1. Refractometry as a measure of the immunoglobulin status of the newborn dairy calf: Comparison with the zinc sulfate test and single radial immunodiffusion;Naylor;J Am Vet Med Assoc,1977
2. Serum gamma-glutamyltransferase activity and protein concentration at birth and after suckling in calves with adequate and inadequate passive transfer of immunoglobulin G;Perino;Am J Vet Res,1993
3. Evaluation of 3 assays for failure of passive transfer in calves;Tyler;J Vet Intern Med,1996
4. The relationship between serum immunoglobulin values and incidence of respiratory disease and enteritis in calves;Blom;Nord Veterinaermed,1982
5. Colostral transfer of immunoglobulins to the calf;Besser;Vet Annu,1993