Avaliação da manipueira em substituição ao milho na dieta de ovinos

Abstract

This study aimed to evaluate the effects of levels of substitution of corn by manipueira (0, 25, 50, 75 and 100%) in the diet of sheep on nutrient intake, ingestive behavior, performance, blood parameters, and carcass characteristics and economic analysis. Were used forty male sheep, not castrated crossbred Santa Ines, distributed in a randomized block design. The intakes of dry matter, organic matter, total carbohydrates and non-fibrous, final body weight, total weight gains and daily blood chemistry profile match, hot carcass weight and cold, empty body weight, carcass weights midnight left leg and loin presented quadratic with maximum point and time spent in idle and feed conversion with minimum point. The intakes of crude protein, ether extract and neutral detergent fiber, efficiencies intake of dry matter and neutral detergent fiber and rumination of dry matter and neutral detergent fiber, alkaline phosphatase activity, hot carcass and commercial area ribeye, weights of neck, shoulder, ribs and loin yield hacksaw and linearly decreased blood chemistry profile and creatinine and cholesterol and cooling loss increased linearly with the substitution of corn by manipueira. In the economic analysis the level of replacement was 25% which provided greater viability.