Sri Lanka, during 1987, 40% were infected with M. laryngeus (range 34 to 52%). The infection rate was highest (47%) in 2- to 2.5-year-old animals. In infected animals an average of 6.4 parasite pairs was found with higher numbers in older ...

Author(s)
Aken, D. van; Bont, J. de; Fransen, J.; Vercruysse, J.
Citation
Journal of Helminthology, 1989, 63, 1, pp 47-52
Abstract

From 2 farms near Peradeniya, Sri Lanka, 7 of 10 European cross-bred cows naturally infected with S. nasale were treated orally with praziquantel powder suspended in water at 20 mg/kg body weight; 3 were untreated controls. Lesion scores, and numbers of miracidia and eggs in 1 ml nasal secretion,...

Author(s)
Bont, J. de; Aken, D. van; Vercruysse, J.; Fransen, J.; Southgate, V. R.; Rollinson, D.
Citation
Journal of Veterinary Pharmacology and Therapeutics, 1989, 12, 4, pp 455-458
Abstract

The influence of different levels of infection with O. ostertagi on the development of a protective immune response in calves was investigated. Four groups of calves were infected with either 5000 (Group A), 10 000 (Group B), 20 000 (Group C) or 40 000 (Group D) infective larvae (O. ostertagi L3)...

Author(s)
Hilderson, H.; Vercruysse, J.; Graaf, D. C. de; Bastiaensen, P.; Fransen, J.; Berghen, P.
Citation
Veterinary Parasitology, 1993, 47, 3-4, pp 255-266
Abstract

Daily changes in serum gastrin and pepsinogen concentration were studied during 2 types of infection with O. ostertagi in calves. In a first experiment 2 calves were trickle infected (10 times 10 000 L3 Ostertagia) and 2 animals received a single infection of 100 000 L3 Ostertagia. Gastrin and...

Author(s)
Hilderson, H.; Dorny, P.; Berghen, P.; Vercruysse, J.; Fransen, J.; Braem, L.
Citation
Journal of Veterinary Medicine. Series B, 1991, 38, 1, pp 25-32

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