This experiment was conducted to determine the performance and carcass yeld of broilers fed diets based on increasing whole rice meal levels (WRM), with or without multienzyme complex supplementation. Nine hundred and sixty Cobb chicks, males and females, were allocated in a completely randomized design with eight treatments and six replicates with 20 birds. Four levels of WRM (0%, 10%, 20% and 30%), with and without supplementation of a multienzyme complex composed of protease, pentosanase e phytase enzymes were used in the experiment. The diets had the same levels of energy, protein, calcium and phosphorus in all the treatments. With the use of increasing levels of whole rice meal, there was significant reduction (P<0.01) in the feed intake, body weight and weight gain of the bird, however, the feed: gain ratio was not affected. The breast weight, breast yeld, carcass weight and thigh weight were also affected significantly (P<0.01) by levels of addition of whole rice meal in the diet. The use of enzymes did not influence none of the evaluated parameters significantly (P>0.05), however, in the diets supplemented with enzymes, the bio-economic index was 1.4% higher than the diets without supplementation.
carcass; performance; enzymes; whole rice meal; broilers
