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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: |
07/07/2017 |
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Data da última atualização: |
09/08/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
OSS, D. B.; MACHADO, F. S.; TOMICH, T. R.; PEREIRA, L. G. R.; CAMPOS, M. M.; CASTRO, M. M. D; SILVA, T. E. DA; MARCONDES, M. I. |
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Afiliação: |
D. B. Oss, UFV/VIÇOSA; FERNANDA SAMARINI MACHADO, CNPGL; THIERRY RIBEIRO TOMICH, CNPGL; LUIZ GUSTAVO RIBEIRO PEREIRA, CNPGL; MARIANA MAGALHAES CAMPOS, CNPGL; M.M. D. Castro, UFV/VIÇOSA; T. E. da Silva, UFV/VIÇOSA; M. I. Marcondes, UFV/VIÇOSA. |
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Título: |
Energy and protein requirements of crossbred (Holstein x Gyr) growing bulls. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Journal of Dairy Science, v. 100, n. 4, p. 2603-2613, 2017. |
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DOI: |
https://doi.org/10.3168/jds.2016-11414 |
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Idioma: |
Inglês |
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Conteúdo: |
The objective of this study was to estimate the energy and protein requirements of crossbred (Holstein × Gyr) growing bulls. Twenty-four 10-mo-old bulls [initial body weight (BW) = 184 ± 23.4 kg] were used in a comparative slaughter trial. Six bulls were slaughtered at the beginning of the experiment as the reference group, to estimate initial empty body weight (EBW) and energy and protein contents of the remaining animals. The remaining bulls were assigned to a completely randomized design with 3 levels of dry matter intake and 6 replicates. The levels of dry matter intake were 1.2% of BW, 1.8% of BW, and ad libitum to target orts equal to 5% of the total amount that was fed. The remaining bulls were slaughtered at the end of the experiment. The bulls were fed a diet consisting of 59.6% corn silage and 40.4% concentrate on a dry matter basis. The equation that determined the relationship between EBW and BW was EBW = (0.861 ± 0.0031) × BW. The relationship between empty body gain (EBG) and average daily gain (ADG) was demonstrated by the following equation: EBG = (0.934 ± 0.0111) × ADG. Net energy for maintenance (NEM) was 74.8 ± 2.89 kcal/kg of EBW0.75 per day, and metabolizable energy for maintenance (MEM) was 120.8 kcal/kg of EBW0.75 per day. The detected efficiency of use of metabolizable energy for maintenance (km) was 61.9%. The equation used to estimate net energy for gain (NEG) was as follows: NEG = (0.049 ± 0.0011) × EBW0.75 × EBG0.729 ± 0.0532. The efficiency of use of metabolizable energy for gain (kg) was 35.7%. The metabolizable protein for maintenance (MPM) was 3.05 g/kg of BW0.75. The equation used to estimate net protein requirements for gain (NPG) = (87.138 ± 65.1378 × EBG) + [(40.436 ± 21.3640) × NEG]. The efficiency of use of metabolizable protein for gain (k) was 35.7%. We concluded that the estimates of energy and protein requirements presented herein are more appropriate than the National Research Council dairy cattle model and the Brazilian BR-CORTE system to balance the diets of crossbred (Holstein × Gyr) growing bulls. MenosThe objective of this study was to estimate the energy and protein requirements of crossbred (Holstein × Gyr) growing bulls. Twenty-four 10-mo-old bulls [initial body weight (BW) = 184 ± 23.4 kg] were used in a comparative slaughter trial. Six bulls were slaughtered at the beginning of the experiment as the reference group, to estimate initial empty body weight (EBW) and energy and protein contents of the remaining animals. The remaining bulls were assigned to a completely randomized design with 3 levels of dry matter intake and 6 replicates. The levels of dry matter intake were 1.2% of BW, 1.8% of BW, and ad libitum to target orts equal to 5% of the total amount that was fed. The remaining bulls were slaughtered at the end of the experiment. The bulls were fed a diet consisting of 59.6% corn silage and 40.4% concentrate on a dry matter basis. The equation that determined the relationship between EBW and BW was EBW = (0.861 ± 0.0031) × BW. The relationship between empty body gain (EBG) and average daily gain (ADG) was demonstrated by the following equation: EBG = (0.934 ± 0.0111) × ADG. Net energy for maintenance (NEM) was 74.8 ± 2.89 kcal/kg of EBW0.75 per day, and metabolizable energy for maintenance (MEM) was 120.8 kcal/kg of EBW0.75 per day. The detected efficiency of use of metabolizable energy for maintenance (km) was 61.9%. The equation used to estimate net energy for gain (NEG) was as follows: NEG = (0.049 ± 0.0011) × EBW0.75 × EBG0.729 ± 0.0532. The efficiency of us... Mostrar Tudo |
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Palavras-Chave: |
Company growth; Food and nutrition; Growth of calves; Holstein-Friesian cattle. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02896naa a2200265 a 4500
001 2072192
005 2022-08-09
008 2017 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.3168/jds.2016-11414$2DOI
100 1 $aOSS, D. B.
