Tsim los rau chav dej, nws yog ua los ntawm cov khoom siv PP uas tsis plam, lub teeb yuag, ruaj khov thiab tiv taus xeb, nrog lub peev xwm nqa tau txog li 150kg, muab kev txhawb nqa ruaj khov yam tsis ntshai kev nplua. Cov qhov dej ntws faib rau ntawm qhov chaw ntawm lub rooj zaum, kev xa dej sai tsis sib sau ua ke; hauv qab yog nruab nrog cov khob nqus muaj zog + cov ntaub so taw tsis plam, ob chav ruaj khov kom tsis txhob tig sab, da dej, da dej hauv da dej kom muaj kev thaj yeeb nyab xeeb ntau dua.
Cov ntsiab lus ntawm tib neeg:
Tsim tsis muaj nraub qaum: txuag qhov chaw, tig tau yooj yim, haum rau chav dej me me lossis qhov chaw uas xav tau kev txav mus los dawb;
Qhov siab kho tau (38-46cm peb qhov kev hloov kho), hloov kho rau qhov siab sib txawv;
Cov npoo puag ncig tiv thaiv khawb + qhov chaw khov kho, tsis plam thiab xis nyob, zaum ntev yam tsis txias.