Effect of Probiotic Supplementation on Productive Performance and Economic Efficiency of Arbor Acres and Cobb300 Broilers

A total of 198 day old Arbor acres chicks and 198 Cobb300 were allotted into six groups (n=66) three for each strain, group one fed commercial broiler ration with BioGaurd (0.5g/kg ration) feed additives, group two fed commercial broiler ration with Micro-BACLA (0.5g/kg ration) feed additive and last one fed commercial ration without additives and kept as control for the same strain. The obtained result showed that, Arbor acres strain was superior than Cobb300 strains in the final body weight (1970. vs. 1831.3g), total weight gain (1914.0vs. 1769.35g), total feed conversion ratio (1.72 vs. 1.78), total return per average bird body weight (27.88 vs. 25.93 L.E./bird), net return (2.97 vs. 1.80 L.E./bird) and net return/total cost ratio (11.92 vs. 7.45). Regarding to the effect of feed additives, yeast and bacteria containing probiotic (BioGaurd) improved significantly (P 0.05) total body weight (1988.67 g), total weight gain (1938.99 g), total feed conversion ratio (1.69), total return (28.14 L.E/bird), net return (3.48 L.E/bird) and net return/total cost ratio (14.11) bacterial probiotic plus enzyme mixture (Micro-BACLA) and control groups. Moreover, compared to control group, Micro-BACLA feed additives improved total body weight (1858.63 vs. g), total weight gain (1801.18 g), total feed conversion(1.78) and total return (26.32 L.E./bird), however, Micro-BACLA significantly increased total cost (24.75 L.E./bird) which in return significantly decreased net return (1.57 L.E./bird) and net return/total cost ratio (6.34 %). The interaction between strain and dietary supplement showed that within each strain yeast and bacteria containing probiotic (BioGaurd) improved productive performance and economic efficiency than bacterial probiotic plus enzyme mixture (Micro-BACLA), while Micro-BACLA increased productive performance but not affect economic efficiency parameters even when compared to control group. From our experimental work it could be concluded that Arbor acres broiler when fed commercial ration supplemented by yeast and bacteria containing probiotic (BioGaurd) had better productive performance, total return, net return and net return/total cost ratio than Arbor acres fed ration with bacterial probiotic plus enzyme mixture (Micro-BACLA) or control without feed additives. Moreover, Arbor acres broilers were better than Cobb 300 broilers in both productive performance and economic efficiency.