monoclonal antibodies directed against porcine immunoglobulin isotypes g , g1 , g2 , m , and a and against chicken immunoglobulin isotopes g , m , and a were tested in an antigen-specific spot-forming cell ( sfc ) assay based on the principle of the enzyme immunoassay .
C0021017
immunoglobulin isotypes
C0020852
immunoglobulin