Abstract The aim of the research was to evaluate different levels of Amino-Vit as a supplement in the feeding of honey bees (Apis mellifera). The duration of the experiment was 60 days and 12 Langstroth type hives were used. divided into four homogeneous groups. The variables under study were: initial and final weight of the hives (kg). https://allfixelectricales.shop/product-category/control-pcb/