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  • Title: Observations on parasitic gastroenteritis and parasitic bronchitis in calves over two grazing seasons.
    Author: Berghen P, Dorny P, Hilderson H, Vercruysse J, Hollanders W.
    Journal: Vet Rec; 1990 Oct 27; 127(17):426-30. PubMed ID: 2264245.
    Abstract:
    Two outbreaks of parasitic gastroenteritis were observed in a group of 10 first-season grazing calves, one in mid-July and one in mid-September. In both cases emergency anthelmintic treatment was needed to prevent further damage. Severe clinical signs were observed together with high faecal egg counts and high serum pepsinogen and gastrin concentrations. Low total protein and albumin concentrations were also observed, especially during the second outbreak. The ostertagia antibody levels followed a similar pattern to the serum pepsinogen and gastrin concentrations. At the end of the housing period a mild type II ostertagiasis was observed. In the second grazing season the heifers did not show any signs of parasitic gastroenteritis, but there was a serious outbreak of husk which required treatment.
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