Avian species have only a limited ability to dephosphorylate
myo-inositol phosphates (InsP) from plant
feedstuffs, and mineral feed phosphates are often supplied
to meet the birds’ requirement for P. Considerable
data have been published on the availability of different
P sources for poultry, and various approaches have been
applied to study P availability including P retention
and prececal (pc) P digestibility