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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
26/09/2022 |
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Data da última atualização: |
26/09/2022 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
FERNANDES, L. O.; PASCHOAL, J. J.; MACIEL, G. A.; BRAGA, G. J.; REIS, N. J. C.; PAIVA, M. I. de. |
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Afiliação: |
LEONARDO OLIVEIRA FERNANDES; JULIANA JORGE PASCHOAL; GIOVANA ALCANTARA MACIEL, CPAC; GUSTAVO JOSE BRAGA, CPAC; NÍNIVE JHORS CARNEIRO REIS; MARCIA INGRID DE PAIVA. |
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Título: |
Feed efficiency of Nellore young bull in the feedlot. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
In: REUNIÃO DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 57., 2022, Campinas. Tropical animal science and pratice to feed the planet: proceedings. Brasília, DF: SBZ; São Carlos, SP: Embrapa Pecuária Sudeste, 2022. |
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Páginas: |
p. 128 |
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Idioma: |
Inglês |
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Conteúdo: |
The objective of the study was to evaluate feed efficiency of Nellore young bull in the feedlot using the evaluation of the residual feed intake (RFI). The experiment was carried out at the experimental farm Orestes Prata Tibery Júnior (ABCZ), located in Uberaba, MG, Brazil (lat. 19º 47' 68" S.; long. 47º 58' 50'' W, 788 m West). Nellore young bulls (n = 101), pure breed, with initial age of 17 months and mean live weight of 486 kg were housed in a feedlot containing electronic troughs and weighing scales. The experimental period lasted 98 days, with 28 of adaptation and 70 days of evaluation, from 03/17/2021 to 06/23/2021. The diet was formulated to provide 1.700 kg live weight/head/day and had a forage:concentrate ratio of 40:60, with 40% of corn silage and 60% of concentrate, containing 15.3% CP and 76.8% TDN on dry matter (DM) basis. The RFI was determined during the experimental period and the animals were separated in two experimental groups: positive and negative RFI. It was evaluated average daily gain (ADG), feed conversion (FC), daily dry matter intake (DMI) and gross feed efficiency (GFE). The experimental design was completely randomized and means were compared using Tukey test at 5% significance. In the evaluation of 101 young bulls, 56 had negative RFI and 45 had positive RFI, about 55.4% had lower DMI compared to estimated, which was considered the most efficient. The difference between the lowest and the highest individual intake followed was -1.87 kg (negative RFI) and 3.52 kg (positive RFI), with the difference of 5.39 kg of RFI, showing variability and chance of selection for more efficient and lower cost young bulls. It was observed effect of youn bull RFI group on DMI - 13.59 and 12.05 kg/day, and 2.51 and 2.24% LW, respectively for positive and negative RFI. There was a reduction of 11.3% in DMI during the experimental period. Feed conversion (6.28 and 6.93 kg of DM/kg ADG for negative and positive RFI) and GFE (0.16 and 0.15 kg ADG/kg DMI for negative and positive RFI) were influenced by RFI group. There was no effect (P>0.05) of RFI group on ADG - 1.95 (negative RFI) and 1.98 kg/head/day (positive RFI). Young bulls presenting negative RFI had lower intake with the same ADG, enabling better-feed conversion in the finishing phase, which directly affects the reduction of feed and production costs. MenosThe objective of the study was to evaluate feed efficiency of Nellore young bull in the feedlot using the evaluation of the residual feed intake (RFI). The experiment was carried out at the experimental farm Orestes Prata Tibery Júnior (ABCZ), located in Uberaba, MG, Brazil (lat. 19º 47' 68" S.; long. 47º 58' 50'' W, 788 m West). Nellore young bulls (n = 101), pure breed, with initial age of 17 months and mean live weight of 486 kg were housed in a feedlot containing electronic troughs and weighing scales. The experimental period lasted 98 days, with 28 of adaptation and 70 days of evaluation, from 03/17/2021 to 06/23/2021. The diet was formulated to provide 1.700 kg live weight/head/day and had a forage:concentrate ratio of 40:60, with 40% of corn silage and 60% of concentrate, containing 15.3% CP and 76.8% TDN on dry matter (DM) basis. The RFI was determined during the experimental period and the animals were separated in two experimental groups: positive and negative RFI. It was evaluated average daily gain (ADG), feed conversion (FC), daily dry matter intake (DMI) and gross feed efficiency (GFE). The experimental design was completely randomized and means were compared using Tukey test at 5% significance. In the evaluation of 101 young bulls, 56 had negative RFI and 45 had positive RFI, about 55.4% had lower DMI compared to estimated, which was considered the most efficient. The difference between the lowest and the highest individual intake followed was -1.87 kg (negati... Mostrar Tudo |
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Thesagro: |
Ganho de Peso. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1146825/1/Giovana-Maciel-Feed-efficiency-of-Nellore.pdf
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Marc: |
LEADER 03062nam a2200193 a 4500
001 2146825
005 2022-09-26
008 2022 bl uuuu u00u1 u #d
100 1 $aFERNANDES, L. O.
