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Registro Completo |
Biblioteca(s): |
Embrapa Pecuária Sudeste. |
Data corrente: |
01/11/2011 |
Data da última atualização: |
01/11/2011 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
SILVA, P. V. C. da; LUI, J. F.; CAVALCANTE NETO, A.; REGITANO, L. C. de A.; GROSSI, S. de F.; ALVES, D. N. M. |
Afiliação: |
PAULA VIANA CORREA DA SILVA; JEFFREY FREDERICO LUI, UNESP/JABOTICABAL; ADERBAL CAVALCANTE NETO,; LUCIANA CORREIA DE ALMEIDA REGITANO, CPPSE; SELMA DE FÁTIMA GROSSI; DAVI NOGUEIRA MACIEL ALVES. |
Título: |
caracterização genética de javalis (Sus scrofa scrofa), híbridos e suínos por meio de marcadores microssatélites (strs) |
Ano de publicação: |
2011 |
Fonte/Imprenta: |
Archivos Latinoamericano de Producion Animal, v. 19, (supl. 1), p. 182, 2011 |
Idioma: |
Português |
Palavras-Chave: |
Caracterização genética; Javalis; Marcadores microssatélites; Microssatélites. |
Thesagro: |
Suíno. |
Categoria do assunto: |
G Melhoramento Genético |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/45093/1/PROCI2011.00126.pdf
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Marc: |
LEADER 00731nam a2200217 a 4500 001 1904562 005 2011-11-01 008 2011 bl uuuu u00u1 u #d 100 1 $aSILVA, P. V. C. da 245 $acaracterização genética de javalis (Sus scrofa scrofa), híbridos e suínos por meio de marcadores microssatélites (strs) 260 $aArchivos Latinoamericano de Producion Animal, v. 19, (supl. 1), p. 182, 2011$c2011 650 $aSuíno 653 $aCaracterização genética 653 $aJavalis 653 $aMarcadores microssatélites 653 $aMicrossatélites 700 1 $aLUI, J. F. 700 1 $aCAVALCANTE NETO, A. 700 1 $aREGITANO, L. C. de A. 700 1 $aGROSSI, S. de F. 700 1 $aALVES, D. N. M.
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Embrapa Pecuária Sudeste (CPPSE) |
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Registro Completo
Biblioteca(s): |
Embrapa Cerrados. |
Data corrente: |
26/09/2022 |
Data da última atualização: |
26/09/2022 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
FERNANDES, L. O.; PASCHOAL, J. J.; MACIEL, G. A.; BRAGA, G. J.; REIS, N. J. C.; PAIVA, M. I. de. |
Afiliação: |
LEONARDO OLIVEIRA FERNANDES; JULIANA JORGE PASCHOAL; GIOVANA ALCANTARA MACIEL, CPAC; GUSTAVO JOSE BRAGA, CPAC; NÍNIVE JHORS CARNEIRO REIS; MARCIA INGRID DE PAIVA. |
Título: |
Feed efficiency of dairy Gir heifers in the feedlot. |
Ano de publicação: |
2022 |
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. |
Páginas: |
p. 127 |
Idioma: |
Inglês |
Conteúdo: |
The objective of the study was to evaluate the feed efficiency of Gir heifers in the feedlot through the residual feed intake (RFI) evaluation. The experiment was carried out on the campus of Faculdades Associadas in Uberaba, MG, Brazil. It was evaluated 43 dairy Gir heifers from the Genetic Breeding Program of EPAMIG, with initial age and mean live weight of 20 months and 279 kg, respectively (Ethics Committee approval of Epamig: 02/2020). Heifers were housed in a feedlot containing electronic troughs and weighing scales. The experimental period lasted 91 days with 21 of adaptation and 70 days of evaluation, from 12/26/2020 to 03/27/2021. The diet was formulated to provide 0.450 kg LW/head/day and had a forage:concentrate ratio of 74:26, with 76.4% of corn silage and 23.6% of concentrate, containing 8.3% of crude protein (CP) and 64.8% of total digestible nutrients (TDN) on dry matter (DM) basis. The RFI was determined and then two experimental heifer groups were formed, a positive RFI and a negative RFI. They were compared in terms of 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% of significance. In the evaluation of heifers, 24 had negative RFI and 19 positive RFI. About 56% of the heifers had lower DMI compared to estimated, of which considered more efficient. There was a difference (P<0.05) between the lowest and highest individual intake followed by -1.215 kg (RFI negative) and 1.936 kg (RFI positive), a difference of 3.15 kg of RFI. These results showed variability and chance of selection for more efficient and lower cost individuals. There was effect (P<0.05) of heifer RFI group on DMI - 6.29 and 5.43 kg/day, and 2.14 and 1.81% LW, for positive RFI and negative RFI, respectively. A DMI reduction of 13.67% was observed in the experimental period. There was no difference (P>0.05) for ADG (0.45 and 0.44 kg LW/head/day), FC (15.4 and 13.2 kg DM/kg ADG), GFE (0.07 and 0.08 kg ADG/kg DMI), respectively for negative and positive RFI. Consequently, negative RFI heifers consume