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| Registros recuperados : 18 | |
| 1. |  | SILVESTRE, T.; MACHADO, F. S.; CAMPOS, M. M.; PEREIRA, L. G. R.; TOMICH, T. R.; RODRIGUES, P. Methane emission in tropical conditions. In: GREENHOUSE GAS AND ANIMAL AGRICULTURE CONFERENCE, 6., Melbourne, 2016. Anais... Melbourne: University of Melbourne, 2016.| Biblioteca(s): Embrapa Gado de Leite. |
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| 2. | | SILVESTRE, T.; FERREIRA, A. L.; MACHADO, F. S.; CAMPOS, M. M.; TOMICH, T. R.; PEREIRA, L. G. R.; RODRIGUES, P. H. M.; MARCONDES, M. I. Energy requirements of Holstein, Gyr, and Holstein x Gyr crossbred heifers using the respirometry technique. Frontiers in Animal Science, v. 3, 919515, 2022.| Biblioteca(s): Embrapa Gado de Leite. |
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| 3. | | CAMPOS, M. M.; BORGES, A. L. DA C. C.; LOPES, F. C. F.; PANCOTI, C. G.; SILVA, R. R. E; SILVESTRE, T. Degradabilidade in situ da matéria seca e da matéria orgânica de cana de açúcar tratada ou não com óxido de cálcio, em novilhas leiteiras Holândes x Gir. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 49., 2012, Brasília. A produção animal no mundo em transformação: anais. Brasília, DF: SBZ, 2012.| Biblioteca(s): Embrapa Gado de Leite. |
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| 5. | | CAMPOS, M. M.; BORGES, A. L. DA C. C.; LOPES, F. C. F.; PANCOTI, C. G.; SILVA, R. R. E; SILVESTRE, T. Desgradabilidade in situ das frações fibrosas da cana de açucar tratada ou não com óxido de calcio, em novilhas leiteiras holandes x gir. In: Reunião Anual da Sociedade Brasileira de Zootecnia, 48., 2011, Belém. Anais...| Biblioteca(s): Embrapa Gado de Leite. |
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| 6. | | CAMPOS, M. M.; BORGES, A. L. DA C. C.; LOPES, F. C. F.; PANCOTI, C. G.; SILVA, R. R. E; SILVESTRE, T.; MACHADO, F. S.; GOMES, S. P. Consumo de dietas contendo cana de açucar tratada ou não com oxido de calcio em vacas em lactação holandes x gir. In: Congresso Brasileiro de Zootecnia, 21., 2011, Maceió. Anais...| Biblioteca(s): Embrapa Gado de Leite. |
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| 7. | | PANCOTI, C. G.; BORGES, A. L. DA C. C.; LOPES, F. C. F.; SILVA, R. R.; CAMPOS, M. M.; SILVESTRE, T.; LAGE, H. F.; FACURY FILHO, E. J. Consumo e digestibilidade aparente do calcio e fosforo, em dietas contendo cana-de-açucar tratada ou não com oxido de calcio, em novilhas holandes x zebu. In: Congresso Brasileiro de Zootecnia, 21., 2011, Maceió. Anais...| Biblioteca(s): Embrapa Gado de Leite. |
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| 8. | | SILVESTRE, T.; FERNANDES, P. B.; POSSAS, F. P.; MACHADO, F. S.; TOMICH, T. R.; CAMPOS, M. M.; PEREIRA, L. G. R.; RODRIGUES, P. H. M. Consumo de matéria seca por novilhas leiteiras Holandês, Gir e F1 Holandês-Gir sob diferentes planos nutricionais. In: CONGRESSO INTERNACIONAL DO LEITE, 13., 2015, Porto Alegre. Anais... Juiz de Fora: Embrapa Gado de Leite, 2015. 4 p.| Biblioteca(s): Embrapa Gado de Leite. |
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| 9. | | CAMPOS, M. M.; BORGES, A. L. DA C. C.; LOPES, F. C. F.; PANCOTI, C. G.; SILVA, R. R. E; SILVESTRE, T.; MACHADO, F. S.; GOMES, S. P. Digestibilidade aparente de dietas contendo cana de açucar tratada ou não com óxido de cálcio em vacas em lactações holandês x Gir. In: Congresso Brasileiro de Zootecnia, 21., 2011, Maceió. Anais...| Biblioteca(s): Embrapa Gado de Leite. |
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| 10. | | CAMPOS, M. M.; BORGES, A. L. DA C. C.; LOPES, F. C. F.; PANCOTI, C. G.; SILVA, R. R. E; SILVESTRE, T. Parâmetros de dinâmica de fluxo da fase sólida de dietas contendo cana de açúcar tratada ou não com óxido de cálcio, em fêmeas bovinas leiteiras Holandês x Gir. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 49., 2012, Brasília. A produção animal no mundo em transformação: anais. Brasília, DF: SBZ, 2012.| Biblioteca(s): Embrapa Gado de Leite. |
