blood alpha-fetoprotein amount serum alpha-fetoprotein amount 2018-06-12T09:40:40Z caripark CMO:0001472 The proportion, quantity, or volume in serum of the highly abundant plasma protein produced by the yolk sac, liver and gastrointestinal tract during fetal life and by certain neoplasms in the adult. VT:0010777 Trait.ontology