00791naa a2200193 a 450000100080000000500110000800800410001910000200006024500920008026000090017252002580018165000100043965000120044965300180046170000180047970000190049770000160051677300650053215173552013-12-27       1994    bl uuuu     u00u1 u    #d1 aCHAMPION, P. A.  aTemporal variation in grazing behaviour of sheep and the reability of sampling periods.  c1994  aThe main objective of this experiment was to examine the within- and between-day circadian patterns of ingestive behaviour of sheep, grazing parennial ryegrass swards, using an automatic recording ystems that continuously monitored animal jaw movements.  aOvino  aPastejo  aComportamento1 aRUTTER, S. M.1 aPENNING, P. D.1 aROOK, A. J.  tApplied Animal Behaviour Sciencegv.42, n.2, p.99-109, 1994.