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Registros recuperados: 11.642
Primeira ... 575576577578579580581582583 ... Última
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Spatial continuity of soil attributes in an Atlantic Forest remnant in the Mantiqueira Range, MG Ciência e Agrotecnologia
Santos,Marcela de Castro Nunes; Mello,José Marcio de; Mello,Carlos Rogério de; Ávila,Léo Fernandes.
The spatial characterization of soil attributes is fundamental for the understanding of forest ecosystems. The objective of this work was to develop a geostatistical study of chemical and physical soil attributes at three depths (D1 - 0-20 cm; D2 - 20-50 cm; D3 - 50-100 cm), in an Experimental Hydrographic Micro-catchment entirely covered by Atlantic Forest, in the Mantiqueira Range region, Minas Gerais. All the considered variables presented spatial dependence structure in the three depths, and the largest degrees of spatial dependence were observed for pH in the three depths, soil cation exchange capacity potential in D3, soil organic matter in D1 and D3 and clay and soil bulk density in D2. The method most used for the adjustments of semi-variogram...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Brazilian native forest; Geostatistics; Soil features.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542013000100008
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Use of markers to determine the ileal digestibility of amino acids for swine Ciência e Agrotecnologia
Pozza,Paulo Cesar; Gomes,Paulo Cezar; Pozza,Magali Soares Santos; Nunes,Ricardo Vianna; Ferreira,Rony Antônio; Rodrigueiro,Ramalho José Barbosa.
Many markers can be used in digestibility assays for swine, but needs to be evaluated before its use. An assay was carried out with the objective of measuring the coefficients of ileal apparent (CIAD) and standardized digestibility (CISD) of amino acids in meat and bone meal for swine using different markers. Eight crossbred barrows were equipped with T-cannulas in the distal ileum. Four animals received a free protein diet and another four received a diet containing meat and bone meal as the only protein source in the diet. The treatments consisted in evaluating the chromic oxide, acid-insoluble ash naturally occurring in the diet, cellulose and lignin as markers to determine the apparent and standardized digestibility of the amino acids contained in the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Acid-insoluble ash; Cellulose; Chromic oxide; Lignin; Simple T-cannula.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542013000300009
Registros recuperados: 11.642
Primeira ... 575576577578579580581582583 ... Última
 

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