The researches followed the effects of powderYEA-SACC 1026 probiotic on some production and consumption indices in chicken broilers. The researches were effected on 75 meat chickens of Ross-308 hybrid, which were grouped in three lots of 25 capita/lot during 42 days. In the lot L1(E), for 42 days, in the mixed fodder was added YEA-SACC 1026 probiotic in proportion of 0.1% in breeding phase I (1-14 days), of 0.1% in phase II (15-35 days) and 0.1% in phase III (36-42 days). In the lot L2(E), for

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... 2 days, in the mixed fodder was added YEA-SACC 1026 probiotic in proportion of 0.25% in breeding phase I (1-14 days), of 0.25% in phase II (15-35 days) and 0.25% in phase III (36-42 days). The chickens of all lots were weighted at the beginning of experiment and after that weekly being calculated the average body weight, average daily gain, fodder intake and fodder conversion index. The use of y YEA-SACC 1026 probiotic in lot L1(E) determined an increase of body weight with 16.26%, of average daily gain with 15.55% and the fodder conversion index was reduced with 29.16% given to Control Lot L(M). On the second place was situated the lot L2(E), in witch was administered 0.25% of YEA-SACC 1026 probiotic, with an increase of body weight of 8.32%, of average daily gain with 7.54% and the fodder conversion index was reduced with 21.78% given to Control Lot L(M). These superior results, registered in meat chickens from lot L1(E) YEA-SACC 1026 probiotic 0.1% and lot L2(E) YEA-SACC 1026 probiotic 0.25%, confirm the favourable influence of this probiotic on chicken broilers' performances.