efeito da mistura da planta de girassol (helianthus annuus l.), durante a ensilagem do capim-elefante (pennisetum purpureum schum.) no valor nutritivo da silagem effect of the mixture of the sunflower plant (helianthus annuus l.) during the ensiling with the elephantgrass (pennisetum purpureum shum.) on nutritive value of silage

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2002
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Abstract
O girassol foi misturado ao capim-elefante (Pennisetum purpureum Schum) na ensilagem. A colheita do capim-elefante foi realizada manualmente após 70 dias do corte de uniformização, à altura de 10 cm da superfície do solo. Para confecção da silagem, foram utilizados os híbridos de girassol M-742 e M-92007. As misturas capim-elefante e girassol foram feitas nas seguintes proporções de matéria verde: 100 e 0%, 75 e 25%; 50 e 50%; 25 e 75%; 0 e 100% de capim e girassol, respectivamente. As plantas foram picadas mecanicamente em partículas de 2,0 a 3,0 cm de tamanho, ensiladas por 30 dias, em silos de "PVC" de dez centímetros de diâmetro e quarenta centímetros de altura. Foram avaliadas as porcentagens de matéria seca (MS), proteína bruta (PB), extrato etéreo (EE), fibra em detergente neutro (FDN), digestibilidade in vitro da matéria seca (DIVMS) e valores de pH das silagens. O delineamento experimental empregado foi o inteiramente casualizado, com quatro repetições. Concluiu-se que as silagens de capim-elefante com mistura da planta de girassol apresentaram maiores porcentagens de MS, PB, EE e valores de pH, aumentos na DIVMS e menor porcentagem de FDN na matéria seca com o aumento dos níveis de substituição.
A mixture sunflower and elephant grass has been used for ensiling. Elephant grass was harvested manually 70 days after a plot leveling a height of 10cm from soil surface. For silage making, the sunflower hybrids M-742 and M-92007 were utilized. The mixtures of sunflower and elephantgrass were done at the following ratios of green matter 100 and 0%; 75 and 25%; 50 and 50%; 25% and 75%;0 and 100%, of grass and sunflower, respectively. Plants were chopped mechanically in particles of 2.0 to 3.0 cm in size, ensiled for 30 days in PVC silos 10 centimeters in diameter and 40 centimeter height. The evaluated variables were as follow: Percentages of dry matter (DM), crude protein (CP), ether extract (EE), neutral detergent fiber (NDF) in vitro digestibility of dry matter (IVSDM) and pH values of the silage. The experimental design utilized was the completely randomized with four replicates. It was concluded that the elephantgrass silages mixture with sunflower plant presented the highest percentages of DM, CP, EE and pH values, increases in the IV DDM and a lower percentage of NDF in the dry matter with increasing levels of replacement.
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rezende2002revistaefeito Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Adauton Vilela Rezende;Antônio Ricardo Evangelista;Adauto Ferreira Barcelos;Gustavo Rezende Siqueira;Roberto Valadares Santos;Michele de Sá Mazo
Journal european journal of lipid science and technology
Year 2002
DOI
10.1590/S1516-35982002000800009
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982002000800009
Keywords
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