The objectives of the current study were to investigate the effects of two probiotics (Super-CyC and Antapro-EF) and/or bioflavonoids mix (Bio-Guard) to the diet and water of broiler chickens on the growth performance and hepatic anti-oxidants parameters under practical conditions. Three hundred, one–day–old, broiler chicks (Cobb) were assigned into 6 groups. On days 21 and 42, blood, liver tissue and carcass ready to cocked weight were obtained from six slaughtered birds of each group. The present results indicated that there were significant differences in live body weights, body weight gain, feed conversion ratio and carcass ready to cocked weight by using probiotics and/or bioflavonoids supplemented groups (G3: G6). Bio-Guard treated group (G2) were recorded the highest values of the superoxide dismutase (SOD) activity and reduced glutathione levels in relationship to all groups of the current experiment. Concurrently, the level of malondialdehyde (MDA) was significantly decreased in G2 and G4, G6 relative to untreated controls group. The high efficacy of the bioflavonoids allows their use at the recommended doses and making their use in broiler nutrition acceptable, whether alone or in combination with other products as probiotics. Overall, the current study recommends use combination of bioflavonoid (Bio-Guard- in drinking water) and probiotic (Super-CyC mixed in ration) as in group 6. This synergistic effect of Bio-Guard and Super-CyC were reflected on the highest significant data of the live body weight, body weight gain, feed conversion ratio and carcass ready to cocked weight and antioxidant status of broiler chicks. |