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Abstract

Calves aged 3 months were infected weekly for 10 weeks with trichostrongylid larvae (90% Cooperia spp., 10% Ostertagia spp.) in 5 different doses chosen to simulate the pattern of infection acquired from the herbage in calf paddocks. Statistically, analysis revealed a linear regression of weight...

Author(s)
Kloosterman, A.; Borgsteede, F. H. M.; Hendriks, J.; Brink, R. van den
Citation
Tijdschrift voor Diergeneeskunde, 1974, 99, 2, pp 127-136
Abstract

Two trials with stabled milking cows were carried out. In the first, cows were either experimentally infected with O. ostertagi larvae or served as naturally-infected controls. In the 2nd, cows were treated the same as in the first trial, but in addition half of the number of cows of each group...

Author(s)
Kloosterman, A.; Borgsteede, F. H. M.; Eysker, M.
Citation
Veterinary Parasitology, 1984, 17, 4, pp 299-308
Abstract

The clinical signs of Type I and Type II ostertagiasis in young cattle were accompanied by marked increases in the levels of plasma pepsinogen, plasma gastrin, and antibody titres to adult Ostertagia antigen. At necropsy there were significant relationships between the combined total of adult and...

Author(s)
Entrocasso, C.; McKellar, Q.; Parkins, J. J.; Bairden, K.; Armour, J.; Kloosterman, A.
Citation
Veterinary Parasitology, 1986, 21, 3, pp 173-188
Abstract

The effect of infection with trichostrongylids on metabolic rate and protein gain in calves was studied in 2 experiments. In the 1st, 8 male Friesian calves 3 to 6 months old were normal or infected with 20  infective larvae of Cooperia spp. and 7 weeks later with 350 000 of the larvae. During 10...

Author(s)
Verstegen, M. W. A.; Hel, W. van der; Albers, G. A. A.; Kloosterman, A.
Citation
Journal of Animal Physiology and Animal Nutrition, 1988, 60, 4, pp 209-218
Abstract

On 81 farms blood samples were taken from adult dairy cattle, on pasture in October 1986 and after stabling in December 1986, to measure antibody titres against Dictyocaulus viviparus , Cooperia spp. and Ostertagia spp., and Fasciola hepatica, and serum pepsinogen values. Faecal samples, collected...

Author(s)
Ploeger, H. W.; Kloosterman, A.; Bargeman, G.; Wuijckhuise, L. V.; Brink, R. van den
Citation
Veterinary Parasitology, 1990, 35, 1-2, pp 103-116
Abstract

Available data in the literature on the quantitative relationship between level of exposure to infection and growth performance are summarised. Based on questions derived from earlier work concerning the relationships between infection, growth performance and acquired immunity during the entire...

Author(s)
Ploeger, H. W.; Kloosterman, A.
Citation
Veterinary Parasitology, 1993, 46, 1-4, pp 223-241
Abstract

In 2 experiments, groups of calves which had been exposed to different levels and patterns of infection with Ostertagia and Cooperia spp. in a simulated first grazing season (FGS), were followed throughout a natural second grazing season (SGS). Milk yields in the subsequent first lactation period...

Author(s)
Ploeger, H. W.; Kloosterman, A.; Rietveld, F. W.; Hilderson, H.; Berghen, P.; Pieke, E. J.
Citation
Veterinary Parasitology, 1996, 65, 1/2, pp 99-115

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