Estudo da exclusão das categorias de recria fêmeas em um rebanho de cria de bovinos de corte em uma propriedade rural em Dom Pedrito-RS

Abstract

Brazilian’s livestock, despite of occupying the second place in regards of the number of animals and bovine meat exportation, it stays quite behind developed places like United States when it comes to productivity, with much smaller discard rates, emphasizing the importance to search an increasing of those rates so that livestock becomes a more profitable activity to the producer. Aiming an increase in productivity four systems were simulated based on real data obtained in a property located in the city of Dom Pedrito – RS, where the replacement categories were excluded with the sale of 100% calfs by weaning age, and the replacement and sales of the discard cows were made in different ways, with the goal to analyze the economic viability of those four simulated systems in relation to the current system, with weaning rates of 39% and 70%. When the weaning rates got to 39%, system D presented a 7% growth in the property’s gross income, yet, systems A, B and C presented negative financial impact in relation to the current system. When the weaning rate reached 70%, all 4 simulations had negative financial impact, nonetheless the weaning rate increase generated a significative in the gross income, in relation to the same system when the birth rate was 39%. Based on the data generated in this work, it is possible to observe that the way to increase gross income is better related to the weaning rate, and the calf’s weight by the weaning, but to increase those rates would be necessary a load adjustment and a better nutritional contribution to the cows.