A radioimmunoassay for duck serum ferritin.

Development and optimization of a radioimmunoassay for duck serum ferritin described. 125I-labelled ferritin and rabbit anti-ferritin antibody are used together with goat anti-rabbit gamma globulin as separating agent for the bound and free fractions. The assay has a working range of up to 500 micrograms of ferritin per litre and a sample requirement of 50 microliter of serum. The assay requires a 24 h period and has a sensitivity of 10 micrograms of ferritin per litre.