In order to enter an animal as DOA, you'll need to configure an intake subtype, under the specific intake type you'd like to use, that is set to Live Intake = DOA (see below).
Any animal intaken with a subtype set this way will automatically be outcomed as DOA. See these articles here for more information on setting up intake and outcome subtypes: Setting up your intake forms and subtypes and Setting up your outcome forms and subtypes.