When using these by-products, farmers should nevertheless be extra cautious to ensure the by-products have not been contaminated with dead animals and does not contain any harmful chemicals or toxins.
Fa go dirisa ditswa-ditlhagisweng tseno, balemirui ba tshwanetse go nna kelotlhoko go netefatsa fa ditswa-ditlhagisweng di sa kgotlelwa ke diphologolo tse di suleng le gore ga di na dikhemikhale kgotsa toxins tse di kotsi.