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 | Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Leite. Para informações adicionais entre em contato com cnpgl.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
22/12/2017 |
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Data da última atualização: |
27/01/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SILVA, A. L.; MARCONDES, M. I.; DETMANN, E.; CAMPOS, M. M.; MACHADO, F. S.; VALADARES FILHO, S. C.; CASTRO, M. M. D.; DIJKSTRA, J. |
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Afiliação: |
UFV/VIÇOSA; UFV/VIÇOSA; UFV/VIÇOSA; MARIANA MAGALHAES CAMPOS, CNPGL; FERNANDA SAMARINI MACHADO, CNPGL; UFV/VIÇOSA; UFV/VIÇOSA; Universitt Wageningen. |
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Título: |
Determination of energy and protein requirements for crossbred Holstein × Gyr preweaned dairy calves. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Journal of Dairy Science, v. 100, n. 2, p. 1170-1178, 2017. |
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Idioma: |
Inglês |
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Conteúdo: |
ABSTRACT The objective was to quantify the energy and protein nutritional requirements of Holstein × Gyr crossbred preweaned dairy calves until 64 d of age. Thirty-nine Holstein × Gyr crossbred male calves with an average initial live weight (mean ± SEM; for all next values) of 36 ± 1.0 kg were used. Five calves were slaughtered at 4 d of life to estimate the animals? initial body composition (reference group). The remaining 34 calves were distributed in a completely randomized design in a 3 × 2 factorial arrangement consisting of 3 levels of milk (2, 4, or 8 L/d) and 2 levels of starter feed (presence or absence in diet). At 15 and 45 d of life, 4 animals from each treatment were subjected to digestibility trials with total collection of feces (for 72 h) and urine (for 24 h). At 64 d of age, all animals were slaughtered, their gastro-intestinal tract was washed to determine the empty body weight (EBW; kg), and their body tissues were sampled for subsequent analyses. The net energy requirement for maintenance was estimated using an exponential regression between metabolizable energy intake and heat production (both in Mcal/EBW0.75 per d) and was 74.3 ± 5.7 kcal/EBW0.75 per d, and was not affected by inclusion of starter feed in the diet. The metabolizable energy requirement for maintenance was determined at the point of zero energy retention in the body and was 105.2 ± 5.8 kcal/EBW0.75 per d. The net energy for gain was estimated using the EBW and the empty body gain (EBG; kg/d) as 0.0882 ± 0.0028 × EBW0.75 × EBG0.9050±0.0706. The metabolizable energy efficiency for gain (kg) of the milk was 57.4 ± 3.45%, and the kg of the starter feed was 39.3 ± 2.09%. The metabolizable protein requirement for maintenance was 3.52 ± 0.34 g/BW0.75 per d. The net protein required for each kilogram gained was estimated as 119.1 ± 32.9 × EBW0.0663±0.059. The metabolizable protein efficiency for gain was 77 ± 8.5% and was not affected by inclusion of starter feed in the diet. In conclusion, the energy efficiency for gain of milk is higher than that of starter and the net protein required per unit protein gain increases with empty body weight. MenosABSTRACT The objective was to quantify the energy and protein nutritional requirements of Holstein × Gyr crossbred preweaned dairy calves until 64 d of age. Thirty-nine Holstein × Gyr crossbred male calves with an average initial live weight (mean ± SEM; for all next values) of 36 ± 1.0 kg were used. Five calves were slaughtered at 4 d of life to estimate the animals? initial body composition (reference group). The remaining 34 calves were distributed in a completely randomized design in a 3 × 2 factorial arrangement consisting of 3 levels of milk (2, 4, or 8 L/d) and 2 levels of starter feed (presence or absence in diet). At 15 and 45 d of life, 4 animals from each treatment were subjected to digestibility trials with total collection of feces (for 72 h) and urine (for 24 h). At 64 d of age, all animals were slaughtered, their gastro-intestinal tract was washed to determine the empty body weight (EBW; kg), and their body tissues were sampled for subsequent analyses. The net energy requirement for maintenance was estimated using an exponential regression between metabolizable energy intake and heat production (both in Mcal/EBW0.75 per d) and was 74.3 ± 5.7 kcal/EBW0.75 per d, and was not affected by inclusion of starter feed in the diet. The metabolizable energy requirement for maintenance was determined at the point of zero energy retention in the body and was 105.2 ± 5.8 kcal/EBW0.75 per d. The net energy for gain was estimated using the EBW and the empty body gain (EBG; k... Mostrar Tudo |
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Palavras-Chave: |
Maintenance; Retained energy; Starter feed. |
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Thesaurus Nal: |
milk. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02917naa a2200253 a 4500
001 2083414
005 2023-01-27
008 2017 bl uuuu u00u1 u #d
100 1 $aSILVA, A. L.
