| |
|
|
| Registros recuperados : 81 | |
| 14. |  | OLIVEIRA, T. S. de; COSTA, L. M. da; CRUZ, C. D.; HORN, H. A. Metais pesados como indicadores de materiais de origem em uma topolitosequência do triangulo mineiro, Estado de Minas Gerais. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 34, n. 8, p. 1451-65, ago. 1999 Título em inglês: Heavy metals as indicators of parent rocks in a topolithosequence in Triângulo Mineiro, State of Minas Gerais, Brazil.| Biblioteca(s): Embrapa Unidades Centrais. |
|    |
| Registros recuperados : 81 | |
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Gado de Leite. |
|
Data corrente: |
09/12/2016 |
|
Data da última atualização: |
30/01/2023 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
B - 1 |
|
Autoria: |
RODRIGUES, J. P. P.; LIMA, J. C. M.; CASTRO, M. M. D.; VALADARES FILHO, S. de C.; CAMPOS, M. M.; CHIZOTTI, M. L.; MARCONDES, M. I. |
|
Afiliação: |
João Paulo Pacheco Rodrigues, UFV; Jessika Carolina Moutinho Lima, UFV; Marcelo Messias Duarte Castro, UFV; Sebastião de Campos Valadares Filho, UFV; MARIANA MAGALHAES CAMPOS, CNPGL; Mário Luiz Chizzotti, UFV; Marcos Inácio Marcondes, UFV. |
|
Título: |
Energy and protein requirements of young Holstein calves in tropical condition. |
|
Ano de publicação: |
2016 |
|
Fonte/Imprenta: |
Tropical Animal Health and Production, n. 48, p. 1387-1394, 2016. |
|
Idioma: |
Inglês |
|
Conteúdo: |
Our objective was to estimate the energy and protein requirements of Holstein young calves up to 87 days old. Forty-two Holstein calves aged 4 days were used. From these, ten were randomly selected and slaughtered to compose the baseline slaughter (BS) group. The remaining calves were randomly assigned to eight treatments in a 4 × 2 factorial using a completely randomized design. The treatments were 2, 4, 6, and 8 kg/day of milk (297 g/kg CP; 319 g/kg of fat) fed twice daily, and then harvested at 59 or 87 days of age. Calves were fed a starter (193 g/kg CP; 133 g/kg NDF) ad libitum in all treatments. The calves slaughtered at 87 days of age had milk replaced by Coast-cross (Cynodoon sp.) hay (125 g/kg CP; 728 g/kg NDF). The net requirement of energy for maintenance (NEm) was 0.36 MJ/kg EBWG, with efficiency of utilization of energy for maintenance (km) of 59.4 %. The equation obtained to estimate the net requirement of energy for gain (NEg; MJ/d) was 4.40 × EBW0.099, with the efficiency of utilization of energy for gain (kg) equal to 46.5 %. The observed requirements of net and metabolizable protein for maintenance (NPm and MPm) were 3.67 and 3.88 g/kg BW0.75, respectively. The efficiency of use of metabolizable protein for maintenance (kpm) was 94.6 %. The predicted requirements were higher than those observed in the literature, and this study demonstrated that the requirements of newborn calves are higher than the recommended. |
|
Palavras-Chave: |
Comparative slaughter; Efficiency of utilization; Growth; Maintenance; Metabolizable protein. |
|
Thesaurus NAL: |
Dairy calves; Holstein; metabolizable energy; Slaughter. |
|
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/151547/1/Cnpgl-2016-TropAnimHealthProd-Energy.pdf
|
|
Marc: |
LEADER 02339naa a2200301 a 4500
001 2058344
005 2023-01-30
008 2016 bl uuuu u00u1 u #d
100 1 $aRODRIGUES, J. P. P.
245 $aEnergy and protein requirements of young Holstein calves in tropical condition.$h[electronic resource]
260 $c2016
520 $aOur objective was to estimate the energy and protein requirements of Holstein young calves up to 87 days old. Forty-two Holstein calves aged 4 days were used. From these, ten were randomly selected and slaughtered to compose the baseline slaughter (BS) group. The remaining calves were randomly assigned to eight treatments in a 4 × 2 factorial using a completely randomized design. The treatments were 2, 4, 6, and 8 kg/day of milk (297 g/kg CP; 319 g/kg of fat) fed twice daily, and then harvested at 59 or 87 days of age. Calves were fed a starter (193 g/kg CP; 133 g/kg NDF) ad libitum in all treatments. The calves slaughtered at 87 days of age had milk replaced by Coast-cross (Cynodoon sp.) hay (125 g/kg CP; 728 g/kg NDF). The net requirement of energy for maintenance (NEm) was 0.36 MJ/kg EBWG, with efficiency of utilization of energy for maintenance (km) of 59.4 %. The equation obtained to estimate the net requirement of energy for gain (NEg; MJ/d) was 4.40 × EBW0.099, with the efficiency of utilization of energy for gain (kg) equal to 46.5 %. The observed requirements of net and metabolizable protein for maintenance (NPm and MPm) were 3.67 and 3.88 g/kg BW0.75, respectively. The efficiency of use of metabolizable protein for maintenance (kpm) was 94.6 %. The predicted requirements were higher than those observed in the literature, and this study demonstrated that the requirements of newborn calves are higher than the recommended.
650 $aDairy calves
650 $aHolstein
650 $ametabolizable energy
650 $aSlaughter
653 $aComparative slaughter
653 $aEfficiency of utilization
653 $aGrowth
653 $aMaintenance
653 $aMetabolizable protein
700 1 $aLIMA, J. C. M.
700 1 $aCASTRO, M. M. D.
700 1 $aVALADARES FILHO, S. de C.
700 1 $aCAMPOS, M. M.
700 1 $aCHIZOTTI, M. L.
700 1 $aMARCONDES, M. I.
773 $tTropical Animal Health and Production$gn. 48, p. 1387-1394, 2016.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Gado de Leite (CNPGL) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
