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Registro Completo |
Biblioteca(s): |
Embrapa Gado de Leite. |
Data corrente: |
12/08/2021 |
Data da última atualização: |
12/08/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
SGUIZZATO, A. L. L.; MARCONDES, M. I.; DIJKSTRA, J.; VALADARES FILHO, S. de C.; CAMPOS, M. M.; MACHADO, F. S.; SILVA, B. C.; ROTTA, P. P. |
Afiliação: |
ANNA LUIZA LACERDA SGUIZZATO, Universidade Federal de Viçosa; MARCOS INÁCIO MARCONDES, Universidade Federal de Viçosa; JAN DIJKSTRAI, Wageningen University; SEBASTIÃO DE CAMPOS VALADARES FILHO, Universidade Federal de Viçosa; MARIANA MAGALHAES CAMPOS, CNPGL; FERNANDA SAMARINI MACHADO, CNPGL; BRENO CASTRO SILVA, Universidade Federal de Viçosa; POLYANA PIZZI ROTTA, Universidade Federal de Viçosa. |
Título: |
Energy requirements for pregnant dairy cows. |
Ano de publicação: |
2020 |
Fonte/Imprenta: |
PLoS One, v. 15, n. 7, e0235619, 2020. |
DOI: |
https://doi.org/ 10.1371/journal.pone.0235619 |
Idioma: |
Inglês |
Conteúdo: |
This study aimed to estimate energy requirements of pregnant Holstein × Gyr cows. Different planes of nutrition were established by two feeding regimens: ad libitum or maintenance. Sixty-two nonlactating cows with average body weight of 480 ± 10.1 kg and an age of 5 ± 0.5 years were used. Cows were divided into three groups: pregnant (n = 44), non-pregnant (n=12), and baseline reference (n = 6). The 56 pregnant and non-pregnant cows were randomly allocated into a feeding regimen: ad libitum or maintenance. To evaluate the effects of days of pregnancy, pregnant and non-pregnant animals were slaughtered at 140, 200, 240, and 270 days of pregnancy. Energy requirements for maintenance differed between pregnant and non-pregnant cows, thus two equations were developed. Net energy and metabolizable energy requirements for maintenance of non-pregnant cows were 82 kcal/kg empty body weight0.75/day and 132 kcal/kg empty body weight0.75/day, respectively. The efficiency of use of metabolizable energy for maintenance of non-pregnant cows was 62.4%. Net energy and metabolizable energy for maintenance of pregnant cows were 86 kcal/kg empty body weight0.75/day and 137 kcal/kg empty body weight0.75/day, respectively. Efficiency of use of metabolizable energy for maintenance of pregnant cows was 62.5%. The efficiency of use of metabolizable energy for gain was 41.9%. The efficiency of use of metabolizable energy for pregnancy was 14.1%. Furthermore, net energy requirement for pregnancy was different from zero from day 70 of pregnancy onwards. In conclusion, net energy and metabolizable energy requirements for maintenance of non-pregnant cows are different from pregnant cows. Furthermore, we believe that the proposed non-linear equations to estimate net energy requirements for pregnancy are more adequate than current NRC equation, and should be recommended for Holstein × Gyr cows. MenosThis study aimed to estimate energy requirements of pregnant Holstein × Gyr cows. Different planes of nutrition were established by two feeding regimens: ad libitum or maintenance. Sixty-two nonlactating cows with average body weight of 480 ± 10.1 kg and an age of 5 ± 0.5 years were used. Cows were divided into three groups: pregnant (n = 44), non-pregnant (n=12), and baseline reference (n = 6). The 56 pregnant and non-pregnant cows were randomly allocated into a feeding regimen: ad libitum or maintenance. To evaluate the effects of days of pregnancy, pregnant and non-pregnant animals