THE EFFECT OF DIFFERENT PROBIOTIC STRAINS ON FATTENING AND CARCASS PARAMETERS OF BROILER DUCKS

The aim of this work was to verify the effect of different probiotic strains applied through a drinking water source to fattening and carcass parameters of broiler ducks. Fattening experiment was realised in half-operating conditions of experimental basis of Department of Poultry Science and Small Animal Husbandry in three-floor cage technology. Totally 90 broiler duck were divided to three groups. Experimental group 1 (n=30) received probiotic strain Lactobacillus fermentum CCM 7158 with concentration of 1x10(9) colony forming units (CFU) in drinking water daily addition of 0.90 g day 1 to day 56 of fattening. Experimental group 2 (n=30) received probiotic strain Enterococcus faecium M 74 with concentration of 1x109 colony forming units (CFU) in drinking water daily addition of 0.45 g day 1 to day 56 of fattening. The control group of birds (n=30) received water without any probiotics. The supplementation of probiotic strains Lactobacillus fermentum and Enterococcus faecium no significant affected (P >= 0.05) final body weight, feed consumption and mortality of broiler ducks. From carcass parameters, we recorded statistically significant (P<0.05) reduction in weight of abdominal fat of broiler ducks for application of tested probiotic strains.