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| 11. | | PANCOTI, C. G.; CAMPOS, M. M.; BORGES, A. L. DA C. C.; SILVA, R. R. E; SILVESTRE, T.; MACHADO, F. S.; GOMES, S. P. Parametros ruminais de dietas contendo cana de açucar tratada ou não com óxido de calcio, em femeas bovinas leiteiras holandes x gir. In: Congresso Brasileiro de Zootecnia, 21., 2011, Maceió. Anais...| Biblioteca(s): Embrapa Gado de Leite. |
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| 12. | | MARCONDES, M. I.; PROVAZZI, F. P.; SILVESTRE, T.; SILVA, A. L.; VALADARES FILHO, S. C.; CAMPOS, M. M.; MACHADO, F. S.; ROTTA, P. P. Protein requirements for pregnant dairy cows. Journal of Dairy Science, v. 106, p. 8821-8834, 2023.| Biblioteca(s): Embrapa Gado de Leite. |
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| 13. | | MARCONDES, M. I.; SILVESTRE, T.; DIJKSTRA, J.; PROVAZZI, F. P.; SILVA, A. L.; VALADARES FILHO, S. C.; CAMPOS, M. M.; MACHADO, F. S.; ROTTA, P. P. Protein requirements for pregnant dairy cows. Animal - Science Proceedings, v. 13, n. 3, p. 253-254, 2022. Edição dos Anais do VII International Symposium on Energy and Protein Metabolism and Nutrition, 2022, Granada, Spain.| Biblioteca(s): Embrapa Gado de Leite. |
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| 14. | | SILVESTRE, T.; REIS, L. G. DOS; MOREIRA, E. DE A.; FRANÇA, A. B.; MADEIRO, A. S.; PEREIRA, L. G. R.; MORENZ, M. J. F.; OLIVEIRA, J. S. e. Cinética de fermentação de silagem de milho com adição de glicerina bruta. In: CONGRESSO INTERNACIONAL DO LEITE, 11.; WORKSHOP DE POLÍTICAS PÚBLICAS, 11.; SIMPÓSIO DE SUSTENTABILIDADE DA ATIVIDADE LEITEIRA, 12., 2012, Goiânia. Anais... Juiz de Fora: Embrapa Gado de Leite, 2012.| Biblioteca(s): Embrapa Gado de Leite. |
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| 15. | | SILVESTRE, T.; REIS, L. G. DOS; MOREIRA, E. DE A.; PEREIRA, L. G. R.; TOMICH, T. R.; CAMPOS, M. M.; RODRIGUES, J. A. S.; GONÇALVES, L. C. Cinética de fermentação in vitro de silagem de sorgo em diferentes idades de corte. In: CONGRESSO INTERNACIONAL DO LEITE, 11.; WORKSHOP DE POLÍTICAS PÚBLICAS, 11.; SIMPÓSIO DE SUSTENTABILIDADE DA ATIVIDADE LEITEIRA, 12., 2012, Goiânia. Anais... Juiz de Fora: Embrapa Gado de Leite, 2012.| Biblioteca(s): Embrapa Gado de Leite. |
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| 16. | | FERNANDES, P. B.; PACIULLO, D. S. C.; CARVALHO, C. A. B. de; SILVESTRE, T.; GOMIDE, C. A. de M.; PEREIRA, L. G. R. Valor nutritivo de Urochloa decumbens em sistemas pastoril e silvipastoril. In: CONGRESSO INTERNACIONAL DO LEITE, 13., 2015, Porto Alegre. Anais... Juiz de Fora: Embrapa Gado de Leite, 2015. 4 p.| Biblioteca(s): Embrapa Gado de Leite. |
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| 17. | | SILVESTRE, T.; PEREIRA, L. G. R.; RODRIGUES, P. H. M.; MACHADO, F. S.; TOMICH, T. R.; CAMPOS, M. M.; SANTOS, G. B.; VARGAS, M. W.; ALMEIDA, E. M.; MATA E SILVA, B. C. Enteric methane emission by Holstein, Gyr and F1 Holstein-Gyr dairy heifers. In: BIENNIAL CONFERENCE OF THE AUSTRALIAN SOCIETY OF ANIMAL PRODUCTION, 30., 2014, Canberra. Proceedings... Toowong: The Australian Society of Animal Production, 2014. p. 244| Biblioteca(s): Embrapa Gado de Leite. |
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| 18. | | SILVESTRE, T.; LIMA, M. A.; SANTOS, G. B. dos; PEREIRA, L. G. R.; MACHADO, F. S.; TOMICH, T. R.; CAMPOS, M. M.; JONKER, A.; RODRIGUES, P. H. M.; BRANDAO, V. L. N.; MARCONDES, M. I. Effects of feeding level and breed composition on intake, digestibility, and methane emissions of dairy heifers. Animals, v. 11, 586, 2021.| Biblioteca(s): Embrapa Gado de Leite. |
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| Registros recuperados : 18 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
13/09/2022 |
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Data da última atualização: |
13/09/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 4 |
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Autoria: |
