02652nam a2200457 a 450000100080000000500110000800800410001910000230006024501330008326002290021630000090044552011320045465000240158665000170161065000220162765000200164965000180166965000280168765000240171565000280173965000180176765000260178565000240181165000150183565300090185065300240185965300240188365300250190765300260193265300260195865300200198465300160200465300170202065300320203765300190206970000270208870000200211570000170213570000190215270000230217121047072023-11-16       2018    bl uuuu     u00u1 u    #d1 aSILVA, R. R. C. da  aAvaliação dos índices reprodutivos em bovinos leiteiros no Acre por meio de simulação computacional.h[electronic resource]  aIn: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 55.; CONGRESSO BRASILEIRO DE ZOOTECNIA, 28., 2018, Goiânia. Construindo saberes, formando pessoas e transformando a produção animal: anais. Gioânia: SBZ: ABZc2018  a5 p.  aThe reproductive efficiency is considered one of the main factors that interfere in the productivity of dairy herd. The objective of this work is to evaluate the impact of improvement of the reproductive indexes on the composition, gross income and efficiency of the dairy herds of Acre. Nine population structures with different combinations of lactation (800, 2,000 and 3,500 kg / lactation) and calving intervals (12, 15 and 18 months) were simulated in the SAS. The reproductive and productive data were then analyzed over a period of ten years. There was an increase in total gross income over 10 years from 9,850.83 to 37,698.42 and the additional production of three calves per cow. It was also observed a greater proportion of importance of the sale of the calf in the composition of the gross income in population structure with lower milk production, this relative importance reduced as the production increased. Thus, it is concluded that the increase in milk production associated with the reduction in the calving intervals leads to a significant increase in total gross income and economic return to the producer.  aComputer simulation  aDairy cattle  aEconomic analysis  aMilk production  aProfitability  aReproductive efficiency  aAnálise Econômica  aEficiência Reprodutiva  aGado Leiteiro  aModelo de Simulação  aProdução Leiteira  aRendimento  aAcre  aAmazonia Occidental  aAmazônia Ocidental  aAnálisis económico  aEficacia reproductora  aElaboración de leche  aGanado de leche  aRenda bruta  aRentabilidad  aSimulación por computadora  aWestern Amazon1 aCARNEIRO JUNIOR, J. M.1 aPINHEIRO, A. K.1 aSILVA, M. S.1 aRANUCCI, R. C.1 aSILVA, R. R. C. da