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Introduction Calves are born agammaglobulinemic and rely on colostrum ingestion to absorb essential immunoglobulins for defense against disease. 1 Adequate transfer of passive immunity (ATPI) through colostrum is dependent on; 1) whether the

Open access
in Journal of the American Veterinary Medical Association

. A risk of misclassification exists for neonatal calves with IgG concentration near proposed threshold values for failed transfer of passive immunity. For sera that require dilution, it may be appropriate to state that the calf has adequate absorption

Open access
in American Journal of Veterinary Research
in American Journal of Veterinary Research

birth. Foals were considered healthy based on normal physical exam findings, attitude, appetite, and historic adequate transfer of passive immunity as well as hematology and biochemistry profile parameters within reference intervals. Per farm protocol

Open access
in American Journal of Veterinary Research

(Santa Cruz Biotechnologies; Cat #sc-390576; detailed in Supplementary Material S1 ) to confirm and compare VapA expression to select a vaccine candidate. Study population Thirty Quarter Horse foals that were healthy at birth, had transfer of

Open access
in American Journal of Veterinary Research