Resumen de Efecto del nivel de suplementación de enzimas sobre los rendimientos productivos de conejos en crecimiento
R. Crespo, C. Alonso, M. Marco, Nuria Nicodemus Martín
The aim of this work was to study the effect of different supplementation doses of a multi enzyme complex on growth performance and carcass characteristics of growing rabbits. A total of 360 kits were weaned at 34 days of age, housed in individual cages that were randomly assigned to five treatments. A basal ration was formulated (CP: 15.8%; Starch: 16%; NDF: 31.6% CE: 4319 Kcal/kg), which was increasingly supplemented by a commercial enzyme complex (100, 200, 400 and 800ppm) with an activity of 100 XU/g pentosanase, 40 CMC/g of cellulase, 30 FAU/g amylase, 100 XU/g of xylanase, 700 HUT/g of protease, 4000 AJDU/g of pectinase and 200 BGU/g of -glucanase. Feed intake and the animal weight from 34 to 48 and from 49 to 60 days of life were controlled. At the end of the fattening period, rabbits were slaughtered and the carcass weight and the weight of the entire digestive tract, liver, full stomach, empty stomach, full cecum and empty cecum were measured. In the first fattening period, enzyme supplementation improved linearly (P<0.05) the conversion rate (CR), without affecting the intake (DFI) or average daily gain (ADG). In the second phase, both the CR and ADG varied quadratically (P<0.05) with the enzyme complex supplementation, being the optimum level for both: 400 ppm/kg.
