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Nutritional evaluation of elephant-grass silages with different levels of by-products from the cashew juice industry R. Bras. Zootec.
Ferreira,Ana Cristina Holanda; Rodriguez,Norberto Mario; Neiva,José Neuman Miranda; Pimentel,Patrícia Guimarães; Gomes,Silas Primola; Campos,Warley Efrem; Lopes,Fernando César Ferraz.
ABSTRACT This study was conducted to evaluate the intake, apparent digestibility (AD), and degradability in situ of elephant grass (Pennisetum purpureum Schum) silages containing 0, 35.0, 70.0, 105.0, and 140.0 g kg-1 by-product from dried cashew apple (DCBP) (as fed basis). A completely randomized design with four replicates was adopted. For the study of degradability in situ, one adult male cattle was used in a completely randomized design with split plots. Intake and AD of dry matter (DM), crude protein (CP), neutral detergent fiber (NDF), acid detergent fiber (ADF), hemicellulose, and cellulose were evaluated, and the digestible energy (DE) and nitrogen balance (NB) of the silages were determined. The degradability in situ of DM, CP, and NDF was also...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agro-industrial waste; Digestibility; Intake; In situ degradation; Nitrogen balance.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982015001200434
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Seasonal and annual changes in the quality of native rangeland selected by grazing steers in northern Mexico Ciencia e Investigación Agraria
Reyes,Osvaldo; Murillo,Manuel; Herrera,Esperanza; Carrete,Francisco O.
The objective of this study was to determine and compare seasonally the chemical composition, in vitro gas production, in situ degradability and ruminal fermentation of the diet selected by cattle grazing on native rangeland over two years. Diet samples were collected from four esophageal fistulated steers (350 ± 3 kg BW), and four ruminally fistulated steers (342 ± 1.5 kg BW) were used to evaluate degradation and ruminal fermentation. Data were analyzed using a repeated measurements design. The crude protein (CP), in vitro dry matter digestibility (IVDMD) and metabolizable energy (ME) were higher in 2008 (P≤0.01) and in the summer (P≤0.05). The volatile fatty acids (VFA) and propionate concentrations were affected by season and year...
Tipo: Journal article Palavras-chave: Cattle; Grazing; In vitro gas production; In situ degradation; Ruminal fermentation.
Ano: 2016 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202016000200003
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