Zoo tagnrho rau kev thauj khoom sai/tso tawm ntawm ob qho kawg (tsheb thauj khoom, tsev rau khoom), cov khoom thauj ntev (cov yeeb nkab, ntoo, cov hlau), kev thauj khoom ntau (ntaub, khoom palletized), kev hloov chaw ua haujlwm/chaw cia khoom (tsim kom yooj yim nkag mus).