In the periods of Qin and former Han dynasty, Kannuhi whose core consisted of prisoners of war and clans committing a serious crime was mainly engaged in the work at a government-owned factory or in breeding horses, birds, dogs and so on at a stock farm.
秦・前漢代においては、官奴婢は戦争捕虜や重罪を犯した氏族が中核を占めており主に官営工場の労働や牧場などでの馬・鳥・犬などの飼育を行っていた。