Goat anti-chicken IgG (H&L), FITC (fluorescein-5-isothiocyanate) conjugated i a secondary antibody which binds to chicken IgG (called also chicken IgY) in immunological assays. FITC has Amax = 494 nm, Emax = 518 nm. Fluor to protein ratio is 3-7 moles FITC per mole antibody. Antibodies are affinity purified using solid phase chicken IgY (called also chicken IgG). (H&L)