Comportamento ingestivo de bezerros holandeses em pastagem de capim aruana recebendo diferentes níveis de farelo de trigo

Abstract

This study assessed the displacement patterns and diurnal feeding station of Holstein steers in Aruana pasture grass (Panicum maximum) supplemented with levels of wheat bran. The trial was conducted at the Universidade Tecnologica Federal do Paraná Campus Dois Vizinhos. The experimental area was 2.8 ha divided into 8 paddocks of 0.35 ha. Were used 16 holstein steers with average age of 12 months and 240 kg. The experimental design was completely randomized with four treatments and four repetitions, levels was: 0; 0.4; 0.8; 1.2% supplementation on body weight in aruana grass pasture. The evaluations were carried out every 21 days and lasted 24 hours divided in two days. The evaluations were: grazing (P); leisure standing (OE); leisure lying (OD); ruminating standing (RE); ruminating lying (RD); Drinking water (B); feeding in the trough (C) were recorded every ten minutes and the feeding stations, bit rate, number of chewed and rumination. The average duration of ten stations decreased due to the increase of supplementation levels, not supplemented animals showed an average of 348,05min / day, as supplemented animals showed lower average. The inclusion of levels of supplementation with wheat bran exercised linear and positive effect on the number of stations per minute and linear and negative effect on the number of bit by station and time of 10 grazing stations during the day to pasture aruana grass.