Journal of Fisheries & Livestock Production
Open Access

Abstract

Canola meal (CM) is an important ingredient in the feeding poultry. However, CM has anti-nutritional factors that induce reduction on nutrient digestibility. Exogenous enzymes in poultry diets could improve the nutritional value of some vegetable feedstuffs. The objective of this study was to evaluate the apparent total tract digestibility (ATTD) of dry matter (DM), crude protein (CP), apparent metabolizable energy (AME), ash, calcium (Ca), phosphorus (P) and neutral detergent fiber (NDF) in CM with or without multicarbohydrase (MC) and phytase (Phy) supplementation using broiler chickens. Day-old male broilers (245) were allocated to five treatments in a randomized complete design. Each treatment had seven replicate cages with seven broilers per replicate. Reference corn diet was replaced by 30% of CM on ATTD determination. A completely randomized experimental design with a 2�?�?2 (with or without MC and Phy) factorial treatment arrangement was used to determine the effects of enzymes. Data were submitted to variance analysis using SAS 9.2. The ATTD of DM and AME improved (P<0.05) with isolate enzymes addition. Interaction (P<0.05) was observed between enzymes on ATTD ash, CP, Ca and P and a trend (P=0.06) for NDF digestibility. For all nutrients and AME, the treatments with enzymes showed higher digestibility coefficients than the control diet. The results confirmed that MC and Phy combination in CM produces greater benefit for broiler chick compared to isolated enzymes.

Biography

Email: julio@zootecnista.com.br