Authors : M.R. Ghorbani , J. Fayazi and M. Chaji
Abstract: This experiment was conducted to investigate the effect of replacement of Soybean Meal (SBM) with Rape seed Meal (RSM) using two type enzymes on broiler performance. Three hundred sixty Ross strain chickens were used in a 2x2x3 factorial arrangement with two levels of Phyzyme (0 and 500 FTU/kg diet), two levels of Grindazyme (0 and 0.17%) and three levels of RSM (0, 25 and 50% replaced to SBM protein) in a completely randomized design three replicates and 10 birds per replicate. Body Weight Gain (BWG), Feed Intake (FI) and Feed Conversion Ratio (FCR) were measured weekly. Carcass weight and carcass components weight recorded at the end of trial (day 42). The results of this experiment indicated that FI, BWG and feed efficiency of broiler were significantly (p<0.05) decreased by increasing RSM in all period of experiment. Use of RSM significantly decrease breast and abdominal fat weight of broiler (p<0.05). In grower and whole period of experiment the BWG (1353.10 vs 1285.36 g in grower and 1861.30 vs 1798.92 g in whole period) and FI (2638.28 vs 2589.13 g in grower and 4328.44 vs 3368.93 g in whole period) of broiler were significantly (p<0.05) increased by addition of Grindazyme, but were not affected by supplementation of Phytase in the diet. Exception abdominal fat weight, there was not significant effect for phytase and Grindazyme on carcass and carcass component weight. Therefore, it was concluded that NSP-degrading enzymes and Pytase may be incorporated in RSM based broiler diet for profitable production.
M.R. Ghorbani , J. Fayazi and M. Chaji , 2009. Effect of Dietary Phytase and NSP-degrading Enzymes in Diets Containing Rape Seed Meal on Broiler Performance and Carcass Characteristic. Research Journal of Biological Sciences, 4: 258-264.