The aim of this study was to determine the effect of diet supplementation with propolis and/or bee pollen on the performance indicators of broilers. This experimental study was conducted on 200 Ross 308 broilers equally distributed by sex and divided into five groups. Throughout the whole study the control group of chickens was fed feed mixture. Feed mixture fed to the experimental groups of chickens contained additives (propolis and/or bee pollen, each supplement separately or in combination in a certain proportion). The average values of broilers body weight were significantly higher on 7th (p=0.001), 14th, 21st, 28th, 35th (p<0.001) and 42nd (p=0.002) day of feeding in the experimental groups of broilers compared to the control group. The average values of broilers weight gain were significantly higher on 1st (p<0.001), 2nd (p=0.002), 3rd (p<0.001), 4th (p=0.029) and 5th (p=0.009) week of feeding in the experimental groups of broilers compared to the control group. This study has undoubtedly shown that propolis and bee pollen have significant positive effect on performance indicators of broilers.; Cilj ovoga istraživanja bio je ispitati učinak hranidbe uz dodatak propolisa i/ili pčelinjega peluda na proizvodne pokazatelje brojlera. Ovaj pokus proveden je na 200 brojlera provenijencije Ross 308 ravnomjerno raspoređenih po spolu, koji su bili podijeljeni u pet skupina. Tijekom cijeloga pokusa kontrolna je skupina brojlera bila hranjena krmnom smjesom, dok su pokusne skupine brojlera hranjene istom krmnom smjesom uz dodatak propolisa i pčelinjeg peluda, svakim dodatkom zasebno ili u kombinaciji u određenome omjeru. Prosječne vrijednosti tjelesne mase brojlera bile su znatno više 7. (p=0,001), 14., 21., 28., 35. (p<0,001) i 42. (p=0,002) dana tova u pokusnim skupinama brojlera u usporedbi s kontrolnom skupinom. Prosječne vrijednosti prirasta bile su znatno više 1. (p<0,001), 2. (p=0,002), 3. (p<0,001), 4. (p= 0,029) i 5. (p=0,009) tjedna tova u pokusnim skupinama brojlera u usporedbi s kontrolnom skupinom. Ovo istraživanje je nedvojbeno pokazalo kako propolis i pčelinji pelud imaju značajan pozitivan učinak na proizvodne pokazatelje brojlera.