Effect of replacing yellow corn with barley supplemented with B-glucanase enzyme on broiler performance and nutrients digestibility

mujahed omar lutfi bushwereb, Nadia Elshawesh, Omran Algariany, Kalid Ganghish

Abstract


An experiment was conducted to study the performance and nutrients digestibility of broilers chicks fed diets in which yellow corn was replaced with barley   and barley without supplemented with   a commercial digestive enzymes  β-glucanase xylanase  ( Lohmann  LTG – GMBH  Germany) at the rate of 1kg enzyme per 1000Kg diet. A total of 720 day-old broiler chicks were randomly divided into 9 treatments of four replicates each comprising 20 chicks reared in battery cages under controlled environment condition until the age of 56 days. The control group was fed yellow corn-based diet (60% yellow corn , 0 % barley). Yellow corn  was replaced by barley making  8  experimental diets were prepared using  25, 50, 75 and 100% barley and 25, 50, 75 and 100%  barley  supplementation  with    β-glucanase xylanase.   Feed and water were provided ad-libitum. Feed intake and gain-feed ratio  was significantly (p<0.05) improved in chicks fed β-glucanase xylanase supplemented diets compared to non-supplemented diets. Broiler chickens in the enzyme-supplemented groups had better body weight gain as compared to those without supplementation.  Barley  in all levels supplemented with enzyme gave a significantly (p<0.05) improvement in apparent protein and fat apparent digestibility over non supplemented barley, the results revealed  no  significant differences over the corn basic diet. Dramatically, a significant (p<0.05) improvement  in  the digestibility of fat and fiber in feeding supplemented barley with β-glucanase  in comparison with yellow corn diet or with non supplemented barley diet.  Regarding, NFE    diets of barley replacer by 50, 75 and 100%   supplemented with β-glucanase  enzyme  revealed a significant  (p<0.05)  improvement over  the non supplemented.   Results from this experiment suggest that enzyme supplementation can improve nutritive utilization of barley broiler diets. Broiler chicks can grow faster and more efficiently on a diet containing fiber degrading enzymes than on a diet without enzymes.

Key words : β-glucanase  , broiler, barley, performance and nutrient digestibility

 


Keywords


Key words : β-glucanase , broiler, barley, performance and nutrient digestibility

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