Programação inteira mista para a simulação de um sistema integrado lavoura-pecuária com plantio direto (SILPE-PD).

Abstract

The objective is to implement a mixed integer programming (MIP) model that represents or simulates numerically the optimum operational conditions of an integrated silage-cropping system (SILPE-PD), including animal traffic. For the computational implementation of the model, data on the fitness of the live weight gain of each animal of the herd considered, in each period and in each area of the SILPE-PD (confinement, pasture and annual crop), as well as marginal net income of each culture and costs per unit of food considered. In order to test the validity of the developed mathematical model random values will be generated. To solve the problems, we use the intlinprog toolbox in the MATLAB solver. Thus, it is possible to carry out the computational implementation and verify that the program satisfies all constraints imposed, maximizes the weight gain of each animal, provides the best selection of annual crops and minimizes feed costs in the confinement area