Izifundo zobuthi
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Izifundo Zobuthi (LD50, Acute, Chronic, Geno)
Ukuphepha kufanele kuqinisekiswe ngaphambi kokuba umkhiqizo wethulwe emakethe. Senza izifundo zobuthi emikhiqizweni yamakhasimende ethu, ukuze sikhulule izinkathazo, futhi sithole imikhiqizo esebenzayo nephephile ukuze imakethwe. Le nsizakalo ihlanganisa ucwaningo lwe-LD50 yobuthi obuyingozi, isifundo sobuthi obungapheli, ucwaningo lobuthi bofuzo, njll.
