Resíduo lipídico da produção de biodiesel proveniente do óleo de dendê (elaeis guineensis) na alimentação de ovinos - digestibilidade aparente e comportamento ingestivo

Abstract

This study sought to evaluate the effect of including the processing of waste oil biodiesel palm (Elaeis guineensis) in the diet on digestibility and feeding behavior of lambs. Twenty-five male sheep, mixed breed, neutered, with average live weight of 20kg, submitted to diets with 5% supplemental lipid from increasing levels of substitution 0, 25, 50, 75 and 100% palm oil waste by palm oil biodiesel. The animals were distributed in randomized blocks, with the weight of the animal blocks with five treatments and five replications. The experimental period was twenty-two days, fifteen days adaptation to the diets, two days of adaptation to external indicator of digestibility, purified and enriched Lignin (LIPE), and five-day fecal collections. The experimental diets consisted of 31% grass hay Massai (Panicum maximum cv. Massai) 64% concentrate, from corn and soybean meal and 5% of fat source (palm oil and / or residue from biodiesel). Diets were fed in two meals daily in the morning (7am) and late (16h). The ingestive behavior was determined by visual observation, occurred during 24 hours at intervals of 5 minutes, to determine the time spent eating, ruminating and resting. The use of biodiesel in palm oil waste as a source of significant results presented lipid intakes of dry matter (DM), organic matter (OM), ether extract (EE) and crude protein (CP), as well as the digestibility of EE. The increasing levels of substitution of biodiesel residue did not influence (P>0,05) in time spent eating, ruminating and resting. Even as did not alter the efficiencies of ingestion and rumination of dry matter (DM) and neutral detergent fiber (NDF). No effect of the inclusion of biodiesel residue on intake and digestibility of NDF and ADF.