The economical profitability and viability of the implantation of a milk production system in free stall were evaluated. A technical-market analysis was done to define the necessary investment as well as to determine the costs of each production factor. A production model with 100 lactating cows averaging 2,595 liters of daily production was considered. The total monthly operational cost was R$27,781.39 showing that nutrition is the variable with higher relevance (62.7% of the cost). For the monthly gross income a value of R$43,817.50 was obtained and, consequently, the monthly net income (NI)was R$16,030.11. A 12.2% profitability per year from NI rendering a deficit net value of R$131,627.39. Considering the estimated prices it is concluded that the proposed model was economically unfeasible.
milk yield; free stall; profitability; simulation
