اثرات آنزیم ناتوزیم پلاس بر انرژی قابل سوخت و ساز و قابلیت هضم پروتئین جیره های حاوی دانه گندم و کنجاله کلزا در جوجه های گوشتی

This study was carried out to investigate the effect of Natuzyme plus enzyme on energy and protein efficiency for weight gain and metabolizable energy and protein digestibility of diets containing wheat and canola meal in broiler chickens. Seventy two day- old Arbor acres broiler were used in completely randomized design with 6 treatments and three replicates for starting (1-21 d) and grower (22-42 d) periods. Dietary treatments were 1. Corn- soy based diet (control), 2. Diet containing 30% wheat, 3. Diet containing 30٪ wheat +10٪ canola. These diets supplemented with enzyme (Natuzyme plus, 0.350 g/kg) to provide 6 experimental diets. Results showed that Natuzyme Plus supplement significantly improve energy and protein efficiency for weight gain (P<0.05). Enzyme addition to diets decreased the gut viscosity and increased metabolizable energy and protein digestibility of diets. The resulted of this study indicated that the supplementation diets containing wheat grain and canola meal increased the metabolizable energy and protein digestibility of diets and lead to improvement in energy and protein efficiency for weight gain, thus, it is recommended to supplement diets containing wheat grain and canola meal by plus natuzyme.