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  • Title: Sero-epidemiological survey of Dictyocaulus viviparus infections in first-season grazing calves in The Netherlands.
    Author: Boon JH, Ploeger HW, Raaymakers AJ.
    Journal: Vet Rec; 1986 Nov 08; 119(19):475-9. PubMed ID: 2947380.
    Abstract:
    A sero-epidemiological survey of Dictyocaulus viviparus infections in calves was carried out using an enzyme-linked immunosorbent assay. Infection level with D viviparus was correlated with farm, herd and management characteristics. At least 75 per cent of the herds were infected with D viviparus. Calves on zero-grazing farms were infected at a lower level than calves grazing pasture. No regional differences in infection rate were observed. On 15 per cent of the farms calves had clinical husk while 51 per cent of farms had experienced husk in the past. A higher level of infection was seen when calves were housed later in the autumn. The number of calves grazing together and the stocking rate had a significant positive influence on the level of infection. No significant difference in the occurrence of clinical husk was observed between calves vaccinated against lung-worm disease and calves not vaccinated against the disease.
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