245 $aDetermination of energy and protein requirements for crossbred Holstein × Gyr preweaned dairy calves.$h[electronic resource]
260 $c2017
520 $aABSTRACT The objective was to quantify the energy and protein nutritional requirements of Holstein × Gyr crossbred preweaned dairy calves until 64 d of age. Thirty-nine Holstein × Gyr crossbred male calves with an average initial live weight (mean ± SEM; for all next values) of 36 ± 1.0 kg were used. Five calves were slaughtered at 4 d of life to estimate the animals? initial body composition (reference group). The remaining 34 calves were distributed in a completely randomized design in a 3 × 2 factorial arrangement consisting of 3 levels of milk (2, 4, or 8 L/d) and 2 levels of starter feed (presence or absence in diet). At 15 and 45 d of life, 4 animals from each treatment were subjected to digestibility trials with total collection of feces (for 72 h) and urine (for 24 h). At 64 d of age, all animals were slaughtered, their gastro-intestinal tract was washed to determine the empty body weight (EBW; kg), and their body tissues were sampled for subsequent analyses. The net energy requirement for maintenance was estimated using an exponential regression between metabolizable energy intake and heat production (both in Mcal/EBW0.75 per d) and was 74.3 ± 5.7 kcal/EBW0.75 per d, and was not affected by inclusion of starter feed in the diet. The metabolizable energy requirement for maintenance was determined at the point of zero energy retention in the body and was 105.2 ± 5.8 kcal/EBW0.75 per d. The net energy for gain was estimated using the EBW and the empty body gain (EBG; kg/d) as 0.0882 ± 0.0028 × EBW0.75 × EBG0.9050±0.0706. The metabolizable energy efficiency for gain (kg) of the milk was 57.4 ± 3.45%, and the kg of the starter feed was 39.3 ± 2.09%. The metabolizable protein requirement for maintenance was 3.52 ± 0.34 g/BW0.75 per d. The net protein required for each kilogram gained was estimated as 119.1 ± 32.9 × EBW0.0663±0.059. The metabolizable protein efficiency for gain was 77 ± 8.5% and was not affected by inclusion of starter feed in the diet. In conclusion, the energy efficiency for gain of milk is higher than that of starter and the net protein required per unit protein gain increases with empty body weight.
650 $amilk
653 $aMaintenance
653 $aRetained energy
653 $aStarter feed
700 1 $aMARCONDES, M. I.
700 1 $aDETMANN, E.
700 1 $aCAMPOS, M. M.
700 1 $aMACHADO, F. S.
700 1 $aVALADARES FILHO, S. C.
700 1 $aCASTRO, M. M. D.
700 1 $aDIJKSTRA, J.
773 $tJournal of Dairy Science$gv. 100, n. 2, p. 1170-1178, 2017.
