But in the Nara period, shinabe of shuyoshi (department of the ritsuryo bureaucracy responsible for falconry and hunting dogs) was abolished in 721, and then shinabe except the one of 'those who assume a hereditary profession' requiring advanced techniques were dismantled in principle to be incorporated into koko (one of the subcastes of ryomin) (regarded as general citizens) in 759.
ところが奈良時代に入ると、養老5年（721年）に主鷹司の品部廃止が行われ、続いて天平宝字3年（759年）に高度な技術を要する「世業相伝者」以外の品戸は原則廃止されて公戸に編入（一般の公民扱い）された。