Comportamento alimentar de cabritos mestiço F1 Boer x SRD terminados em pastagem nativa com diferentes níveis de suplementação.

Abstract

The experiment was accomplished in the Nucleus of Research for Development of the Semi-arid (NUPEARIDO) of the Federal University of Campina Grande, in Duck-PB. The experimental area was of l,5ha. 24 bovid mestizo males were used Boer Fl x SRD, servants in native pasture, with alive weight (PV) of 15kg and 120 days of age distributed in a delineamento in blocks casualizado with four treatments (0, 0,5, 1,0 and 1,5% of PV in MS of concentrated), with four schedule and six repetitions (animals), subdivided in the time. The experimental period was of 84 days, preceded of 14 days of adaptation. The alimentary handling consisted of pastejo from 8:00 to 16:00h, moment in that you/they were led to the cages for the suplementacao. The behavior of the animals was influenced by the suplementacao levels, with the animals suplementados with 1,5% less time passing pastejando and more time ruminating and in leisure when compared with the other treatments. As for the schedule, the time of larger pastejo intensity was during 10:00 at 14:00h o'clock and smaller from 14:00 to 16:00h, being the largest time of leisure from the 8:00 to the 10:00h and 14:00 to the 16:00h, and the smallest observed time of the 10:00- 14:00h. The time of rumination increased in two o'clock (14:00-16:00h) that preceded the suplementacao. During the month of August it was observed a smaller time of pastejo of the animals, differentiating of the times of July and June that were similar amongst themselves. There was not effect of the month for time of rumination. As for the leisure it was verified that the permanence was larger during the month of August and with the smallest time observed in the month of June. The percentile expense with pastejo didn't differ among the treatments with 1,0, 0,5 and 0,0% of PV, being larger than obtained him/it by the animals that received 1,5%; it was observed that the percentile smallest in pastejo went from the 14:00-16:00h to the animals suplementados with 1,5%. The percentile expense with rumination for the animals suplementados with 1,5% was larger in relation to the other treatments. The animals no suplementados introduced a percentile minor of rumination in relation to the others just in the schedule from 14:00 to 16:00h. THE percentile expense in leisure for the animals of the 1,5% of suplementacao was larger than observed them for the other suplementacao levels. Independently of the suplementacao level the animals grazed on more from 10:00 to 14:00h and more time passed in leisure from 8:00 to 10:00h and of the 14:00 to the 16:00 h, and they dedicated less for pastejo in the month of August.