Cov khoom ntim uas yog yus tus kheej yog siv rau cov txiv hmab txiv ntoo kua txiv hmab txiv ntoo, dej haus cawv, dej haus cawv, hnoos kua nplaum, tshuaj yej thiab lwm cov khoom, ntxiv rau kev ua khoom noj khoom haus, qee yam khoom ntxhua khaub ncaws, cov tshuaj pleev ib ce, khoom siv kho mob thiab lwm yam khoom maj nce daim ntawv thov.
Cov hnab ntim nws tus kheej tau yooj yim dua rau cov dej haus, cov tib lub sij hawm yuav raug kaw thiab rov qhib dua, tuaj yeem pom tau tias yog ib lub hnab ntim tes pabcuam tus kheej thiab ua ke ntawm lub raj mis tibsi. Qhov hom ntawm tus kheej txhawb nqa lub hnab no feem ntau siv rau txhua yam khoom siv, xws li kua, cov khoom sib tsoo thiab cov khoom ib nrab, xws li dej haus, cov dej da dej, tsuaj zawv plaub hau, kua txiv lws suav, cov roj av, roj av, thiab lwm yam.