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Assessment of colostral transfer and systemic availability of immunoglobulin G in new-born foals using a newly developed enzyme-linked immunosorbent assay (ELISA) system by M. H. Erhard; C. Luft; H.-P. Remler; M. Stangassinger is a Agricultural and Biological Sciences article available to read on EtoBox.

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To measure the immunoglobulin G (IgG) concentration in colostrum, milk and serum samples, a sandwich enzyme‐linked immunosorbent assay (ELISA) detection system was developed. The system provided high reproducibility and sensitivity for routine diagnostic purposes. The period of fluctuating serum concentrations of IgG was monitored in new‐born foals and their mares for a period of 6 weeks postnatum and postpartum, respectively. All foals received colostrum from their mares. The mean IgG concentration in the precolostral mare serum was approximately 19.0 mg/ml and decreased significantly to 13.8 mg/ml within the first 24 h postpartum. The IgG value fell to a minimum of 11.2 mg/ml by day 21 and increased to 21.6 mg/ml by day 42 postpartum. Within the first 4 h postpartum, mean IgG concentrations of 54.5 mg/ml were measured in the colostrum. A significant decrease to 10.1 mg IgG/ml colostrum was then noted 9–12 h postpartum. The mean IgG concentrations in foal serum increased from 0.3 mg/ml (precolostral value) to 9.6 mg/ml within 5–8 h postnatum. After 13–16 h postnatum, the highest IgG value of 15.7 mg/ml was reached. Over time the mean IgG concentration decreased significantly to 7.

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Author

M. H. Erhard; C. Luft; H.-P. Remler; M. Stangassinger

Publisher

John Wiley and Sons; Wiley (Blackwell Publishing); Blackwell Publishing Inc.; Wiley-Blackwell Publishing Ltd; Wiley (ISSN 0931-2439)

Published

2001

Language

EN

Field

Agricultural and Biological Sciences (Life Sciences)