Influence of different prebiotics and mode of their administration on growth, carcass traits and meat quality in broiler chickens

The final number of chickens/chicken house, the mortality recorded at 1st week of life and at the end of the experiment, BW/chicken house, stocking density (kg/m2), feed intake, feed conversion rate (FCR) and European Broiler Index were not different (P > 0.05) among the 3 experimental groups. However, treatment with BI and DN were associated with slight increases (P > 0.05) in average BW and a slight reduction (P > 0.05) in the FCR compared to control group. Slaughter traits results showed that chickens from treated groups had significantly higher BW, carcass weight, carcass yield and breast muscle weight than those of control ones. Males had significant higher slaughter traits compared to females, except for breast muscle yield. Meat from in ovo treated birds displayed a higher lipid oxidation levels compared to that from untreated ones along the entire storage time. Overall, the results obtained at the end of this study have provided interesting information for an effective application of the bioactives to be used in the future in breeding industry, with significant and positive impact on animal welfare and public health.