The assay was carried out to determine the effect of phytase supplementation on performance of broilers from 1 to 21 and 1 to 40 days of age. Twelve hundred and fifty male broilers (Ross) were distributed in a randomized experimental design, with five treatments, 10 repetitions and 25 birds per experimental unit. The treatments consisted of evaluating the phytase supplementation in diets with reductions in nutritional levels, compared with the positive control. The nutrient contents in negative controls one and […]

An experiment was conducted to evaluate the performance and composition of litter, tibia, liver and excreta of broiler chicks at different phases using different levels of available phosphorous (Pd) and the enzyme phytase. One thousand and two hundred one-day-Cobb-male chicks were used, distributed in a randomized complete design, using a 4 × 3 factorial arrangement, consisting of four available phosphorus levels and three phytase levels – 0, 500 and 1,000 FTU phytase/kg of diet with four replications of 25 birds […]

An experiment was carried out to evaluate the use of residue mango (Mangifera indica L., var. Ubá) meal (RMM) in diets of broiler chickens from 1 to 42 days old. A total of 600 male Ross chicks were distributed to a completely randomized design, with 5 diets and with 6 repetitions of 20 birds each. Diets consisted of the inclusion of 0.0, 2.5, 5.0, 7.5 and 10.0% of RMM in diets based on corn and soybean meal. Feed consumption, average […]