GRAZING INTENSITIES OVER IMPROVED NATURAL PASTURE

This essay was conducted over an improved native pasture with the introduction of exotics species (white clover, red clover and birdsfoot trefoil) plus fertilization and lime application in Água Doce-SC, between June of 2004 and May of 2005. The aim of the evaluations was to determinate the influence of two grazing intensities over the animal production. The treatments were composed of two intended forage mass (FM): 2000 e 1000 kg of Dry Matter (DM) ha-1, for the High Mass (HM) and Low Mass (LM) under continuous grazing with variable stocking rate. However, the real FM values were 1875 and 988 kg of DM ha-1 for HM and LM (P0.05) for Stocking Rate (SR), the values were 309 and 484 kg of Live Weight (LW) ha-1 for HM e LM, respectively. There was significant interaction between the treatment and period (P0,05) para a carga animal (CA), os valores foram de 484 e 309 kg de PV ha-1 para MB e MA, respectivamente. Houve interação entre tratamento e período (P<0,05) para o ganho médio diário (GMD), os valores foram de 0,346 e 0,217 kg dia-1 para MA e MB, respectivamente. Houve interação significativa entre tratamento e período (P