Livestock today is one of the incomes of people of different economic strata, to make it profitable is necessary to know the animal response for their type of food, for this we conducted a study where our goal was to evaluate the response of a group of cows in production on the farm Irquis of the University of Cuenca, in its content may observe the different requirements of cattle, which analyzed the animal response and emission of enteric methane in relation to production, structure and quality of the pasture.