The objective was to study the economic viability of feedlot in Lavras region, state of Minas Gerais. Forty one bulls of two genetic groups were used, being: 19 Nellore and 22 Red Norte, with initial average age of 20 months and initial average live weight of 315 ±31 kg and 321 ±30 kg, respectively. The experimental period was 112 days. The model of cost was used to evaluate the economic viability. All economic indexes presented negative results. The activity presented negative profit of R$ 6.88 and R$ 19.74/arroba for the animals Red Norte and Nellore, respectively. The negative results obtained in these conditions took place because the operational effective cost was bigger than the sale price of the arroba. The feedlot didn't present economical viability for the Lavras region, in the year of 2007. The feed efficiency has straight influence on the economical viability of feedlot.
Beef cattle production; management; production systems; rural economy
