Cod milt is called "Tachi (Tatsu) in Hokkaido, "Kiku" in Iwate Prefecture, "Dadami" in Akita Prefecture, Yamagata Prefecture, and Fukui Prefecture, and is processed into Kamaboko (steamed fish paste) within the jurisdiction area of Shiribeshi branch office, Hokkaido.
北海道でタラの白子は「タチ（タツ）」、岩手県では「きく」、秋田県、山形県、福井県では「だだみ」と呼ばれ、後志支庁管内ではかまぼこにも加工される。