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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Leite; Embrapa Unidades Centrais. |
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Data corrente: |
06/01/2020 |
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Data da última atualização: |
15/08/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
RUFINO, S. R. DE A.; AZEVEDO, R. A. DE; FURINI, P. M.; CAMPOS, M. M.; MACHADO, F. S.; PIRES, M. de F. A.; LIMA, J. A. M.; COELHO, S. G. |
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Afiliação: |
Sâmara Raiany de Almeida Rufino; Rafael Alves de Azevedo; Pamela Michéli Furini; MARIANA MAGALHAES CAMPOS, CNPGL; FERNANDA SAMARINI MACHADO, CNPGL; MARIA DE FATIMA AVILA PIRES, CNPGL; Juliana Aparecida Mello Lima; Sandra Gesteira Coelho. |
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Título: |
Behavior of dairy heifers after increasing the amounts of milk replacer powder added to whole milk. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, v. 54, e00181, 2019. |
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Páginas: |
8 p. |
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DOI: |
http://doi.org/10.1590/s1678-3921.pab2019.v54.00181 |
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Idioma: |
Inglês |
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Conteúdo: |
ABSTRACT - The objective of this work was to evaluate the effects of increasing the contents of total solids (TS) in whole milk, by adding increasing amounts of milk replacer powder, on the behavior of dairy heifers. Holstein-Gyr crossbred heifers (n = 60) were distributed in four treatments: 13.5, 16.1, 18.2, and 20.4% TS. From 5 to 55 days of age, heifers received 6 L per day of liquid feed, which was reduced by half from 56 to 59 days. Heifers were weaned at 60 days of age and monitored until 90 days, and their behavior was evaluated weekly. During gradual weaning and after weaning, heifer behavior was recorded 1 hour before and 1 hour after liquid feed was offered, and, during weaning, it was evaluated by the scan method. Heifers fed liquid feed containing 20.4% TS present a higher number of play behaviors, spent less time standing, and spent more time ruminating than those that received liquid feed with 13.5% TS, indicating that a higher nutritional plan during weaning is an effective strategy to reduce stress in this period. RESUMO - O objetivo deste trabalho foi avaliar os efeitos do aumento das concentrações de sólidos totais (ST) no leite, pela adição de quantidades crescentes de sucedâneo do leite em pó, sobre o comportamento de bezerras leiteiras. Bezerras mestiças Holandês-Gir (n = 60) foram distribuídas em quatro tratamentos: 13,5, 16,1, 18,2 e 20,4% de ST. Dos 5 aos 55 dias de idade, as bezerras receberam 6 L por dia de dieta líquida, que foi reduzida à metade dos 56 aos 59 dias. As bezerras foram desaleitadas aos 60 dias de idade e monitoradas até os 90 dias, e o seu comportamento foi avaliado semanalmente. Durante o desaleitamento gradual e após o desaleitamento, o comportamento das bezerras foi anotado 1 hora antes e 1 hora após o oferecimento da dieta liquida, e, durante a fase de desaleitamento, foi avaliado pelo método de varredura instantânea. As bezerras alimentadas com 20,4% de ST na dieta líquida apresentam maior número de comportamentos de brincadeiras, menor tempo de permanência em pé e maior tempo ruminando, em comparação às que receberam 13,5% de ST na dieta líquida, o que indica que maior plano nutricional durante o desaleitamento é uma estratégia efetiva para a redução do estresse nessa etapa. MenosABSTRACT - The objective of this work was to evaluate the effects of increasing the contents of total solids (TS) in whole milk, by adding increasing amounts of milk replacer powder, on the behavior of dairy heifers. Holstein-Gyr crossbred heifers (n = 60) were distributed in four treatments: 13.5, 16.1, 18.2, and 20.4% TS. From 5 to 55 days of age, heifers received 6 L per day of liquid feed, which was reduced by half from 56 to 59 days. Heifers were weaned at 60 days of age and monitored