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Analyzed by means of simulation, the effect of managements of taming primiparous during antepartum and higher body weight at calving profitability of dairy farming of milk production system. During the rainy season, in the summer season, cows were kept on pastures and, during the dry season, were confined with use of cane sugar in natura enriched with urea and ammonium sulfate. The reference zootechnical was composed herd of F1 Holstein x Gir cows of the Experimental Farm Felixlândia (FEFX) of the Agricultural Research Corporation of Minas Gerais (EPAMIG), located in the municipality of Felixlândia-MG, central region of the state. The inventory and expenditure, revenue and other data were registered on COST BOVINE MILK 1.0 software, to obtain profitability analysis. The use of managements taming primiparous during antepartum and higher body weight at calving improves the profitability of a system of milk production with F1 Holstein x Gir cows.

Efeito dos manejos de amansamento de primíparas no pré-parto e do maior peso vivo ao parto na rentabilidade da atividade leiteira