Postmortem metabolism is a widely studied topic. Many scientific and technological advances have led to improve animal welfare, feeding strategies, slaughter processes, in consequence results in improvements in meat quality for consumers. The aim of this project is to evaluate the effect of finished systems on postmortem metabolism in cattle. This project has two stages, in the first will be to analyze the data of post-mortem metabolism and meat quality of the experiment entitle: "Effect of the finishing system, gain rate and slaughter criteria on meat quality characteristics of Angus x Nellore cattle". The experiment was carried out in Brazil using a completely randomized design in a 2 x 2 x 2 factorial arrangement, with two finishing systems (pasture and confinement), two gain rates (high and low) and two slaughter criteria (slaughter weight and time on feed). The analysis, in vitro glycolysis and meat quality (softness, color, pH, cooking loss in aging times), had already been performed. The data analysis and interpretation will be carried out with our collaboration in USA to start the writing of scientific article. In the second stage, studies will be carried out in United States, to evaluate the postmortem metabolism of cattle in different finishing systems. The main analyzes that will be performed are the in vitro glycolysis to evaluate pH, glycogen, glucose, glucose-6-phosphate and lactate. In addition, to that, will be performed western blot analyzes of some enzymes that act on the glycolytic pathway and on postmortem metabolism.
News published in Agência FAPESP Newsletter about the scholarship: