Bioeconomic evaluation of nelore females in the water period

The objective of this study was to carry out a bioeconomic evaluation of Nelore heifers supplemented in the rainy season, through zootechnical and financial indicators of the production system. The experiment was carried out at Rancho Gratidão, in the municipality of Ariquemes, Rondônia. The experiment included 90 Nelore heifers, with an initial average body weight of 270 kg, divided into three different batches. Three weighings were measured, beginning, middle and end, from which the following variables were obtained: initial weight, final weight, total weight gain, average daily gain. The experiment had three treatments: Dense Mineral Supplement (T1), Protein Supplement (T2), and Protein and Energy Supplement (T3). Three experimental paddocks were made available for rotation of the animals every 15 days. A completely randomized design was carried out through analysis of variance, where the means were compared using the Tukey test at 5% significance. There was no statistical difference (P>0.05) between the variables studied. For decision making, the Bioeconomic analysis was taken into account. According to the costs involved, T1 had the lowest cost and T3 had the highest cost involved. Thus, for the arroba produced, there was less production cost for T1, whose return on invested capital had more return than the others.