Immunoglobulins in birds

IMMUNOGLOBULINS IN BIRDS

  • Predominant serum immunoglobulin in birds is lgY similar to mammalian IgG,
  • Heavy chain is Epsilon.
  • Chicken possess the full sized 180 KDa isoform of lgY. Ducks and geese possess full sized and truncated (120KDa) isoforms.
  • A monomeric IgM can be defected in the amniotic fluid of eggs and in one day old chicks.
  • IgA is present in chicken secretions and polymers are common.
  • An avian homolog of IgD has been identified.
Last modified: Friday, 23 September 2011, 10:41 AM