less with the same live weight gain, allowing better-feed conversion in the rearing phase, reducing feed quantity and costs of milk production. This fact is proven trough the reduction of necessary inputs for feeding during the rearing, impacting in reducing the cost of the production system and indirectly the cost of milk production. MenosThe objective of the study was to evaluate the feed efficiency of Gir heifers in the feedlot through the residual feed intake (RFI) evaluation. The experiment was carried out on the campus of Faculdades Associadas in Uberaba, MG, Brazil. It was evaluated 43 dairy Gir heifers from the Genetic Breeding Program of EPAMIG, with initial age and mean live weight of 20 months and 279 kg, respectively (Ethics Committee approval of Epamig: 02/2020). Heifers were housed in a feedlot containing electronic troughs and weighing scales. The experimental period lasted 91 days with 21 of adaptation and 70 days of evaluation, from 12/26/2020 to 03/27/2021. The diet was formulated to provide 0.450 kg LW/head/day and had a forage:concentrate ratio of 74:26, with 76.4% of corn silage and 23.6% of concentrate, containing 8.3% of crude protein (CP) and 64.8% of total digestible nutrients (TDN) on dry matter (DM) basis. The RFI was determined and then two experimental heifer groups were formed, a positive RFI and a negative RFI. They were compared in terms of 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% of significance. In the evaluation of heifers, 24 had negative RFI and 19 positive RFI. About 56% of the heifers had lower DMI compared to estimated, of which considered more efficient. There was a difference (P<0.05) between the lowest ... Mostrar Tudo |
Thesagro: |
Ganho de Peso. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1146833/1/Giovana-Maciel-Feed-efficiency.pdf
|
Marc: |
LEADER 03214nam a2200193 a 4500 001 2146833 005 2022-09-26 008 2022 bl uuuu u00u1 u #d 100 1 $aFERNANDES, L. O. 245 $aFeed efficiency of dairy Gir heifers in the feedlot.$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. 127 520 $aThe objective of the study was to evaluate the feed efficiency of Gir heifers in the feedlot through the residual feed intake (RFI) evaluation. The experiment was carried out on the campus of Faculdades Associadas in Uberaba, MG, Brazil. It was evaluated 43 dairy Gir heifers from the Genetic Breeding Program of EPAMIG, with initial age and mean live weight of 20 months and 279 kg, respectively (Ethics Committee approval of Epamig: 02/2020). Heifers were housed in a feedlot containing electronic troughs and weighing scales. The experimental period lasted 91 days with 21 of adaptation and 70 days of evaluation, from 12/26/2020 to 03/27/2021. The diet was formulated to provide 0.450 kg LW/head/day and had a forage:concentrate ratio of 74:26, with 76.4% of corn silage and 23.6% of concentrate, containing 8.3% of crude protein (CP) and 64.8% of total digestible nutrients (TDN) on dry matter (DM) basis. The RFI was determined and then two experimental heifer groups were formed, a positive RFI and a negative RFI. They were compared in terms of 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% of significance. In the evaluation of heifers, 24 had negative RFI and 19 positive RFI. About 56% of the heifers had lower DMI compared to estimated, of which considered more efficient. There was a difference (P<0.05) between the lowest and highest individual intake followed by -1.215 kg (RFI negative) and 1.936 kg (RFI positive), a difference of 3.15 kg of RFI. These results showed variability and chance of selection for more efficient and lower cost individuals. There was effect (P<0.05) of heifer RFI group on DMI - 6.29 and 5.43 kg/day, and 2.14 and 1.81% LW, for positive RFI and negative RFI, respectively. A DMI reduction of 13.67% was observed in the experimental period. There was no difference (P>0.05) for ADG (0.45 and 0.44 kg LW/head/day), FC (15.4 and 13.2 kg DM/kg ADG), GFE (0.07 and 0.08 kg ADG/kg DMI), respectively for negative and positive RFI. Consequently, negative RFI heifers consume less with the same live weight gain, allowing better-feed conversion in the rearing phase, reducing feed quantity and costs of milk production. This fact is proven trough the reduction of necessary inputs for feeding during the rearing, impacting in reducing the cost of the production system and indirectly the cost of milk production. 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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