Production and chemical composition of furachão grass (Panicum repens L.) under fertilization and different cutting ages

[摘要] -The objective of this work was to evaluate the dry matter (DM) yield and chemical composition of furachão grass (Panicum repens L.) at different cutting ages (15, 30, 45, 60 and 75 days), with and without fertilization. For the yield analysis and chemical aanalysis composition, a completely randomized block design in a 5 x 2 factorial arrangement (cutting ages and fertilization levels), with three replicates, was used. Fertilization increased DM produced and reduction in the DM contents. The crude protein (CP) contents decreased as the cutting ages increased. At 60 days, productions of 541,87 kg/ha CP and 5343.92 kg/ha DM and average neutral detergent fiber (NDF) and acid detergent fiber (ADF) contents of 69.7 and basis 34.25% in DM respectively were observed. The cutting ages affected the NDF and ADF average contents, but fertilization did not affect NDF contents. At 60 days of age the mean NDF and ADF contents were 69,70% e 34,25% on DM basis, respectively. The Ca contents were not affected by fertilization, with mean value of 0.13% in DM basis, and increased with the cutting age. The P contents reduced as the cutting ages of grass increased and the highest mean value was 0.22% on DM basis, in the without fertilization condition.

[学科分类] 兽医学

[关键词] composition;fertilization;furachão grass;composition;production     IntroduçãoA atividade pecuária na Região Norte Fluminense é predominantemente extensiva e as pastagens são a principal fonte de alimento para os ruminantes;sendo sensivelmente mais econômica em relação aos concentrados