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vol.42 issue11Genetic variability in Mediterranean buffalos evaluated by pedigree analysisProductivity and nutritive value of mixed pastures with different legume species author indexsubject indexarticles search
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Ciência Rural

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AZEVEDO JUNIOR, Ricardo Lima de et al. Productivity of pastures-based systems mixed to forage peanut or red clover. Cienc. Rural [online]. 2012, vol.42, n.11, pp.2043-2050.  Epub Sep 25, 2012. ISSN 0103-8478.

The objective of this research was to evaluate of tree pasture-based systems (PS) with elephantgrass (EG) Pennisetum purpureum Schum., cv. 'Merckeron Pinda' + spontaneous growing species (SGS), annual ryegrass (RG) Lolium multiflorum Lam., cv. 'Comum', for PS1; EG + SGS + forage peanut (FP) Arachis pintoi Krap. e Greg., cv. 'Amarillo', for PS2; and EG + SGS + RG + red clover (RC) Trifolium pratense L., cv. 'Estanzoela 116', for PS3. EG was planted in lines with a distance of 4m each one of them. Ryegrass was sowed between rows of EG during the cool-season; red clover was sowed and the forage peanut was preserved on respectively treatments. Holstein cows receiving 5.5kg daily-1 complementary concentrate feed were used. The dry matter daily accumulation rate (DMA),disappearance of forage mass (DFM),dry matter disappeared based on 100kg of live weight (DMD),total dry matter production (TDM), botanical composition and structural component of EG were evaluated. The experimental design used was completely randomized with tree treatments (SF) and two replicates (paddocks) in incomplete split-plot time (grazing cycles). Nine grazing cycle were performed during the experimental period (341 days). The average values of DMA, DFM, DMD and TDM were 53.16kg ha-1, 36.13%, 2.77kg of dry matter per100kg of liveweight and 17.80t ha-1, respectively. SGS parameter increased significantly over in the PS1. Considering the stocking rate the PS3 showed a better performance.

Keywords : Arachis pintoi; dairy cattle; Lolium multiflorum; Pennisetum purpureum; rotational grazing; Trifolium pratense.

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