were slaughtered at 140, 200, 240, and 270 days of pregnancy. Energy requirements for maintenance differed between pregnant and non-pregnant cows, thus two equations were developed. Net energy and metabolizable energy requirements for maintenance of non-pregnant cows were 82 kcal/kg empty body weight0.75/day and 132 kcal/kg empty body weight0.75/day, respectively. The efficiency of use of metabolizable energy for maintenance of non-pregnant cows was 62.4%. Net energy and metabolizable energy for maintenance of pregnant cows were 86 kcal/kg empty body weight0.75/day and 137 kcal/kg empty body weight0.75/day, respectively. Efficiency of use of metabolizable energy for maintenance of pregnant cows was 62.5%. The efficiency of use of metabolizable energy for gain was 41.9%. The efficiency of use of metabolizable energy for pregnancy was 14.1%. Furthermore, net energy requirement for pregnancy was d... Mostrar Tudo |
Thesagro: |
Gado Leiteiro. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/225095/1/Energy-requirements.pdf
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Marc: |
LEADER 02554naa a2200229 a 4500 001 2133488 005 2021-08-12 008 2020 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/ 10.1371/journal.pone.0235619$2DOI 100 1 $aSGUIZZATO, A. L. L. 245 $aEnergy requirements for pregnant dairy cows.$h[electronic resource] 260 $c2020 520 $aThis study aimed to estimate energy requirements of pregnant Holstein × Gyr cows. Different planes of nutrition were established by two feeding regimens: ad libitum or maintenance. Sixty-two nonlactating cows with average body weight of 480 ± 10.1 kg and an age of 5 ± 0.5 years were used. Cows were divided into three groups: pregnant (n = 44), non-pregnant (n=12), and baseline reference (n = 6). The 56 pregnant and non-pregnant cows were randomly allocated into a feeding regimen: ad libitum or maintenance. To evaluate the effects of days of pregnancy, pregnant and non-pregnant animals were slaughtered at 140, 200, 240, and 270 days of pregnancy. Energy requirements for maintenance differed between pregnant and non-pregnant cows, thus two equations were developed. Net energy and metabolizable energy requirements for maintenance of non-pregnant cows were 82 kcal/kg empty body weight0.75/day and 132 kcal/kg empty body weight0.75/day, respectively. The efficiency of use of metabolizable energy for maintenance of non-pregnant cows was 62.4%. Net energy and metabolizable energy for maintenance of pregnant cows were 86 kcal/kg empty body weight0.75/day and 137 kcal/kg empty body weight0.75/day, respectively. Efficiency of use of metabolizable energy for maintenance of pregnant cows was 62.5%. The efficiency of use of metabolizable energy for gain was 41.9%. The efficiency of use of metabolizable energy for pregnancy was 14.1%. Furthermore, net energy requirement for pregnancy was different from zero from day 70 of pregnancy onwards. In conclusion, net energy and metabolizable energy requirements for maintenance of non-pregnant cows are different from pregnant cows. Furthermore, we believe that the proposed non-linear equations to estimate net energy requirements for pregnancy are more adequate than current NRC equation, and should be recommended for Holstein × Gyr cows. 650 $aGado Leiteiro 700 1 $aMARCONDES, M. I. 700 1 $aDIJKSTRA, J. 700 1 $aVALADARES FILHO, S. de C. 700 1 $aCAMPOS, M. M. 700 1 $aMACHADO, F. S. 700 1 $aSILVA, B. C. 700 1 $aROTTA, P. P. 773 $tPLoS One$gv. 15, n. 7, e0235619, 2020.
