Terminação de novilhos de corte em confinamento com alto grão

Abstract

The search for new tools that help the producer of Rio Grande do Sul the face periods of scarcity of forage and compete with agriculture that increasingly growing. Thus as the high land values, even as a result of use land for agriculture as well as in periods where the price of meat is favorable and the period for the offseason to finishing beef steers. Grows increasingly the use of feedlot in the state has traditionally creating cattle in the field. Based on that this work has as objective to evaluate the performance zootechnical of steers of different groups genetic in feedlot. The experiment was conducted in a property inside the municipality of Dom Pedrito –RS, using 47 beef, being 26 pure European (Bos taurus taurus) and 21 crosses Zebu (Bos taurus taurus x Bos taurus indicus), kept in feedlot the basis of grains, with average initial weight of 298.3 ± 31.60 kg, divided into paddocks sky open. The steers received diet two times a day and the first in the early morning and the second in the afternoon. The animals were weighed six times during the experiment what possible estimating the weight gain for periods between weighings and average daily gain for each animal. We analyzed the performance of groups genetic and production performance of kept in feedlot steers. The steers finished in confinement no significant difference for majority of variables analyzed in the work, and final live weight (FLW) with (P=0.11), initial live weight (PVI) with (P=0.22), cold carcass weight (CCW), with (P=0.30) and carcass yield (RC) with (P=0.31). Having only presented with values significant difference (P<0,005), where the variables conformation European steers had a mean1.27±0,45 and cross-mean 1.33±0,48. Since for finishing the european steers had mean 2.88±0.51 and cross steers mean 2.71±0,56. Thus showing that much steers european not present as the cross big significant differences, may both groups genetic are finished in feedlot.