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 | Acesso ao texto completo restrito à biblioteca da Embrapa Pecuária Sudeste. Para informações adicionais entre em contato com cppse.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Milho e Sorgo; Embrapa Pecuária Sudeste. |
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Data corrente: |
13/12/2023 |
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Data da última atualização: |
13/12/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
OLIVEIRA, D. M. de; PASQUINI, C.; NOGUEIRA, A. R. de A.; RABELO, M. D.; SIMEONE, M. L. F.; SOUZA, G. B. de. |
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Afiliação: |
DENILSON MENDES DE OLIVEIRA, UNIVERSIDADE ESTADUAL DE CAMPINAS; CELIO PASQUINI, UNIVERSIDADE ESTADUAL DE CAMPINAS; ANA RITA DE ARAUJO NOGUEIRA, CPPSE; MARCIO DIAS RABELO, CPPSE; MARIA LUCIA FERREIRA SIMEONE, CNPMS; GILBERTO BATISTA DE SOUZA, CPPSE. |
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Título: |
Comparative analysis of compact and benchtop near-infrared spectrometers for forage nutritional trait measurements. |
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Ano de publicação: |
2024 |
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Fonte/Imprenta: |
Microchemical Journal, v. 196, 109682, 2024. |
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DOI: |
https://doi.org/10.1016/j.microc.2023.109682 |
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Idioma: |
Inglês |
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Conteúdo: |
We compared near-infrared (NIR) partial least squares models of a compact and a benchtop spectrometer to measure six nutritional traits of Brachiaria forages, including in-vitro dry matter digestibility (IVDMD), crude protein (CP), crude fiber (CF), acid detergent fiber (ADF), neutral detergent fiber (NDF), and lignin (LG). The relative prediction errors (RMSE/mean) for both instruments varied between 1.5% (for NDF) and 13% (for CP). Additionally, we obtained multivariate figures of merit and used a robust randomization t-test to comprehensively compare the two instruments. Our results show that, despite its lower analytical sensitivity, the compact instrument performs sufficiently well compared to the benchtop instrument and can be used for routine measurement of all six forage nutritional traits. The small performance difference between the two spectrometers can primarily be attributed to the narrower spectral range measured by the compact instrument. |
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Palavras-Chave: |
Característica nutricional; Espectroscopia. |
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Thesagro: |
Análise Comparativa; Espectrometria; Espectrômetro; Forragem. |
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Categoria do assunto: |
W Química e Física |
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Marc: |
LEADER 01806naa a2200265 a 4500
001 2159642
005 2023-12-13
008 2024 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.microc.2023.109682$2DOI
100 1 $aOLIVEIRA, D. M. de
245 $aComparative analysis of compact and benchtop near-infrared spectrometers for forage nutritional trait measurements.$h[electronic resource]
260 $c2024
520 $aWe compared near-infrared (NIR) partial least squares models of a compact and a benchtop spectrometer to measure six nutritional traits of Brachiaria forages, including in-vitro dry matter digestibility (IVDMD), crude protein (CP), crude fiber (CF), acid detergent fiber (ADF), neutral detergent fiber (NDF), and lignin (LG). The relative prediction errors (RMSE/mean) for both instruments varied between 1.5% (for NDF) and 13% (for CP). Additionally, we obtained multivariate figures of merit and used a robust randomization t-test to comprehensively compare the two instruments. Our results show that, despite its lower analytical sensitivity, the compact instrument performs sufficiently well compared to the benchtop instrument and can be used for routine measurement of all six forage nutritional traits. The small performance difference between the two spectrometers can primarily be attributed to the narrower spectral range measured by the compact instrument.
650 $aAnálise Comparativa
650 $aEspectrometria
650 $aEspectrômetro
650 $aForragem
653 $aCaracterística nutricional
653 $aEspectroscopia
700 1 $aPASQUINI, C.
700 1 $aNOGUEIRA, A. R. de A.
700 1 $aRABELO, M. D.
700 1 $aSIMEONE, M. L. F.
700 1 $aSOUZA, G. B. de
773 $tMicrochemical Journal$gv. 196, 109682, 2024.
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