02857naa a2200493 a 450000100080000000500110000800800410001902200230006002400420008310000250012524501560015026000090030652013330031565000190164865000260166765000190169365000120171265000180172465000220174265000230176465000270178765000130181465000260182765000250185365000210187865300240189965300240192365300240194765300170197165300250198865300270201365300180204065300140205865300270207265300220209965300430212165300260216465300190219065300190220970000150222870000200224370000190226377300810228215040502021-07-28 2006 bl uuuu u00u1 u #d a1806-9290 (online)7 a10.1590/S1516-35982006000200002.2DOI1 aANDRADE, C. M. S. de aGrazing management strategies for massaigrass-forage peanut pastures. 1. Dynamics of sward conditions and botanical composition.h[electronic resource] c2006 aThis study was carried out from October 2002 to December 2003 to evaluate the dynamics of sward condition and botanical composition of a mixed massaigrass (Panicum maximum x P. infestum, cv. Massai) and forage peanut (Arachis pintoi Ac 01) pasture, intermittently stocked at three daily herbage allowance levels (9.0, 14.5 and 18.4% live weight). Sward condition was characterized in each grazing cycle in terms of the pre- and post-grazing sward height, forage mass and percentage of bare ground. Botanical composition (grass, legume and weeds) was evaluated before each grazing period. Sward height and forage mass increased linearly with increasing herbage allowance (HA) levels, and higher values were observed during the rainy season. Percentage of bare ground increased primarily at the lowest HA level. Percentage of forage peanut increased throughout the experimental period, primarily in the barest and shortest swards, under the lowest HA level. In the last quarter of 2003 the legume constituted 23.5, 10.6 and 6.4% of the pasture forage mass, respectively, from the lowest to the highest HA level. These results suggest that forage peanut can be successfully associated with massaigrass, as long as the pre-grazing sward height is maintained shorter than 65-70 cm, which will prevent excessive shading to the legume. aArachis pintoi aBotanical composition aForage legumes aHybrids aMixed grazing aPlant competition aRotational grazing aComposição botânica aHíbrido aLeguminosa forrageira aPastagem consorciada aPastejo rotativo aAmazonia occidental aAmazônia Ocidental aAmendoim forrageiro aCapim massai aCompetición vegetal aComposición botánica aForage peanut aHíbridos aLeguminosas forrajeras aMixed massaigrass aPanicum maximum x P infestum cv Massai aPastoreo de rotación aPastoreo mixto aWestern amazon1 aGARCIA, R.1 aVALENTIM, J. F.1 aPEREIRA, O. G. tRevista Brasileira de Zootecnia, Viçosa, MGgv. 35, n. 2, p. 334-342, 2006.