Rentabilidade do uso de tecnologias em sistema de produção de leite com vacas F1 Holandês X Zebu

Abstract

Based on zootechnical research results related to technologies in milk production systems with F1 Holstein x Gir cows, a study with simulated data from a hypothetical system of milk production was carried out to check the profitability of the technologies. The system of milk production with F1 Holstein x Gir cows with the use of in natura sugar cane (Saccharum officinarum L.), during the dry season, is the alternative with better profitability compared to the use of corn silage (Zea mays L.) and sorghum silage (Sorghum bicolor). It showed a profit of 26.07 % and a yield of 9.80 %, as computed with the remunerations with land, on invested capital and the working capital. The managements of taming of primiparous cows during prepartum and monitoring the live weight at calving, four milking in early lactation and the use of milk quality, as differential for remuneration, are profitable technologies. The acquisition of replacement female, 10 months years old and the change in the birth and mortality rates of calves in the herd are economically and financially viable but, under current conditions, are not viable alternatives, because their results are inferior to achieved ones with hypothetical system for producing milk. The results showed that dairy farming is profitable, so the "milk" is a good dealing.