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Registros recuperados : 47 | |
1. | | GODOY, A. R.; CASTRO, M. M.; CARDOSO, A. I. I. Poda do meristema apical e frutificação de pepino. Horticultura Brasileira, Brasília, v. 22, n. 2, jul. 2004. Suplemento 2. Trabalho apresentado no 44º Congresso Brasileiro de Olericultura, 2004. Publicado também como resumo em: Horticultura Brasileira, Brasília, v. 22, n. 2, p. 447, jul. 2004. Suplemento 1. Biblioteca(s): Embrapa Hortaliças. |
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2. | | GODOY, A. R.; CASTRO, M. M.; CARDOSO, I. I. Desempenho produtivo, partenocarpia e expressão secual de linhagens de pepino caipira em ambiente protegido. Horticultura Brasileira, Brasília, DF, v. 27, n. 2, p. 150-154, abr./jun. 2009. Biblioteca(s): Embrapa Hortaliças. |
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3. | | CASTRO, M. M.; GODOY, A. R.; CARDOSO, A. I. I. Qualidade de sementes de jiló, cultivar Verde Comprido em função da idade e do armazenamento dos frutos. Horticultura Brasileira, Brasília, v. 22, n. 2, jul. 2004. Suplemento 2. Trabalho apresentado no 44º Congresso Brasileiro de Olericultura, 2004. Publicado também como resumo em: Horticultura Brasileira, Brasília, v. 22, n. 2, p. 419, jul. 2004. Suplemento 1. Biblioteca(s): Embrapa Hortaliças. |
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4. | | CASTRO, M. M.; GODOY, A. R.; CARDOSO, A. I. I. Qualidade de sementes de jiló, 'Morro Grande' em função da idade e do armazenamento dos frutos. Horticultura Brasileira, Brasília, v. 22, n. 2, jul. 2004. Suplemento 2. Trabalho apresentado no 44º Congresso Brasileiro de Olericultura, 2004. Publicado também como resumo em: Horticultura Brasileira, Brasília, v. 22, n. 2, p. 418-419, jul. 2004. Suplemento 1. Biblioteca(s): Embrapa Hortaliças. |
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5. | | CASTRO, M. M.; GODOY, A. R.; CARDOSO, A. I. I. Qualidade de sementes de quiabo em função da idade e do armazenamento dos frutos. Horticultura Brasileira, Brasília, v. 22, n. 2, jul. 2004. Suplemento 2. Trabalho apresentado no 44º Congresso Brasileiro de Olericultura, 2004. Publicado também como resumo em: Horticultura Brasileira, Brasília, v. 22, n. 2, p. 418, jul. 2004. Suplemento 1. Biblioteca(s): Embrapa Hortaliças. |
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6. | | CASTRO, M. M.; MARTINS, C. C.; MARTINELLI-SENEME, A.; NAKAGAWA, J. Metodologia para a avaliação do vigor de sementes de tomate (Lycopersicon esculentum Mill). Informativo Abrates, Londrina, v. 13, n. 3, p. 432, set. 2003. Trabalho apresentado no 13º Congresso Brasileiro de Sementes, 2003, Londrina. Resumo. Biblioteca(s): Embrapa Hortaliças. |
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7. | | MARTINS, C. C.; CASTRO, M. M.; SENEME, A. M.; NAKAGAWA, J. Metodologia para a avaliação do vigor de sementes de tomate. Horticultura Brasileira, Brasília, DF, v. 24, n. 3, p. 201-304, jul./set. 2006. Biblioteca(s): Embrapa Hortaliças. |
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9. | | OVIEDO, V. R. S.; GODOY, A. R.; CASTRO, M. M.; CARDOSO, A. I. I. Depresão endogâmica na produção de sementes de uma população de pepino japonês. Horticultura Brasileira, Brasília, v. 22, n. 2, jul. 2004. Suplemento 2. CD-ROM. Trabalho apresentado no 44º Congresso Brasileiro de Olericultura, 2004. Publicado também como resumo em: Horticultura Brasileira, Brasília, v. 22, n. 2, p. 358, jul. 2004. Suplemento 1. Biblioteca(s): Embrapa Hortaliças. |
