The research was conducted within the project 20.80009.5107.12 ” Strengthening the "food-animal-production" chain by using new feed resources, and inno-vative sanitation methods and schemes” aimed at testing the inclusion efficiency of the Streptomyces fradiae CNMN-Ac-11 biomass strain in the combined feed recipes on the growth performance of broiler chickens. For this purpose, within ME ”PB Nord”LLC, located in Bleșteni village, Edineț district an experiment was organized on a crowd of 100 heads of Hubbard broiler chickens, aged one day, randomly distributed in two batches ( one control and another experimental), which provided for the administration in the diet of Hubbard broiler chickens from the ex-perimental group of the combined fodder in the structure of which was included the biomass of Streptomyces fradiae CNMN-Ac-11 strain of 0.1%, in order to finally be established its influence on the productivity of broiler chickens. The administration of Streptomyces fradiae CNMN-Ac-11 strain biomass in the feeding the Hubbard broiler chickens recorded at the age of 55 days a body weight gain of 2573 g. in chickens from the experimental group and 2234 g. in chickens from the control group. Respectively, a 15.1% higher weight gain was obtained in the experimental group compared to the control group. The specific consumption in the experimental group was 1.86 kg, compared to 1.97 kg from the control group, or 5.9% lower in the experimental group compared to the control group.