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Registro original: |
Embrapa Gado de Leite (CNPGL) |
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| Registros recuperados : 30 | |
| 2. |  | SILVA, L. A. C. da; SANTOS, S. A.; FATAH, E.; GARCIA, J. B. Avaliação de sementes de gramínea nativa, Mesosetum chaseae, do Pantanal utilizando o teste de tetrazólio. In: ENCONTRO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA PANTANAL, 1.; SEMANA DE BIOLOGIA, 7., 2007, Corumbá. Resumos...Corumbá: Embrapa Pantanal, 2007. (Embrapa Pantanal. Documentos, 89). 1 p.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Pantanal. |
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| 4. | | SILVA, L. A. C. da; SANTOS, S. A.; SILVA, R. A. S.; McMANNUS, C.; PETZOLD, H. Adaptacao do cavalo pantaneiro ao estresse da lida diaria de gado no Pantanal, Brasil. In: CONGRESO IBEROAMERICANO DE RAZAS CRIOLLAS, 6.; SIMPOSIO IBEROAMERICANO SOBRE CONSERVACION Y UTILIZACION DE RECURSOS ZOOGENETICOS, 4., 2003, Recife. Resumenes de Ponencias y Comunicaciones. Recife: FIRC / CYTED, 2003. nao paginado.| Biblioteca(s): Embrapa Pantanal. |
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| 5. | | SILVA, L. A. C. da; PAGLIARINI, M. S; SANTOS, S. A.; VALLE, C. B. do. Receptividade dos estigmas de acessos da grama-do-cerrado (Mesosetum chaseae Luces), Pantanal. SIMPÓSIO SOBRE RECURSOS NATURAIS E SOCIOECONÔMICOS DO PANTANAL, 5., 2010, Corumbá, MS. Anais... Corumbá: Embrapa Pantanal: UFMS; Campinas: ICS do Brasil, 2010. 1 CD-ROM SIMPAN 2010. Não Paginado| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Pantanal. |
|  |
| 7. | | SILVA, L. A. C. da; PAGLIARINI, M. S.; SANTOS, S. A.; VALLE, C. B. do. Uso de testes colorimétricos na determinação da viabilidade do grão de pólen de acessos da grama-do-cerrado, Pantanal. SIMPÓSIO SOBRE RECURSOS NATURAIS E SOCIOECONÔMICOS DO PANTANAL, 5., 2010, Corumbá, MS. Anais... Corumbá: Embrapa Pantanal: UFMS; Campinas: ICS do Brasil, 2010. 1 CD-ROM SIMPAN 2010. Não Paginado| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Pantanal. |
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| 9. | | SILVA, L. A. C. da; SANTOS, S. A.; PELLEGRIN, L. A.; COSTA, A. C. O.; PETZOLD, H. V. Comportamento de pastejo e preferência alimentar de cavalos pantaneiros usados no manejo diário do gado no Pantanal. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 41., 2004, Campo Grande, MS. A produção animal e segurança alimentar: anais. Campo Grande: SBZ, 2004. 5p. CD-ROM, AMB 049.| Biblioteca(s): Embrapa Pantanal. |
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| 10. | | SILVA, L. A. C. da; PAGLIARINI, M. S.; SANTOS, S. A.; VALLE, C. B. do; JANK, L. Determinação do número cromossômico e microsporogênese de populações naturais de Mesosetum chaseae luces, gramínea nativa do Pantanal, Brasil. In:SIMPÓSIO INTERNACIONAL SOBRE MELHORAMENTO DE FORRAGEIRAS, 2., 2009, Campo Grande, MS. [Anais]... Campo Grande, MS: Embrapa Gado de Corte, 2009. II SIMF. Comitê editorial: Liana Jank; Lucimara Chiari; Rosângela Maria Simeão Resende. 4 p. 1 CD-ROM. Resumo C 01.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Gado de Corte. |
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| 11. | | SILVA, L. A. C. da; PAGLIARINI, M. S.; SANTOS, S. A.; VALLE, C. B. do; JANK, L. Determinação do número cromossômico e microsporogênese de populações naturais de Mesosetum chaseae luces, gramínea nativa do Pantanal, Brasil. In:SIMPÓSIO INTERNACIONAL SOBRE MELHORAMENTO DE FORRAGEIRAS, 2., 2009, Campo Grande, MS. [Anais]... Campo Grande, MS: Embrapa Gado de Corte, 2009. II SIMF. Comitê editorial: Liana Jank; Lucimara Chiari; Rosângela Maria Simeão Resende. 4 p. 1 CD-ROM. Resumo C 01.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Pantanal. |