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12. | | MARTINS, C. C.; MARTINELLI-SENEME, A.; CASTRO, M. M.; NAKAGAWA, J.; CAVARIANI, C. Comparação entre métodos para a avaliação do vigor de lotes de sementes de couve-brócolos (Brassica oleracea L. var. italica Plenk). Informativo Abrates, Londrina, v. 13, n. 3, p. 419, set. 2003. Trabalho apresentado no 13º Congresso Brasileiro de Sementes, 2003, Londrina. Resumo. Biblioteca(s): Embrapa Hortaliças. |
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14. | | KANO, C.; GODOY, A. R.; HIGUTI, A. R. O.; CASTRO, M. M.; CARDOSO, A. I. I. Produção de couve-brócolo em função do tipo de bandeja e idade das mudas. Ciência e Agrotecnologia, Lavras, v. 32, n. 1, p. 110-114, fev. 2008. Biblioteca(s): Embrapa Hortaliças. |
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15. | | GODOY, A. R.; OVIEDO, V. R. S.; CASTRO, M. M.; CARDOSO, A. I. I. Produção de sementes em função da endogamia em uma população de pepino caipira. Horticultura Brasileira, Brasília, v. 22, n. 2, jul. 2004. Suplemento 2. Trabalho apresentado no 44º Congresso Brasileiro de Olericultura, 2004. Publicado também como resumo em: Horticultura Brasileira, Brasília, v. 22, n. 2, p. 460, jul. 2004. Suplemento. Biblioteca(s): Embrapa Hortaliças. |
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16. | | MARTINELLI-SENEME, A.; MARTINS, C. C.; CASTRO, M. M.; NAKAGAWA, J. Avaliação da qualidade de sementes de tomate (Lycopersicon esculentum Mill): sementes peliculizadas e não peliculizadas. Informativo Abrates, Londrina, v. 13, n. 3, p. 432, set. 2003. Trabalho apresentado no 13º Congresso Brasileiro de Sementes, 2003, Londrina. Resumo. Biblioteca(s): Embrapa Hortaliças. |
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17. | | MARTINELLI-SENEME, A.; MARTINS, C. C.; CASTRO, M. M.; NAGAGAWA, J. Avaliação do vigor de sementes peliculizadas de tomate (Lycopersicon esculentum L.). Informativo Abrates, Londrina, v. 13, n. 3, p. 431, set. 2003. Trabalho apresentado no 13º Congresso Brasileiro de Sementes, 2003, Londrina. Resumo. Biblioteca(s): Embrapa Hortaliças. |
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19. | | SENA, L. de O.; VIANA, E. de S.; SOUZA, A. dos S.; CASTRO, M. M.; REIS, R. C. Obtenção de farinha de bananas e plátanos verdes e avaliação dos atributos de qualidade. In: JORNADA CIENTÍFICA EMBRAPA MANDIOCA E FRUTICULTURA, 10., 2016: Cruz das Almas, BA. Traduzindo ciência para o mundo : resumos. Brasília, DF : Embrapa, 2016. Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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Registros recuperados : 47 | |
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Registro Completo
Biblioteca(s): |
Embrapa Gado de Leite. |
Data corrente: |
22/12/2017 |
Data da última atualização: |
27/01/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
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. |
Afiliação: |
UFV/VIÇOSA; UFV/VIÇOSA; UFV/VIÇOSA; MARIANA MAGALHAES CAMPOS, CNPGL; FERNANDA SAMARINI MACHADO, CNPGL; UFV/VIÇOSA; UFV/VIÇOSA; Universitt Wageningen. |
Título: |
Determination of energy and protein requirements for crossbred Holstein × Gyr preweaned dairy calves. |
Ano de publicação: |
2017 |
Fonte/Imprenta: |
Journal of Dairy Science, v. 100, n. 2, p. 1170-1178, 2017. |
Idioma: |
Inglês |
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 |
Palavras-Chave: |
Maintenance; Retained energy; Starter feed. |
Thesaurus NAL: |
milk. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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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