Values of plasma total proteins of free-living marmosets (Callithrix jacchus) in an urban forest.

Background: Callithrix jacchus is a small primate widely used in experimentation, but data on plasma total protein (PTP) values of free-living animals inhabiting its own endemism region are non-existent.

Methods: Marmosets belonging to two free-living groups were captured for marking and obtaining biological material. The collected blood was centrifuged to obtain the plasma and thus to determine the concentration of PTP.