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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
13/01/2020 |
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Data da última atualização: |
06/02/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
LAGE, C. F. DE A.; COELHO, S. G.; DINIZ NETO, H. DO C.; MALACCO, V. M. R.; RODRIGUES, J. P. P.; SACRAMENTO, J. P.; MACHADO, F. S.; PEREIRA, L. G. R.; TOMICH, T. R.; CAMPOS, M. M. |
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Afiliação: |
Camila Flávia de Assis Lage; Sandra Gesteira Coelho; Hilton do Carmo Diniz Neto; Victor Marco Rocha Malacco; João Paulo Pacheco Rodrigues; João Paulo Sacramento; FERNANDA SAMARINI MACHADO, CNPGL; LUIZ GUSTAVO RIBEIRO PEREIRA, CNPGL; THIERRY RIBEIRO TOMICH, CNPGL; MARIANA MAGALHAES CAMPOS, CNPGL. |
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Título: |
Relationship between feed efficiency indexes and performance, body measurements, digestibility, energy partitioning, and nitrogen partitioning in pre-weaning dairy heifers. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Plos One, v. 14, n. 10, article e0223368, 2019. |
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DOI: |
https://doi.org/10.1371/journal.pone.0223368 |
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Idioma: |
Inglês |
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Conteúdo: |
The objectives of this study were: 1) to classify animals into groups of high and low feed efficiency using two feed efficiency indexes (Residual feed intake (RFI) and residual feed intake and body weight gain (RIG)), and 2) to evaluate if pre-weaning heifer calves divergent for feed efficiency indexes exhibit differences in performance, body measurements, digestibility, energy partitioning, and nitrogen partitioning. A total of 32 Gyr heifer calves were enrolled in a 63-d trial and classified into two feed efficiency (FE) groups based on RFI and RIG (mean ± 0.5 SD). The groups were classified as high efficiency (HE) RFI (HE RFI, n = 9; HE RIG, n = 10), and low efficiency (LE) RFI (LE RFI, n = 10; LE RIG, n = 11). The remaining animals were classified as intermediate (n = 13 (RFI) and n = 11 (RIG)). HE and LE calves had RFI values of?0.052 and 0.049 kg/d (P < 0.05), respectively. The HE RFI group consumed 8.9% less solid diet than the LE RFI group. HE RFI animals exhibited an increased digestibility of crude protein and ether extract and tended to have greater total dry and organic matter digestibility. LE RFI animals had greater gross energy and nitrogen intake, though greater fecal losses resulted in a tendency to reduce energy and nitrogen use efficiency. HE and LE calves had RIG values of 0.080 and -0.077kg/d (P ? 0.01), respectively. HE RIG animals exhibited greater average daily gain (9.4%), body weight (BW), and heart girth, though HE RIG group exhibited narrower hip width. HE RIG animals tended to have greater ether extract digestibility but greater methane losses (% of gross energy). HE RFI in pre-weaning heifers seems to be related to differences in digestibility. Divergent animals for RIG during the assessed phase appear to differ in body measurements, which may be related to differences in the composition of the gain. MenosThe objectives of this study were: 1) to classify animals into groups of high and low feed efficiency using two feed efficiency indexes (Residual feed intake (RFI) and residual feed intake and body weight gain (RIG)), and 2) to evaluate if pre-weaning heifer calves divergent for feed efficiency indexes exhibit differences in performance, body measurements, digestibility, energy partitioning, and nitrogen partitioning. A total of 32 Gyr heifer calves were enrolled in a 63-d trial and classified into two feed efficiency (FE) groups based on RFI and RIG (mean ± 0.5 SD). The groups were classified as high efficiency (HE) RFI (HE RFI, n = 9; HE RIG, n = 10), and low efficiency (LE) RFI (LE RFI, n = 10; LE RIG, n = 11). The remaining animals were classified as intermediate (n = 13 (RFI) and n = 11 (RIG)). HE and LE calves had RFI values of?0.052 and 0.049 kg/d (P < 0.05), respectively. The HE RFI group consumed 8.9% less solid diet than the LE RFI group. HE RFI animals exhibited an increased digestibility of crude protein and ether extract and tended to have greater total dry and organic matter digestibility. LE RFI animals had greater gross energy and nitrogen intake, though greater fecal losses resulted in a tendency to reduce energy and nitrogen use efficiency. HE and LE calves had RIG values of 0.080 and -0.077kg/d (P ? 0.01), respectively. HE RIG animals exhibited greater average daily gain (9.4%), body weight (BW), and heart girth, though HE RIG group exhibited narrower hip ... Mostrar Tudo |
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Palavras-Chave: |
Bioenergetics; Feed efficiency; Hip. |
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Thesaurus Nal: |
Diet; Methane; Milk; Nutrients. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/208602/1/Artigo-PlosOne-Samarini-Relationship.pdf
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Marc: |
LEADER 02870naa a2200325 a 4500
001 2118613
005 2024-02-06
008 2019 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1371/journal.pone.0223368$2DOI
100 1 $aLAGE, C. F. DE A.