245 $aFeed efficiency of Nellore young bull in the feedlot.$h[electronic resource]
260 $aIn: REUNIÃO DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 57., 2022, Campinas. Tropical animal science and pratice to feed the planet: proceedings. Brasília, DF: SBZ; São Carlos, SP: Embrapa Pecuária Sudeste$c2022
300 $ap. 128
520 $aThe objective of the study was to evaluate feed efficiency of Nellore young bull in the feedlot using the evaluation of the residual feed intake (RFI). The experiment was carried out at the experimental farm Orestes Prata Tibery Júnior (ABCZ), located in Uberaba, MG, Brazil (lat. 19º 47' 68" S.; long. 47º 58' 50'' W, 788 m West). Nellore young bulls (n = 101), pure breed, with initial age of 17 months and mean live weight of 486 kg were housed in a feedlot containing electronic troughs and weighing scales. The experimental period lasted 98 days, with 28 of adaptation and 70 days of evaluation, from 03/17/2021 to 06/23/2021. The diet was formulated to provide 1.700 kg live weight/head/day and had a forage:concentrate ratio of 40:60, with 40% of corn silage and 60% of concentrate, containing 15.3% CP and 76.8% TDN on dry matter (DM) basis. The RFI was determined during the experimental period and the animals were separated in two experimental groups: positive and negative RFI. It was evaluated average daily gain (ADG), feed conversion (FC), daily dry matter intake (DMI) and gross feed efficiency (GFE). The experimental design was completely randomized and means were compared using Tukey test at 5% significance. In the evaluation of 101 young bulls, 56 had negative RFI and 45 had positive RFI, about 55.4% had lower DMI compared to estimated, which was considered the most efficient. The difference between the lowest and the highest individual intake followed was -1.87 kg (negative RFI) and 3.52 kg (positive RFI), with the difference of 5.39 kg of RFI, showing variability and chance of selection for more efficient and lower cost young bulls. It was observed effect of youn bull RFI group on DMI - 13.59 and 12.05 kg/day, and 2.51 and 2.24% LW, respectively for positive and negative RFI. There was a reduction of 11.3% in DMI during the experimental period. Feed conversion (6.28 and 6.93 kg of DM/kg ADG for negative and positive RFI) and GFE (0.16 and 0.15 kg ADG/kg DMI for negative and positive RFI) were influenced by RFI group. There was no effect (P>0.05) of RFI group on ADG - 1.95 (negative RFI) and 1.98 kg/head/day (positive RFI). Young bulls presenting negative RFI had lower intake with the same ADG, enabling better-feed conversion in the finishing phase, which directly affects the reduction of feed and production costs.
650 $aGanho de Peso
700 1 $aPASCHOAL, J. J.
700 1 $aMACIEL, G. A.
700 1 $aBRAGA, G. J.
700 1 $aREIS, N. J. C.
