This study aimed to measure the economic effectiveness of using acidifying substances (acetic and lactic acids) and/or Enterobiotics probiotic products (Lactobacillus acidophilus LA-14 and Bifidobacterium lactis BI-04) and Enterolactis Plus (Lactobacillus casei) as supplements in the spring stimulation feeds administered to bee colonies. The use of Enterobiotics probiotic products (Lactobacillus acidophilus LA-14 and Bifidobacterium lactis BI-04) or Enterolactis Plus (Lactobacillus casei). In bee nutrition after their spring cleaning flight led to an increase in profit from honey sales of between 18.6% and 45.49% as compared to the control group, which was fed with unmodified sugar syrup. The best results were registered with the experimental variants fed with Enterobiotics product (EG5 and EG6 ). It can be seen that a double dose (2.5 g) of the Enterobiotics product (EG6 ) resulted in an increased yield of 6 kg of honey per colony, giving a 13.22% higher profit than the experimental group EG5 , where only 1.25 g was added. The association of an acidifying substance (lactic acid) with a probiotic product (Enterobiotics or Enterolactis Plus), although raising the cost of feeding the colony, brought about a profit increase of between 26% and 45.56% compared to the group fed with plain sugar syrup (CG), the highest profit being registered by group EG9 (sugar syrup + 2.5 mL lactic acid + 2.5 g Enterobiotics).

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