until 90 days, and their behavior was evaluated weekly. During gradual weaning and after weaning, heifer behavior was recorded 1 hour before and 1 hour after liquid feed was offered, and, during weaning, it was evaluated by the scan method. Heifers fed liquid feed containing 20.4% TS present a higher number of play behaviors, spent less time standing, and spent more time ruminating than those that received liquid feed with 13.5% TS, indicating that a higher nutritional plan during weaning is an effective strategy to reduce stress in this period. RESUMO - O objetivo deste trabalho foi avaliar os efeitos do aumento das concentrações de sólidos totais (ST) no leite, pela adição de quantidades crescentes de sucedâneo do leite em pó, sobre o comportamento de bezerras leiteiras. Bezerras mestiças Holandês-Gir (n = 60) foram distribuídas em quatro tratamentos: 13,5, 16,1, 18,2 e 20,4% de ST. Dos 5 aos 55 dias de idade, as bezerras receberam 6 L por dia de dieta líquida, que foi reduzida à metade ... Mostrar Tudo |
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Thesagro: |
Stress. |
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Thesaurus Nal: |
Vocalization; Weaning. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/208201/1/Artigo-PAB-Mariana-e00181.pdf
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/210444/1/Behavior-of-dairy-heifers-after.pdf
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Marc: |
LEADER 03089naa a2200265 a 4500
001 2118219
005 2022-08-15
008 2019 bl uuuu u00u1 u #d
024 7 $ahttp://doi.org/10.1590/s1678-3921.pab2019.v54.00181$2DOI
100 1 $aRUFINO, S. R. DE A.
245 $aBehavior of dairy heifers after increasing the amounts of milk replacer powder added to whole milk.$h[electronic resource]
260 $c2019
300 $a8 p.
520 $aABSTRACT - The objective of this work was to evaluate the effects of increasing the contents of total solids (TS) in whole milk, by adding increasing amounts of milk replacer powder, on the behavior of dairy heifers. Holstein-Gyr crossbred heifers (n = 60) were distributed in four treatments: 13.5, 16.1, 18.2, and 20.4% TS. From 5 to 55 days of age, heifers received 6 L per day of liquid feed, which was reduced by half from 56 to 59 days. Heifers were weaned at 60 days of age and monitored until 90 days, and their behavior was evaluated weekly. During gradual weaning and after weaning, heifer behavior was recorded 1 hour before and 1 hour after liquid feed was offered, and, during weaning, it was evaluated by the scan method. Heifers fed liquid feed containing 20.4% TS present a higher number of play behaviors, spent less time standing, and spent more time ruminating than those that received liquid feed with 13.5% TS, indicating that a higher nutritional plan during weaning is an effective strategy to reduce stress in this period. RESUMO - O objetivo deste trabalho foi avaliar os efeitos do aumento das concentrações de sólidos totais (ST) no leite, pela adição de quantidades crescentes de sucedâneo do leite em pó, sobre o comportamento de bezerras leiteiras. Bezerras mestiças Holandês-Gir (n = 60) foram distribuídas em quatro tratamentos: 13,5, 16,1, 18,2 e 20,4% de ST. Dos 5 aos 55 dias de idade, as bezerras receberam 6 L por dia de dieta líquida, que foi reduzida à metade dos 56 aos 59 dias. As bezerras foram desaleitadas aos 60 dias de idade e monitoradas até os 90 dias, e o seu comportamento foi avaliado semanalmente. Durante o desaleitamento gradual e após o desaleitamento, o comportamento das bezerras foi anotado 1 hora antes e 1 hora após o oferecimento da dieta liquida, e, durante a fase de desaleitamento, foi avaliado pelo método de varredura instantânea. As bezerras alimentadas com 20,4% de ST na dieta líquida apresentam maior número de comportamentos de brincadeiras, menor tempo de permanência em pé e maior tempo ruminando, em comparação às que receberam 13,5% de ST na dieta líquida, o que indica que maior plano nutricional durante o desaleitamento é uma estratégia efetiva para a redução do estresse nessa etapa.
650 $aVocalization
650 $aWeaning
650 $aStress
700 1 $aAZEVEDO, R. A. DE
700 1 $aFURINI, P. M.
