qualitative aspects of elephantgrass silage with corn meal and soybean hulls
aspectos qualitativos da silagem de capim-elefante com fubá de milho e casca de soja

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ID: 236510
2012
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Abstract
The objective of this study was to evaluate the effects of corn meal and soybean hulls in silage Pennisetum purpureum cv. Roxo Botucatu. The experiment has adopted a completely randomized design in a split-plot, with seven treatments (elephant grass pure soy cone (5 and 10%) and corn meal (5 and 10%) alone or in joint same proportions totaling 5 to 10%), three open times and three replications. We used a randomized design in a split-plot, with seven treatments (elephant grass pure, soybean hulls (5 and 10%) and corn meal (5 and 10%) of isolated form or together in the same proportions totalizing 5 and 10%, three open times and three replications. There were used experimental silos made of bucket of 20 L. Silos were opened at 7, 14 and 28 days after ensiling, and evaluated the effluent losses, dry matter, pH, total titratable acidity (TTA) and aerobic stability of silage. The use of additives in ensiling reduced the effluent losses. Dry matter varied with the use of additives, obtaining higher values for the silage with 10% soybean hulls or corn meal, in relation to elephant grass pure silage. The results of pH present interaction between treatment and time of opening, with the desired values 7 days after ensiling.The breaking of aerobic stability occurred 48 hours after opening the silo for the treatments containing corn meal alone or together with soybean hulls for both levels. The use of corn meal, either individually or in combination with soybean hulls, was effective in improving the standard of silage fermentation elephant grass, however, additional care should be taken about management after opening the silo.

Objetivou-se com este trabalho, avaliar os efeitos do fubá de milho e da casca de soja na silagem de Pennisetum purpureum cv. Roxo Botucatu. Utilizou-se um delineamento inteiramente casualizado, em esquema de parcela subdividida, com sete tratamentos (capim-elefante puro, casca de soja (5 e 10%) e fubá de milho (5 e 10%) de forma isolada ou conjunta em mesmas proporções totalizando 5 e 10%), três tempos de abertura e três repetições. Foram utilizados silos experimentais constituídos de baldes plásticos de 20 L com tampa. Os silos foram abertos aos 7, 14 e 28 dias após a ensilagem, sendo avaliadas as perdas por efluentes, matéria seca, pH, acidez titulável e a estabilidade aeróbia da massa ensilada. A utilização de aditivos na ensilagem reduziu as perdas por efluentes. A matéria seca variou com a utilização de aditivos, obtendo valores mais elevados na silagem com 10% de casca de soja ou fubá de milho, em relação à silagem de capim-elefante puro. Os resultados de pH apresentaram interação entre os tratamentos e tempo de abertura, havendo valores desejados aos 7º dia após a ensilagem. A quebra da estabilidade aeróbia ocorreu 48h após a abertura do silo para os tratamentos contendo fubá de milho individual ou em conjunto com casca de soja para os dois níveis. A utilização de fubá de milho, seja individualmente ou em conjunto com a casca de soja, foi eficiente na melhoria do padrão fermentativo da silagem de capim elefante, entretanto, cuidados adicionais devem ser tomados quanto ao manejo pós-abertura do silo.

Reference Key
silva2012semina:qualitative Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Paulo Henrique Santos Silva;José Augusto Reis Almeida;André Ricardo Gomes Bezerra;Danilo Gusmão de Quadros;Alexandro Pereira Andrade;Jorge Aurélio Macedo Araújo
Journal frontiers in neuroendocrinology
Year 2012
DOI
10.5433/1679-0359.2012v33n3p1209
URL
http://www.uel.br/revistas/uel/index.php/semagrarias/article/view/8951
Keywords
Agriculture (General) ph efluentes forragem

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