700 1 $aPAIVA, M. I. de
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Registro original: |
Embrapa Cerrados (CPAC) |
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| Registros recuperados : 64 | |
| 8. |  | BRAGA, G. J.; PEDREIRA, C. G. S.; HERLING, V. R.; LUZ, P. H. de C. Eficiência de pastejo de capim-marandu submetido a diferentes ofertas de forragem Pesquisa Agropecuária Brasileira, Brasília, DF, v. 42, n. 11, p. 1641-1649, nov. 2007 Título em inglês: Grazing efficiency on marandu palisadegrass as affected by herbage allowance.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 9. | | BRAGA, G. J.; MELLO, A. C. L. de; PEDREIRA, C. G. S.; MEDEIROS, H. R. de. Fotossíntese e taxa diária de produção de forragem em pastagens de capim-tanzânia sob lotação intermitente. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 44, n. 1, p. 84-91, jan. 2009. Título em inglês: Photosynthesis and daily forage productivity of Tanzania guinea grass pastures under rotational stocking.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 11. | | BRAGA, G. J.; RAMOS, A. K. B.; CARVALHO, M. A.; MACIEL, G. A.; FERNANDES, F. D. Performance of beef cattle in a cultivated legume-grass pasture in the Brazilian Cerrado. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 55.; CONGRESSO BRASILEIRO DE ZOOTECNIA, 28., 2018, Goiânia. Construindo saberes, formando pessoas e transformando a produção animal: anais eletrônicos. Goiânia: Sociedade Brasileira de Zootecnia, 2018.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Cerrados. |
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| 13. | | PAIVA, R.; REIS, N. J. C.; PAIVA, M. I. de; FERNANDES, L. de O.; MACIEL, G. A.; BRAGA, G. J. Evaluation of the effect of weight at weaning on the subsequent growth of pure Nellore calves under grazing. In: REUNIÃO DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 57., 2022, Campinas. Tropical animal science and pratice to feed the planet: proceedings. Brasília, DF: SBZ; São Carlos, SP: Embrapa Pecuária Sudeste, 2022. p. 124| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Cerrados. |
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| 14. | | FERNANDES, F. D.; CARVALHO, M. A.; MACIEL, G. A.; ASSIS, G. M. L. de; BRAGA, G. J. Forage yield and nutritive value of Arachis spp. genotypes in the Brazilian savanna. Tropical Grasslands - Forrajes Tropicalles, Cali, v. 5, n. 1, p. 19-28, Jan. 2017. p. 19-28.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 3 |
| Biblioteca(s): Embrapa Acre; Embrapa Cerrados. |
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| 15. | | FERNANDES, F. D.; RAMOS, A. K. B.; JANK, L.; CARVALHO, M. A.; MARTHA JUNIOR, G. B.; BRAGA, G. J. Forage yield and nutritive value of Panicum maximum genotypes in the Brazilian savannah. Scientia Agricola, v.71, n.1, p.23-29, Jan./Fev., 2014| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Gado de Corte. |
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| 16. | | FERNANDES, F. D.; RAMOS, A. K. B.; JANK, L.; CARVALHO, M. A.; MARTHA JUNIOR, G. B.; BRAGA, G. J. Forage yield and nutritive value of Panicum maximum genotypes in the Brazilian savannah. Scientia Agricola, v. 71, n. 1, p. 23-29, 2014.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Cerrados. |
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| 17. | | KARIA, C. T.; ANDRADE, R. P. de; FERNANDES, C. D.; SCHUNKE, R. M.; CARVALHO, M. A.; BRAGA, G. J. Gênero Stylosanthes. In: FONSECA, D. M. da; MARTUSCELLO, J. A. (ed.). Plantas forrageiras. 2. ed. rev. ampl. Viçosa, MG: Editora UFV, 2021. Cap. 12.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Cerrados. |
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| 18. | | KARIA, C. T.; ANDRADE, R. P. de; FERNANDES, C. D.; SCHUNKE, R. M.; CARVALHO, M. A.; BRAGA, G. J. Gênero Stylosanthes. In: FONSECA, D. M. da; MARTUSCELLO, J. A. (ed.). Plantas forrageiras. 2. ed. rev. ampl. Viçosa, MG: Editora UFV, 2022. Cap. 12.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Unidades Centrais. |
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| 19. | | BRAGA, G. J.; MACIEL, G. A.; RAMOS, A. K. B.; CARVALHO, M. A.; FERNANDES, F. D.; TAVARES JUNIOR, JURACY. Densidade populacional e peso médio de perfilhos de Panicum spp. em resposta a doses de fósforo e calcário na fase de estabelecimento. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 49., 2012, Brasília. A produção animal no mundo em transformação: anais. Brasília, DF: SBZ, 2012. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Cerrados. |
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| Registros recuperados : 64 | |
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