245 $aRelationship between feed efficiency indexes and performance, body measurements, digestibility, energy partitioning, and nitrogen partitioning in pre-weaning dairy heifers.$h[electronic resource]
260 $c2019
520 $aThe objectives of this study were: 1) to classify animals into groups of high and low feed efficiency using two feed efficiency indexes (Residual feed intake (RFI) and residual feed intake and body weight gain (RIG)), and 2) to evaluate if pre-weaning heifer calves divergent for feed efficiency indexes exhibit differences in performance, body measurements, digestibility, energy partitioning, and nitrogen partitioning. A total of 32 Gyr heifer calves were enrolled in a 63-d trial and classified into two feed efficiency (FE) groups based on RFI and RIG (mean ± 0.5 SD). The groups were classified as high efficiency (HE) RFI (HE RFI, n = 9; HE RIG, n = 10), and low efficiency (LE) RFI (LE RFI, n = 10; LE RIG, n = 11). The remaining animals were classified as intermediate (n = 13 (RFI) and n = 11 (RIG)). HE and LE calves had RFI values of?0.052 and 0.049 kg/d (P < 0.05), respectively. The HE RFI group consumed 8.9% less solid diet than the LE RFI group. HE RFI animals exhibited an increased digestibility of crude protein and ether extract and tended to have greater total dry and organic matter digestibility. LE RFI animals had greater gross energy and nitrogen intake, though greater fecal losses resulted in a tendency to reduce energy and nitrogen use efficiency. HE and LE calves had RIG values of 0.080 and -0.077kg/d (P ? 0.01), respectively. HE RIG animals exhibited greater average daily gain (9.4%), body weight (BW), and heart girth, though HE RIG group exhibited narrower hip width. HE RIG animals tended to have greater ether extract digestibility but greater methane losses (% of gross energy). HE RFI in pre-weaning heifers seems to be related to differences in digestibility. Divergent animals for RIG during the assessed phase appear to differ in body measurements, which may be related to differences in the composition of the gain.
650 $aDiet
650 $aMethane
650 $aMilk
650 $aNutrients
653 $aBioenergetics
653 $aFeed efficiency
653 $aHip
700 1 $aCOELHO, S. G.
700 1 $aDINIZ NETO, H. DO C.
700 1 $aMALACCO, V. M. R.
700 1 $aRODRIGUES, J. P. P.
700 1 $aSACRAMENTO, J. P.
700 1 $aMACHADO, F. S.
700 1 $aPEREIRA, L. G. R.
700 1 $aTOMICH, T. R.
700 1 $aCAMPOS, M. M.
773 $tPlos One$gv. 14, n. 10, article e0223368, 2019.
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Registro original: |
Embrapa Gado de Leite (CNPGL) |
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Origem |
Tipo/Formato |
Classificação |
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Registro |
Volume |
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URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
01/06/1997 |
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Data da última atualização: |
20/10/2023 |
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Autoria: |
COUTO, W. S.; RIBEIRO, P. H. E.; ALVES, A. A. C. |
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Afiliação: |
WALMIR SALLES COUTO, CPATU; PEDRO HELIO ESTEVAM RIBEIRO, UEPAT-BOA VISTA; ALFREDO AUGUSTO CUNHA ALVES, UEPAT-BOA VISTA. |
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Título: |
Dosagens de fósforo para cultivares de milho em terra roxa estruturada de Roraima. |
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Ano de publicação: |
1982 |
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Fonte/Imprenta: |
Belém, PA: EMBRAPA-CPATU, 1982. |
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Páginas: |
2 p. |
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Série: |
(EMBRAPA-CPATU. Pesquisa em andamento, 68). |
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Idioma: |
Português |
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Conteúdo: |
Na Região Amazônica, face sua peculiaridade, se tem recomendado a utilização preferencial de solos férteis para produção de alimentos, principalmente para o cultivo do milho e feijão Phaseolus. Estas culturas, geralmente, necessitam de maiores quantidades de nutrientes no solo para um bom desenvolvimento das plantas e rendimento de grãos. |
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Palavras-Chave: |
Brasil; Dosagens; Maize; Phosphate fertilizers; Roraima. |
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Thesagro: |
Fertilidade do Solo; Fertilizante Fosfatado; Fósforo; Milho; Produtividade; Superfosfato; Variedade. |
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Thesaurus NAL: |
Amazonia; superphosphate; yields. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/60090/1/CPATU-PA68.pdf
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Marc: |
LEADER 01230nam a2200337 a 4500
001 1380614
005 2023-10-20
008 1982 bl uuuu u0uu1 u #d
100 1 $aCOUTO, W. S.
245 $aDosagens de fósforo para cultivares de milho em terra roxa estruturada de Roraima.
260 $aBelém, PA: EMBRAPA-CPATU$c1982
300 $a2 p.
490 $a(EMBRAPA-CPATU. Pesquisa em andamento, 68).
520 $aNa Região Amazônica, face sua peculiaridade, se tem recomendado a utilização preferencial de solos férteis para produção de alimentos, principalmente para o cultivo do milho e feijão Phaseolus. Estas culturas, geralmente, necessitam de maiores quantidades de nutrientes no solo para um bom desenvolvimento das plantas e rendimento de grãos.
650 $aAmazonia
650 $asuperphosphate
650 $ayields
650 $aFertilidade do Solo
650 $aFertilizante Fosfatado
650 $aFósforo
650 $aMilho
650 $aProdutividade
650 $aSuperfosfato
650 $aVariedade
653 $aBrasil
653 $aDosagens
653 $aMaize
653 $aPhosphate fertilizers
653 $aRoraima
700 1 $aRIBEIRO, P. H. E.
700 1 $aALVES, A. A. C.
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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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