SILVESTRE, T.; FERREIRA, A. L.; MACHADO, F. S.; CAMPOS, M. M.; TOMICH, T. R.; PEREIRA, L. G. R.; RODRIGUES, P. H. M.; MARCONDES, M. I. |
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Afiliação: |
TAINA SILVESTRE, Universidade de São Paulo; ALEXANDRE LIMA FERREIRA, Universidade Federal de Minas Gerais; FERNANDA SAMARINI MACHADO, CNPGL; MARIANA MAGALHAES CAMPOS, CNPGL; THIERRY RIBEIRO TOMICH, CNPGL; LUIZ GUSTAVO RIBEIRO PEREIRA, CNPGL; PAULO HENRIQUE MAZZA RODRIGUES, Universidade de São Paulo; MARCOS INACIO MARCONDES, Washington State University. |
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Título: |
Energy requirements of Holstein, Gyr, and Holstein x Gyr crossbred heifers using the respirometry technique. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Frontiers in Animal Science, v. 3, 919515, 2022. |
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DOI: |
https://doi.org/10.3389/fanim.2022.919515 |
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Idioma: |
Inglês |
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Conteúdo: |
We aimed to determine the energy requirements for maintenance and gain of 18 prepubertal dairy heifers of three breed compositions (BC; Holstein, Gyr, and Holstein × Gyr). Diets were formulated for gains of 0, 400, and 800 g/day, corresponding to 1.0×, 1.5×, and 2.0× maintenance, respectively. Each dairy BC had six animals with an initial body weight (iBW) of 219.8 ± 32 kg, 215.8 ± 33 kg, and 228.3 ± 33 kg for Holstein, Gyr, and Holstein × Gyr, respectively. The experiment was designed as a completely randomized design in a factorial scheme 3 × 3 [three BC and three feeding levels (FL)]. Digestibility and metabolism assays were performed to determine energy losses through feces and urine. Heat production was determined using the continuous measurement of oxygen consumption, carbon dioxide production, and methane emissions in respiration chambers. Energy requirements for maintenance (NEm) were calculated based on the relationship between heat production (HP) and metabolizable energy intake (MEI). The efficiency of use of metabolizable energy for maintenance (km) was obtained from the ratio between NEm and metabolizable energy requirements for maintenance. The net energy requirements for growth (NEg) were estimated from the model RE = β0 × EBW0.75 × EBGβ1, where RE is the retained energy (Mcal/day), EBW is empty body weight (kg0.75), and EBG is the empty body gain (kg/day). The efficiency of use of metabolizable energy for gain (kg) was estimated as the slope of the regression between RE and MEI for gain. Gyr heifers presented NEm 15% lower (98 kcal/kg of BW0.75) than HG crossbred animals. Holstein and crossbred heifers had similar NEm, 102 and 112 kcal/kg of BW0.75, respectively. The km was 0.71, 0.74, and 0.75 for HG, Holstein, and Gyr, respectively. Net energy requirement for gain (NEg) did not differ across BC, and a single equation was fit for all BC: RE = 0.069 × BW0.75 × BGW0.852. A single kg of 0.65 was observed for all three BC. Breed composition affected the energy requirements for maintenance and the energy partition, and those differences should be considered when estimating requirements for Gyr, Holstein × Gyr crossbred, and Holstein heifers. MenosWe aimed to determine the energy requirements for maintenance and gain of 18 prepubertal dairy heifers of three breed compositions (BC; Holstein, Gyr, and Holstein × Gyr). Diets were formulated for gains of 0, 400, and 800 g/day, corresponding to 1.0×, 1.5×, and 2.0× maintenance, respectively. Each dairy BC had six animals with an initial body weight (iBW) of 219.8 ± 32 kg, 215.8 ± 33 kg, and 228.3 ± 33 kg for Holstein, Gyr, and Holstein × Gyr, respectively. The experiment was designed as a completely randomized design in a factorial scheme 3 × 3 [three BC and three feeding levels (FL)]. Digestibility and metabolism assays were performed to determine energy losses through feces and urine. Heat production was determined using the continuous measurement of oxygen consumption, carbon dioxide production, and methane emissions in respiration