The influences of feeding broilers on graded inclusion of sunflower meal with or without Avizyme on growth, protein and energy efficiency, carcass traits, and nutrient digestibility

Authors : Mahmoud ALAGAWANY, Adel ATTIA, Zenat Abd El Gawad IBRAHIM, Mohamed Ezzat ABD ELHACK, Muhammed ARIF, Mohamed EMAM

Pages : 168-176

View : 13 | Download : 5

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :  The present study aimed to investigate the substituting effect of sunflower meal insert ignore into journalissuearticles values(SFM); for soybean meal insert ignore into journalissuearticles values(SBM); with or without supplemental Avizyme on growth performance, protein and energy efficiency ratios, carcass traits, and nutrient digestibility of broiler chickens. A 4 × 2 factorial design experiment was conducted with four levels of SFM replacing SBM insert ignore into journalissuearticles values(0%, 25%, 50%, 75%); and two levels of supplemented Avizyme insert ignore into journalissuearticles values(0 or 0.1 g/kg diet);. Results revealed that increasing SFM substitution for SBM up to 50% was associated with an increase in body weight insert ignore into journalissuearticles values(P < 0.01);. Daily weight gain was statistically insert ignore into journalissuearticles values(P < 0.01); enhanced with increasing SFM up to 50% through 22 to 42 and 7 to 42 days of age. Feed conversion ratio improved insert ignore into journalissuearticles values(P < 0.01); in groups given SFM at 25% and 50% compared to the control. No carcass values were affected by SFM inclusion or Avizyme. The inclusion of 25% or 50% SFM increased insert ignore into journalissuearticles values(P < 0.01); protein efficiency at periods of 7?21 and 22?42 days of age. Energy efficiency ratio improved insert ignore into journalissuearticles values(P < 0.01); due to SFM incorporation at levels of 25% or 50% in all periods. The interaction effect between SFM and Avizyme was not significant on a majority of studied parameters. The digestion coefficients of crude fiber, N-free extract, and organic matter increased insert ignore into journalissuearticles values(P < 0.05 or P < 0.01); with increased levels of SFM. In conclusion, the incorporation of SFM as a substitute for SBM in broiler diets improved the growth performance of broilers. The use of SFM up to 50% without Avizyme supplementation could be recommended in broiler diets from 7 to 42 days of age.
Keywords : Sunflower meal, enzyme, broilers, growth, carcass, digestibility