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Abstract

Cooperia oncophora total adult extracts were examined by Western blotting with sera from C. oncophora- and Ostertagia ostertagi-infected calves to determine species-specific antigens. It was shown that 2 antigens with apparent MWs of 14 200 and 14 900 were only recognized by calves which received a ...

Author(s)
Graaf, D. C. de; Berghen, P.; Hilderson, H.; Cock, H. de; Vercruysse, J.
Citation
International Journal for Parasitology, 1993, 23, 1, pp 141-144
Abstract

Antigenic differences between the developmental stages of O. ostertagi were studied by SDS-PAGE and Western blotting. Gel electrophoresis showed a complex protein pattern different for every stage with the O. ostertagi fourth stage larvae (L4) showing an intermediate protein pattern between the...

Author(s)
Hilderson, H.; Graaf, D. C. de; Vercruysse, J.; Berghen, P.
Citation
Research in Veterinary Science, 1993, 55, 2, pp 203-208
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

The Schistosoma mattheei egg output was monitored in 31 cattle over a 18-month period on a dairy farm near Lusaka, Zambia. The animals were kept on pasture with free access to two streams which were suitable for the intermediate host, Bulinus globosus. Individual faecal egg excretion reached an...

Author(s)
Bont, J. de; Vercruysse, J.; Sabbe, F.; Southgate, V. R.; Rollinson, D.
Citation
Veterinary Parasitology, 1995, 57, 4, pp 299-307
Abstract

Ostertagia ostertagi adult worm extracts were analysed by Western blotting using sera from calves experimentally infected with O. ostertagi and Cooperia oncophora. Strong differences in antigen recognition were noticed, even between animals from the same group. Two Ostertagia specific antigens with ...

Author(s)
Graaf, D. C. de; Berghen, P.; Hilderson, H.; Claerebout, E.; Vercruysse, J.
Citation
International Journal for Parasitology, 1994, 24, 5, pp 681-688
Abstract

The inverse relationship between the intensive use of modern anthelmintics and the build up of immunity to gastrointestinal nematodes in cattle is discussed. Manifestations of immunity, humoral reactions, cell-mediated reactions, control, and chemoprophylaxis and immunity are discussed. It is...

Author(s)
Vercruysse, J.; Hilderson, H.; Claerebout, E.
Citation
Parasitology Today, 1994, 10, 4, pp 129-132
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

Thirty parasite-naive Holstein-cross heifers aged 7 to 12 months were allocated into 3 groups and were treated with either an oxfendazole pulse release bolus (Repidose) administered orally at turnout or ivermectin (Ivomec) injected s.c. at 200 µg/kg at 3, 8 and 13 weeks after turnout or untreated...

Author(s)
Hollanders, W.; Berghen, P.; Dorny, P.; Hilderson, H.; Vercruysse, J.; Ryan, W. G.
Citation
Veterinary Record, 1992, 130, 16, pp 355-356
Abstract

This special issue contains 12 papers which summarize more than 80 studies on key nematode and arthropod parasites of cattle. The data presented are the result of cooperative efforts between Pfizer scientists and parasitologists from around the world. The basic pharmacokinetics and efficacy of...

Citation
Veterinary Parasitology, 1993, 49, 1, pp vi + 119 pp.
Abstract

The first edition of the W.A.A.V.P. anthelmintic guidelines for ruminants was published in 1982. Since then improved parasitological procedures have been developed, new therapeutic and prophylactic products have appeared requiring different test methods, and registration authorities are requesting...

Author(s)
Wood, I. B.; Amaral, N. K.; Bairden, K.; Duncan, J. L.; Kassai, T.; Malone, J. B., Jr.; Pankavich, J. A.; Reinecke, R. K.; Slocombe, O.; Taylor, S. M.; Vercruysse, J.
Citation
Veterinary Parasitology, 1995, 58, 3, pp 181-213

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