700 1 $aCAMPOS, M. M.
700 1 $aMACHADO, F. S.
700 1 $aPIRES, M. de F. A.
700 1 $aLIMA, J. A. M.
700 1 $aCOELHO, S. G.
773 $tPesquisa Agropecuária Brasileira$gv. 54, e00181, 2019.
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Registro original: |
Embrapa Gado de Leite (CNPGL) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
30/07/2013 |
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Data da última atualização: |
30/07/2013 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
WELKE, J. E.; MANFROI, V.; ZANUS, M.; LAZZAROTTO, M.; ZINI, C. A. |
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Afiliação: |
JULIANE ELISA WELKE, UFRGS; VITOR MANFROI, UFRGS; MAURO CELSO ZANUS, CNPUV; MARCELO LAZZAROTTO, CNPF; CLÁUDIA ALCARAZ ZINI, UFRGS. |
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Título: |
Differentiation of wines according to grape variety using multivariate analysis of comprehensive two-dimensional gas chromatography with time-of-flight mass spectrometric detection data. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
Food Chemistry, n. 141, p. 3897-3905, 2013. |
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Idioma: |
Inglês |
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Conteúdo: |
Headspace solid-phase microextraction (HS-SPME) combined with comprehensive two-dimensional gas chromatography with time-of-flight mass spectrometry detection (GCÂGC/TOFMS) was used to analyse the volatiles in five types of wines elaborated with grapes of Cabernet Sauvignon, Merlot, Chardonnay, Sauvignon Blanc and Pinot Noir varieties. Fisher ratio, principal component analysis (PCA) and stepwise linear discriminant analysis (SLDA) were used to develop a discriminant model and, as a result, 12 volatile compounds enabled differentiation and classification of wines according to grape cultivars. A detailed examination of GCÂGC/TOFMS data showed that the use of one-dimensional gas chromatography with a mass spectrometric detector (1D-GC/MS) would probably result in misidentification of some of these 12 compounds, as they showed partial coelution with other components in the first chromatographic dimension. |
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Palavras-Chave: |
Brasil; Composto volátil; Espectofotometria; Fisher ratio; PCA; Rio grande do sul; Serra gaúcha; Volatie compound; Wine. |
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Thesagro: |
Cromatografia Gasosa; Vinho. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01822naa a2200301 a 4500
001 1963021
005 2013-07-30
008 2013 bl uuuu u00u1 u #d
100 1 $aWELKE, J. E.
245 $aDifferentiation of wines according to grape variety using multivariate analysis of comprehensive two-dimensional gas chromatography with time-of-flight mass spectrometric detection data.$h[electronic resource]
260 $c2013
520 $aHeadspace solid-phase microextraction (HS-SPME) combined with comprehensive two-dimensional gas chromatography with time-of-flight mass spectrometry detection (GCÂGC/TOFMS) was used to analyse the volatiles in five types of wines elaborated with grapes of Cabernet Sauvignon, Merlot, Chardonnay, Sauvignon Blanc and Pinot Noir varieties. Fisher ratio, principal component analysis (PCA) and stepwise linear discriminant analysis (SLDA) were used to develop a discriminant model and, as a result, 12 volatile compounds enabled differentiation and classification of wines according to grape cultivars. A detailed examination of GCÂGC/TOFMS data showed that the use of one-dimensional gas chromatography with a mass spectrometric detector (1D-GC/MS) would probably result in misidentification of some of these 12 compounds, as they showed partial coelution with other components in the first chromatographic dimension.
650 $aCromatografia Gasosa
650 $aVinho
653 $aBrasil
653 $aComposto volátil
653 $aEspectofotometria
653 $aFisher ratio
653 $aPCA
653 $aRio grande do sul
653 $aSerra gaúcha
653 $aVolatie compound
653 $aWine
700 1 $aMANFROI, V.
700 1 $aZANUS, M.
700 1 $aLAZZAROTTO, M.
700 1 $aZINI, C. A.
773 $tFood Chemistry$gn. 141, p. 3897-3905, 2013.
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Embrapa Florestas (CNPF) |
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