The paper presents the results of studying the influence of nutritional feed additive Vitacorm BSR (biogenic stimulator obtained from plant raw material through anaerobic bacterial fermentation) on queens’ prolificacy, development degree and productivity of bee colonies. Three groups of bee colonies (Carpathian breed) received with sugar syrup different doses of additive (1, 2 and 3 ml), administered every 10-12 days, from April 22 until the beginning of the main honey flow on black locust. Obtained data show that the optimum dose of the nutritional additive is 2.0 ml/l of sugar syrup in a concentration of 1: 1.After the main honey flow on black locust (May 25) it was determined that the nutritional additive provided an increase of bee families power by 5.7 to 10.7 spaces among the combs populated by bees and an increase of honey production of 29.9 - 50.6%. The oviposition of the queens from the experimental groups was of 1069-1314 eggs in 24 hours or by 26.66-55.69% more compared to the control group, which was fed only with sugar syrup (844 eggs).

Lucrarea prezintă rezultatele studiului privind influenţa aditivului nutriţionalVitacormBSR (stimulator biogen obţinut dinmaterie primă vegetală prin fermentare bacteriană anaerobă) asupra prolificităţii mătcilor, gradului de dezvoltare şi productivităţii familiilor de albine. Trei loturi de familii de albine (rasaCarpatică) au primit impreună cu siropul de zahăr diferite doze de aditiv (1,2 şi 3 ml), administrate odată la 10-12 zile, incepand cu data de 22 aprilie şi pană la inceputul culesului principal de la salcamul alb. Datele obţinute demonstrează că doza optimală a aditivului nutriţional este de 2,0 ml/l de sirop de zahăr in concentraţie de 1:1. După culesul de la salcamul alb (25mai) s-a constatat că aditivul nutriţional a asigurat o creştere a puterii familiilor de albine cu 5,7-10,7 spaţii dintre faguri populaţi cu albine şi omajorare a producţiei demiere cu 29,9-50,6%. Ponta mătcilor in loturile experimentale a constituit 1069-1314 ouă in 24 ore sau cu 26,66-55,69%maimult faţă de lotulmartor, care a fost alimentat doar cu sirop de zahăr (844 ouă).