chambers. Energy requirements for maintenance (NEm) were calculated based on the relationship between heat production (HP) and metabolizable energy intake (MEI). The efficiency of use of metabolizable energy for maintenance (km) was obtained from the ratio between NEm and metabolizable energy requirements for maintenance. The net energy requirements for growth (NEg) were estimated from the model RE = β0 × EBW0.75 × EBGβ1, where RE is the retained energy (Mcal/day), EBW is empty body weight (kg0.75), and EBG is the empty body gain (kg/day). The efficiency of use of metabolizable energy for gain (kg) was estimated as the slope of the ... Mostrar Tudo |
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Palavras-Chave: |
Bioenergetics; Breed composition; Indirect calorimetry; Maintenance. |
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Thesagro: |
Bovino; Calorimetria; Gado Gir; Gado Holandês; Manutenção; Raça. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1146382/1/Energy-requirements-of-Holstein-Gyr-and-Holstein-x-Gyr-crossbred-heifers-using-the-respirometry-technique.pdf
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Marc: |
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100 1 $aSILVESTRE, T.
245 $aEnergy requirements of Holstein, Gyr, and Holstein x Gyr crossbred heifers using the respirometry technique.$h[electronic resource]
260 $c2022
520 $aWe aimed to determine the energy requirements for maintenance and gain of 18 prepubertal dairy heifers of three breed compositions (BC; Holstein, Gyr, and Holstein × Gyr). Diets were formulated for gains of 0, 400, and 800 g/day, corresponding to 1.0×, 1.5×, and 2.0× maintenance, respectively. Each dairy BC had six animals with an initial body weight (iBW) of 219.8 ± 32 kg, 215.8 ± 33 kg, and 228.3 ± 33 kg for Holstein, Gyr, and Holstein × Gyr, respectively. The experiment was designed as a completely randomized design in a factorial scheme 3 × 3 [three BC and three feeding levels (FL)]. Digestibility and metabolism assays were performed to determine energy losses through feces and urine. Heat production was determined using the continuous measurement of oxygen consumption, carbon dioxide production, and methane emissions in respiration chambers. Energy requirements for maintenance (NEm) were calculated based on the relationship between heat production (HP) and metabolizable energy intake (MEI). The efficiency of use of metabolizable energy for maintenance (km) was obtained from the ratio between NEm and metabolizable energy requirements for maintenance. The net energy requirements for growth (NEg) were estimated from the model RE = β0 × EBW0.75 × EBGβ1, where RE is the retained energy (Mcal/day), EBW is empty body weight (kg0.75), and EBG is the empty body gain (kg/day). The efficiency of use of metabolizable energy for gain (kg) was estimated as the slope of the regression between RE and MEI for gain. Gyr heifers presented NEm 15% lower (98 kcal/kg of BW0.75) than HG crossbred animals. Holstein and crossbred heifers had similar NEm, 102 and 112 kcal/kg of BW0.75, respectively. The km was 0.71, 0.74, and 0.75 for HG, Holstein, and Gyr, respectively. Net energy requirement for gain (NEg) did not differ across BC, and a single equation was fit for all BC: RE = 0.069 × BW0.75 × BGW0.852. A single kg of 0.65 was observed for all three BC. Breed composition affected the energy requirements for maintenance and the energy partition, and those differences should be considered when estimating requirements for Gyr, Holstein × Gyr crossbred, and Holstein heifers.
650 $aBovino
650 $aCalorimetria
650 $aGado Gir
650 $aGado Holandês
650 $aManutenção
650 $aRaça
653 $aBioenergetics
653 $aBreed composition
653 $aIndirect calorimetry
653 $aMaintenance
700 1 $aFERREIRA, A. L.
700 1 $aMACHADO, F. S.
700 1 $aCAMPOS, M. M.
700 1 $aTOMICH, T. R.
700 1 $aPEREIRA, L. G. R.
700 1 $aRODRIGUES, P. H. M.
700 1 $aMARCONDES, M. I.
773 $tFrontiers in Animal Science$gv. 3, 919515, 2022.
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