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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
12/08/2021 |
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Data da última atualização: |
12/08/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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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. |
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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. |
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Título: |
Energy requirements for pregnant dairy cows. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
PLoS One, v. 15, n. 7, e0235619, 2020. |
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DOI: |
https://doi.org/ 10.1371/journal.pone.0235619 |
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Idioma: |
Inglês |
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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 |
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Thesagro: |
Gado Leiteiro. |
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Categoria do assunto: |
-- |
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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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Registro original: |
Embrapa Gado de Leite (CNPGL) |
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| Registros recuperados : 22 | |
| 8. |  | RECH, F.; FAORO, I.; SINSKI, I.; OLIVEIRA, P. R. D. de; RITSCHEL, P. S. Identificação de acessos de pereira por meio de marcadores moleculares SSR. In: CONGRESSO BRASILEIRO DE FRUTICULTURA, 20., 2008, Vitória, ES. Anais... Vitória: Incaper, 2008. Não Paginado.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Uva e Vinho. |
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| 9. | | RECH, F. R.; RITSCHEL, P. S.; OLIVEIRA, P. R. D. de; SINSKI, I.; FAORO, I. Identificação de acessos de pereira por meio de marcadores moleculares SSR. In: SIMPÓSIO BRASILEIRO DE RECURSOS GENÉTICOS, 2., 2008, Brasília, DF. Anais... Brasília, DF: Embrapa Recursos Genéticos e Biotecnologia, 2008. p. 227. Resumo.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Uva e Vinho. |
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| 10. | | RECH, F. R.; SINSKI, I.; RITSCHEL, P. S.; OLIVEIRA, P. R. D. de; FAORO, I. Identificação de acessos de pereira por meio de Marcadores Moleculares SSR. In: ENCONTRO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA UVA E VINHO, 6.; ENCONTRO DE PÓS-GRADUANDOS DA EMBRAPA UVA E VINHO, 2., 2008, Bento Gonçalves. Resumos... Bento Gonçalves: Embrapa Uva e Vinho, 2008. p. 42. Resumo.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Uva e Vinho. |
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| 13. | | DEQUIGIOVANNI, G.; NALIN, R.; GOMES, F. G. G.; RECH, F.; FAORO, I.; OLIVEIRA, P. R. D. de; RITSCHEL, P. S. Diversidade genética e uso aplicado de marcadores moleculares SSR na organização de recursos genéticos e no melhoramento genético de pera. In: CONGRESSO BRASILEIRO DE FRUTICULTURA, 21., 2010, Natal. Frutas: saúde, inovação e responsabilidade: anais. Natal: Sociedade Brasileira de Fruticultura, 2010. 4 p. Resumo indexado.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Uva e Vinho. |
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| 15. | | WREGE, M. S.; FAORO, I. D.; HERTER, F. G.; PANDOLFO, C.; ALMEIDA, I. R. de; FILIPPINI ALBA, J. M.; PEREIRA, J. F. M. Agroclimatic zoning of european and asian pear cultivars with potential for commercial planting in southern Brazil. Revista Brasileira de Fruticultura, Jaboticabal, v. 39, n. 2, e-312, 2017. 11 p.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Clima Temperado; Embrapa Florestas. |
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| 16. | | DEQUIGIOVANNI; RECH, F.; GOMES, F. G. G.; CEROTTI, I. S.; FAORO, I.; OLIVEIRA, P. R. D. de; QUECINI, V.; RITSCHEL, P. S. Identification of a Simple Sequence Repeat molecular-marker set for large-scale analyses of pear germplasm. Crop Breeding and Applied Biotechnology, Viçosa, v. 12, n. 2, p. 118-125, abr./jun. 2012.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Uva e Vinho. |
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| 17. | | FAORO, I. D.; SEZERINO, A. A.; PASA, M. da S.; ARGENTA, L. C.; FIORAVANÇO, J. C.; OLIVEIRA, P. R. D. de. A pereira "Packham's Triumph". Agropecuária Catarinense, v. 31, n. 3, p. 35-37, set./dez. 2018.| Tipo: Comunicado Técnico/Recomendações Técnicas |
| Biblioteca(s): Embrapa Uva e Vinho. |
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| 18. | | NAKASU, B. H.; BARBOSA, W.; FAORO, I. D.; HERTER, F. G.; PEREIRA, J. F. M.; RASEIRA, M. C. B.; DEGENHARDT, J. Pêra. In: ALBUQUERQUE, A. C. S.; SILVA, A. G. da (Ed.). Agricultura tropical: quatro décadas de inovações tecnológicas, institucionais e políticas. Brasília, DF: Embrapa Informação Tecnológica, 2008. v. 1, p. 511-518.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Clima Temperado. |
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| 19. | | OLIVEIRA, P. R. D. de; RITSCHEL, P. S.; RUFATO, A. De R.; FIORAVANÇO, J. C.; FAORO, I. D.; LEITE, G. B.; DUTRA, L. F.; MAYER, N. A.; DEGENHARDT-GOLDBACH, J. The Brazilian pear breeding program. Acta Horticulturae, The Hague, n. 909, p. 145-151, out. 2011. Trabalho apresentado no 11º International Pear Symposium.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 2 |
| Biblioteca(s): Embrapa Florestas; Embrapa Uva e Vinho. |
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| 20. | | OLIVEIRA, P. R. D. de; RITSCHEL, P. S.; RUFATO, A. de R.; FIORAVANÇO, J. C.; QUECINI, V. M.; FAORO, I. D.; LEITE, G. B.; DUTRA, L. F.; MAYER, N. A. The Brazilian pear breeding program. Acta Horticulturae, Patagonia, n. 909, p. 145-151, Oct. 2011. p. 145-151 Trabalho apresentado no 11º International Pear Symposium.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Clima Temperado. |
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| Registros recuperados : 22 | |
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