CACILDA BORGES DO VALLE, CNPGC; VALERIA PACHECO BATISTA EUCLIDES, CNPGC.2026-07-07http://hdl.handle.net/123456789/441757Animal production in the tropics is done mostly on native and cultivated pastures. Brazil is predominantly tropical and is the fifth largest country in the world with about 20% of its area covered by pastures (174 million ha). It has a natural aptitude for livestock production also as climate and topography are concerned. Soils however, are acid and poor, with more than 90% dystrophic (soil base saturation less than 50%) in Central Brazil, the most significant region for livestock production. The majority of the cattle of 209 million head is on pastures, mostly of grasses and planted to a few Brachiaria and Panicum cultivars, characterizing extensive monocultures.1 CD-ROM.p. 460openAccessBrachiariaCapim AndropogonLeucaenaPanicum MaximumPastagem CultivadaProdução AnimalAnimal welfareArachisTropical pasturesResumo em anais e proceedings