Valor nutricional de coprodutos da produção de etanol de milho para suínos

Abstract

The possibility of co-products of use in animal feed allows add considerable value in the production of animal protein from low cost products. Thus, it is necessary to carry out studies that characterize the nutritional value of DDGS obtained from corn ethanol production, produced in Mato Grosso, in feed for pigs and the digestibility, performance and quality of meat and carcass of the animals fed increasing levels of inclusion of corn DDGS. In this sense, in chapter 1 was conducted a literature review to contextualize the processing of ethanol to the production of DDGS as well as their employability in swine diets in the various categories. In chapter 2 and 3, it was reported to conduct an experiment in order to determine the value of DDGS nuticional through the use of the total collection method of feces and urine, and the indicator method with use of chromic oxide. In Chapter 4 it was reported that the experiment evaluated the performance and the meat quality and carcass pigs in growing and finishing. In experiment 1, it was evaluated the digestibility of ingredients with different methodologies. Eight pigs used catsrados males. The DDGS had 3,691 kcal / kg and 3,213 kcal / kg of metabolizable energy determined by the total collection method and indicator respectively and digestible energy of 3,739 and 3,401 kcal / kg, respectively. The increasing inclusion of DDGS affect animal performance, and the value of DE and, when administered to pigs at the early stage. digestibility coefficient values by the total collection method of DM, OM, EE, MM and NDF was 76.78; 76.51; 82.71; 69.13; 88.36; 82.18%, respectively. In experiment 2, the animals were fed diets containing corn DDGS at levels of 0, 20, 40, 60%. The digestibility coefficients of DM, OM, EE, MM and NDF were negatively affected with increasing levels of DDGS. The indicator collection method with chromic oxide underestimated all variables in this experiment compared to the total collection method. In experiment 3 animals were fed diets containing 0, 10, 20, 30% DDGS. The inclusion of 30% DDGS did not affect animal performance, however levels greater than 19.42% DDGS decreased feed intake. The meat and carcass quality parameters were affected by increasing levels of DDGS compared to the control group. Only the red content (a *) of meat was lower in increasing levels of DDGS.