Effect of cattle grazing on native forage biomass yield in extensive grazing systems of southern Bolivia
Boliviano‐Tucumano mountain forests in Southern Bolivia are used for grazing Criollo cattle.Great parts of these grazing areas are located in the nature reserve Parque N atural de Fauna y Flora T ariquía.Near the villages,grazing pressure can be high, especially during the rainy season, whereas remote forests are only utilized for grazing in the dry and pre‐humid season.Grazing and browsing might affect biomass production of specific plant species in the Boliviano‐Tucumano forest, however, this has not been investigated.The objective of this study was to determine the effect of different grazing intensities of Criollo cattle on forage biomass production during the grazing period and in the subsequent year, and the contribution of different vegetation types to the overall forage supply.
animal nutrition defoliation grazing intensity silvopastoral system Criollo cattle
H.Alzérreca M.Miranda S.Marquardt M.Kreuzer A.C.Mayer
Herbario Nacional de Boliv ia,La Paz,Boliv ia ETH Zurich,Institute of Animal Science,Zurich,Switzerland
国际会议
呼和浩特
英文
2008-06-29（万方平台首次上网日期，不代表论文的发表时间）