01630naa a2200205 a 450000100080000000500110000800800410001910000200006024500920008026000090017252011030018165000100128465000130129465000150130765300090132265300120133165300150134370000200135877300460137817858332017-04-06       1976    bl ---       0--  u    #d1 aSMITH, R. C. G.  aDeferred grazing of mediterranean annual pasture for increased winter sheep production.  c1976  aDeferred grazing of Mediterranean annual pasture involves the removal of sheep while the pasture re-establishes following the break of season, to allow a more rapid development of leaf area-and hence growth rate-of pasture during the ensuing winter months. Reported animal production responses to this practice have been variable, threfore a pusblished mathematical model of a deferred grazing system was used to explore some of the reasons underlying this variation. Computer simulation was used to predict the effects of stocking rate, lenght of deferment and initial plant density. The results suggest that the response to deferment is markedly dependent on all three factors. The combinations of stocking rate and lenght of deferment maximising the response to deferred grazing were found to vary widely, depending on initial plant density and the economic weighting given to the value of liveweight produced. it was concluded that future experimentation needs to critically examine the interaction between these three factors if profitable response situation are to be defined more accurately.  aCabra  aPastagem  aProdução  aGoat  aPasture  aProduction1 aWILLIAMS, W. A.  tAgricultural Systemsgv.1, p.37-45, 1976.