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| 13. | | SANTOS, S. A.; Silva, L. A. C. da; CARDOSO, E. L.; JANK, L.; Pagliarini, M. S.; VALLE, C. B. do. Manejo on farm da grama-do-cerrado (Mesosetum chaseae) no pantanal. In: CONGRESSO BRASILEIRO DE RECURSOS GENÉTICOS; WORKSHOP EM BIOPROSPECÇÃO E CONSERVAÇÃO DE PLANTAS NATIVAS DO SEMI-ÁRIDO, 3.; WORKSHOP INTERNACIONAL SOBRE BIOENERGIA E MEIO AMBIENTE, 2010, Salvador. Bancos de germoplasma: descobrir a riqueza, garantir o futuro: anais. Brasília, DF: Embrapa Recursos Genéticos e Biotecnologia, 2010. 550 p. (Embrapa Recursos Genéticos e Biotecnologia. Documentos, 304). Editora técnica Clara Oliveira Goedert. p. 447| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Corte. |
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| 14. | | SANTOS, S. A.; SILVA, L. A. C. da; CARDOSO, E. L.; JANK, L.; PAGLIARINI, M. S.; VALLE, C. B. do. Manejo on farm da grama-do-cerrado (Mesosetum chaseae) no Pantanal. In: CONGRESSO BRASILEIRO DE RECURSOS GENÉTICOS, 2010, Salvador. [Anais...]. Brasília, DF: Embrapa Recursos Genéticos e Biotecnologia, 2010. (Embrapa Recursos Genéticos e Biotecnologia. Documentos, 304).| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Pantanal. |
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| 15. | | SILVA, L. A. C. da; SANTOS, S. A.; COSTA, C.; COMASTRI FILHO, J. A.; GARCIA, J. B. Viabilidade das sementes da gramínea nativa grama-do-cerrado, sub-região da Nhecolândia, Pantanal. In: SIMPÓSIO INTERNACIONAL SOBRE MELHORAMENTO DE FORRAGEIRAS, 2007, Campo Grande, MS. Anais... Campo Grande: Embrapa Gado de Corte, 2007. 3 p.| Tipo: Artigo em Anais de Congresso / Nota Técnica | Circulação/Nível: -- - -- |
| Biblioteca(s): Embrapa Pantanal. |
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| 17. | | SILVA, L. A. C. da; SANTOS, S. A.; McMANNUS, C.; SILVA, R. A. S.; SOARES, A. C. RAVAGLIA, E. Tolerancia ao calor de cavalos pantaneiros usados na lida diaria do gado no Pantanal, Brasil In: CONGRESO IBEROAMERICANO DE RAZAS CRIOLLAS, 6.; SIMPOSIO IBEROAMERICANO SOBRE CONSERVACION Y UTILIZACION DE RECURSOS ZOOGENETICOS, 4., 2003, Recife. Resumenes de Ponencias y Comunicaciones. Recife: FIRC / CYTED, 2003. nao paginado.| Biblioteca(s): Embrapa Pantanal. |
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| 18. | | SANTOS, S. A.; SILVA, L. A. C. da; ABREU, U. G. P. de; JANK, L.; OGIHARA, L. K.; PARRILI, M.; MATSUHARA, S. A. Avaliação de descritores fenotípicos de populações da Grama-do-cerrado no pico de seca, Pantanal. In: SIMPÓSIO INTERNACIONAL SOBRE MELHORAMENTO DE FORRAGEIRAS, 2007, Campo Grande, MS. Palestras_resumos [do]... Campo Grande, MS: Embrapa Gado de Corte, 2007. 3 p. 1 CD-ROM. CNPGC.| Tipo: Artigo em Anais de Congresso / Nota Técnica | Circulação/Nível: -- - -- |
| Biblioteca(s): Embrapa Gado de Corte. |
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| 19. | | SANTOS, S. A.; SILVA, L. A. C. da; ABREU, U. G. P. de; JANK, L.; OGIHARA, L. K.; PARRILI, M.; MATSUHARA, S. A. Avaliação de descritores fenotípicos de populações da Grama-do-Cerrado no pico de seca, Pantanal. In: SIMPÓSIO INTERNACIONAL SOBRE MELHORAMENTO DE FORRAGEIRAS, 2007, Campo Grande, MS. Anais... Campo Grande: Gado de Corte, 2007. 3 p.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Pantanal. |
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| 20. | | SANTOS, S. A.; SILVA, L. A. C. DA.; JANK, L.; MEIRELLES, A. C. S.; JORGE, M. H. A.; GARCIA, J. B. Caracterização dos perfilhos reprodutivos de acessos de Mesosetum chaseae, gramínea nativa do Pantanal. In: CONGRESSO BRASILEIRO DE RECURSOS GENÉTICOS, 2., 2012, Belém, PA. Anais... [S.l.]: Sociedade Brasileira de Recursos Genéticos, 2012. 4 p. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Corte. |
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| Registros recuperados : 30 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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