Viabilidade econômica da terceira ordenha em sistemas de produção de leite com ordenhadeira tipo circuito aberto

Abstract

This study aims to analyze the economic viability of the third milking in systems of milk production using milking mechanics, of the type open circuit, aiming to provide technical and farmers information to help in the decision-making process. Specifically intend a) to estimate the cost of a milking; (b) to estimate, by means of simulation, the cost of the third milking; (c) to develop a mathematical equation that allows estimating the minimum amount of milk produced in two milkings, from which it will be economically feasible to hold the third milking. The data were collected in three systems of milk production, in a routine of two milkings per day, with three collections of data in each one , a total of nine. Considering the average data, it would be feasible to hold the third milking if the productivity of daily average lactating cows would be equal or greater than 38.13 kg of milk. The mathematical equation developed may help the technician and the farmer estimate the minimum quantity of milk produced by a cow in two milkings, from which it will be economically feasible to hold the third milking, with precision and considerable speed.