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Registros recuperados : 18 | |
6. | | CASTRICINI, A.; OLIVEIRA, P. M. de; MARTINELI, M.; DELIZA, R.; RODRIGUES, M. G. V. Bananas apresentadas em dedos e buquês: qualidade e preferência do consumidor. Revista Sítio Novo, Palmas, v. 3, n. 1, p. 5-19, jan./jun. 2019.Tipo: Artigo em Periódico Indexado | Circulação/Nível: C - 0 |
Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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8. | | MARTINELI, M.; ALVES, A. A. R.; REZENDE, C. M.; FONSECA, M. J. O. Identificação dos compostos voláteis em frutos de caqui 'mikado' (Diospyros kaki) com tanino e destanizados durante o amadurecimento por meio da técnica de cromatografia gasosa acoplada a espectometria de massas (CG-EM). In: SIMPÓSIO LATINO AMERICANO DE CIÊNCIA DE ALIMENTOS, 9., 2011, Campinas. Ciência de alimentos e qualidade de vida: saúde, meio ambiente e sustentabilidade: resumos. Campinas: UNICAMP, FEA, 2011. 1 CD-ROM.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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9. | | CASTRICINI, A.; OLIVEIRA, P. M. de; MARTINELI, M.; COELHO, E. F.; RODRIGUES, M. G. V. Quality of 'Tainung 1' papaya produced by partial root zone drying. Revista Brasileira de Fruticultura, Jaboticabal, , v. 41, n. 5, e-092, 2019.Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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12. | | MARTINELI, M.; ALVES, A. A. R.; FIGUEIREDO, G. M. de; REZENDE, C. M. de; FONSECA, M. J. de O. Caqui cv. 'Mikado': análise de compostos voláteis em frutos adstringentes e destanizados. Ciência Rural, Santa Maria, v. 43, n. 8, p. 1516-1521, ago. 2013.Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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13. | | MARTINELI, M.; VASCONCELOS, N. C. de; ALVES, A. A. R.; REZENDE, C. M.; FONSECA, M. J. O. Composição volátil de frutos de caqui 'Rama-forte' (Diospyrus kaki, L.) utilizando duas diferentes técnicas de extração. In: CONGRESSO LATINO AMERICANO DE CROMATOGRAFIA E TÉCNICAS RELACIONADAS, 14., 2012, Florianópolis. Livro de resumos. [S.l.: s.n.], 2012. p. 32.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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14. | | MARTINELI, M.; FONSECA, M. J. de O.; SOARES, A. G.; MATTOS, C. T. G.; REZENDE, C. M.; DELIZA, R. The role of different packages for transportation on persimmon shelf life. In: EUROPEAN CONFERENCE ON SENSORY AND CONSUMER RESEARCH, 6., 2014, Denmark. Eurosense 2014: A sense of life. Programme Booklet. [S.l.]: Elsevier, 2014. P231.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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15. | | MARTINELI, M.; ALVES, A. A. R.; UEKANE, T. M.; OLIVEIRA, A. H.; CAMPOS, R. S.; REZENDE, C. M.; FONSECA, M. J. O. Analysis of volatile compounds in 'Fuyu' persimmon: comparison of extraction techniques by GC-qMS. In: INTERNATIONAL SYMPOSIUM ON ADVANCES IN EXTRACTION TECHNOLOGIES, 15.; WORKSHOP EM AVANÇOS RECENTEs NO PREPARO DE AMOSTRAS, 3., 2013, João Pessoa. Book of abstracts. [S.l.: s.n.], 2013.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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16. | | MARTINELI, M.; REZENDE, C. M. de; FONSECA, M. J. de O.; SOARES, A. G.; MOTTA, L. C. do C.; BRITO, G. F. da C. Extensão da vida útil pós-colheita do caqui 'mikado' pela substituição da embalagem para comercialização. In: CONGRESSO BRASILEIRO DE FRUTICULTURA, 22., 2012, Bento Gonçalves. Anais... Bento Gonçalves: SBF, 2012. 1 CD-ROM.Tipo: Artigo em Anais de Congresso |
Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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17. | | MARTINELI, M.; SILVA, J. F. da; CARVALHO, A. I. S.; MARANHÃO, C. M. de A.; CASTRICINI, A.; OLIVEIRA, P. M. de; COELHO, E. F. Coloração e aceitação sensorial de mamão ?tainung 01? em função de épocas de produção e manejo de irrigação In: SIMPÓSIO DO PAPAYA BRASILEIRO, 7., 2018, Vitória. Produção e sustentabilidade hídrica. [s.l.], 2018. 5Tipo: Artigo em Anais de Congresso |
Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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18. | | MARTINELI, M.; REZENDE, C. M. de; FONSECA, M. J. de O.; SOARES, A. G.; SILVA, O. F.; OLIVEIRA, A. H.; MOTTA, L. C. do C.; SILVA, M. H. G. e; BRITO, G. F. da C.; BARBOSA, W. J.; COSTA, D. dos S. Incidência de fungos pós-colheita em caqui 'Mikado' submetido a diferentes embalagens. In: CONGRESSO BRASILEIRO DE PATOLOGIA PÓS-COLHEITA, 1., 2012, Recife. Resumos... Recife: UFRPE, 2012. 1 CD-ROM.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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