An experiment was carried out in the experimental aviary at the Farmer Science Experimental Center - NCA of the Federal University of Mato Grosso do Sul (UFMS) in Dourados-MS between February 21st and April 3rd, 1997. The following ration formulas for broiler feed were studied: 1 - 30% concentrated ration (CR) + 70% corn (C); 2 - 30% CR + 15% yam dry matter + 55% C; 3 - 30% CR + 15% Peruvian carrot dry matter + 55% C; 4 - 30% CR + 30% yam dry matter + 40% C. Each bird represented one experimental unit and treatments were arranged in a randomized block design, with ten replications. Yam dry matter (rhizomes and tubers) and Peruvian carrot residues (sprouts, crowns and non-commercial roots) were obtained from propagated plants at the NCA-UFMS vegetable garden and then sun dried. Birds were weighed 7, 14, 21, 28, 35 and 42 days after the beginning of the beginning of the experiment. Broiler average weight curves were characteristics to the species and growth rates were significantly dependent on treatments. Broilers fed with ration formula 3 had an average final weight of 2.1137 kg and a feed conversion of 2.1186 kg of ration/kg of broiler weight, which was 2.2%, 9.7% and 23.9% lower when compared with rations 1, 2 and 4, respectively. The amount of broiler meat available for consumption, broiled or roasted, (with cost/kg of R$ 0.7158 and R$ 0.9825, respectively) was greater in broilers fed with ration 3. Comparing qualitatively taste and fat content, it was observed that those broilers fed with ration 4 had a "yokel" broiler taste and minimum fat.
Dioscorea sp; Arracacia xanthorrhiza; vegetable residues; bird feed; costs