245 $aEnergy and protein requirements of crossbred (Holstein x Gyr) growing bulls.$h[electronic resource]
260 $c2017
520 $aThe objective of this study was to estimate the energy and protein requirements of crossbred (Holstein × Gyr) growing bulls. Twenty-four 10-mo-old bulls [initial body weight (BW) = 184 ± 23.4 kg] were used in a comparative slaughter trial. Six bulls were slaughtered at the beginning of the experiment as the reference group, to estimate initial empty body weight (EBW) and energy and protein contents of the remaining animals. The remaining bulls were assigned to a completely randomized design with 3 levels of dry matter intake and 6 replicates. The levels of dry matter intake were 1.2% of BW, 1.8% of BW, and ad libitum to target orts equal to 5% of the total amount that was fed. The remaining bulls were slaughtered at the end of the experiment. The bulls were fed a diet consisting of 59.6% corn silage and 40.4% concentrate on a dry matter basis. The equation that determined the relationship between EBW and BW was EBW = (0.861 ± 0.0031) × BW. The relationship between empty body gain (EBG) and average daily gain (ADG) was demonstrated by the following equation: EBG = (0.934 ± 0.0111) × ADG. Net energy for maintenance (NEM) was 74.8 ± 2.89 kcal/kg of EBW0.75 per day, and metabolizable energy for maintenance (MEM) was 120.8 kcal/kg of EBW0.75 per day. The detected efficiency of use of metabolizable energy for maintenance (km) was 61.9%. The equation used to estimate net energy for gain (NEG) was as follows: NEG = (0.049 ± 0.0011) × EBW0.75 × EBG0.729 ± 0.0532. The efficiency of use of metabolizable energy for gain (kg) was 35.7%. The metabolizable protein for maintenance (MPM) was 3.05 g/kg of BW0.75. The equation used to estimate net protein requirements for gain (NPG) = (87.138 ± 65.1378 × EBG) + [(40.436 ± 21.3640) × NEG]. The efficiency of use of metabolizable protein for gain (k) was 35.7%. We concluded that the estimates of energy and protein requirements presented herein are more appropriate than the National Research Council dairy cattle model and the Brazilian BR-CORTE system to balance the diets of crossbred (Holstein × Gyr) growing bulls.
653 $aCompany growth
653 $aFood and nutrition
653 $aGrowth of calves
653 $aHolstein-Friesian cattle
700 1 $aMACHADO, F. S.
700 1 $aTOMICH, T. R.
700 1 $aPEREIRA, L. G. R.
700 1 $aCAMPOS, M. M.
700 1 $aCASTRO, M. M. D
700 1 $aSILVA, T. E. DA
700 1 $aMARCONDES, M. I.
773 $tJournal of Dairy Science$gv. 100, n. 4, p. 2603-2613, 2017.
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Registro original: |
Embrapa Gado de Leite (CNPGL) |
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Registro Completo
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Biblioteca(s): |
Embrapa Meio-Norte. |
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Data corrente: |
22/12/2020 |
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Data da última atualização: |
26/01/2021 |
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Tipo da produção científica: |
Documentos |
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Autoria: |
BARRETO, A. L. H.; LOPES, M. T. do R.; PEREIRA, F. de M.; SOUZA, B. de A. |
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Afiliação: |
ANA LUCIA HORTA BARRETO, CPAMN; MARIA TERESA DO REGO LOPES, CPAMN; FABIA DE MELLO PEREIRA, CPAMN; BRUNO DE ALMEIDA SOUZA, CPAMN. |
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Título: |
Controle de Qualidade da Própolis. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Teresina: Embrapa Meio-Norte, 2020. |
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Páginas: |
48 p. |
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Série: |
(Embrapa Meio-Norte. Documentos, 268). |
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ISSN: |
0104-866X |
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Idioma: |
Português |
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Conteúdo: |
Própolis: definição e características; Elaboração e utilização da própolis; Composição da própolis; Produção da própolis; Controle de qualidade da própolis; Preparo de amostras de própolis para realização de análises físico-químicas; Obtenção do extrato etanólico de própolis por Soxhlet; Análises Físico-químicas; Perda por dessecação (umidade); Determinação de cinzas (material mineral); Massa mecânica (resíduo insolúvel em etanol); Determinação de cera; Determinação de compostos fenólicos pelo método de Folin-Denis; Determinação do teor de flavonoides; Determinação da atividade de oxidação (índice de oxidação); Determinação de resíduo seco (solúveis em etanol). |
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Palavras-Chave: |
Análise físico-química. |
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Thesagro: |
Controle de Qualidade; Própolis; Sistema de Produção. |
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Thesaurus NAL: |
Chemical analysis; Honey and bee products; Quality control. |
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Categoria do assunto: |
Q Alimentos e Nutrição Humana |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/220624/1/Doc268-Controle-Qualidade-Propolis-AINFO-1.pdf
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Marc: |
LEADER 01476nam a2200265 a 4500
001 2128584
005 2021-01-26
008 2020 bl uuuu u0uu1 u #d
022 $a0104-866X
100 1 $aBARRETO, A. L. H.
245 $aControle de Qualidade da Própolis.$h[electronic resource]
260 $aTeresina: Embrapa Meio-Norte$c2020
300 $a48 p.
490 $a(Embrapa Meio-Norte. Documentos, 268).
520 $aPrópolis: definição e características; Elaboração e utilização da própolis; Composição da própolis; Produção da própolis; Controle de qualidade da própolis; Preparo de amostras de própolis para realização de análises físico-químicas; Obtenção do extrato etanólico de própolis por Soxhlet; Análises Físico-químicas; Perda por dessecação (umidade); Determinação de cinzas (material mineral); Massa mecânica (resíduo insolúvel em etanol); Determinação de cera; Determinação de compostos fenólicos pelo método de Folin-Denis; Determinação do teor de flavonoides; Determinação da atividade de oxidação (índice de oxidação); Determinação de resíduo seco (solúveis em etanol).
650 $aChemical analysis
650 $aHoney and bee products
650 $aQuality control
650 $aControle de Qualidade
650 $aPrópolis
650 $aSistema de Produção
653 $aAnálise físico-química
700 1 $aLOPES, M. T. do R.
700 1 $aPEREIRA, F. de M.
700 1 $aSOUZA, B. de A.
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Embrapa Meio-Norte (CPAMN) |
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