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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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Biblioteca(s): |
Embrapa Agropecuária Oeste. |
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Data corrente: |
15/12/2016 |
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Data da última atualização: |
06/03/2017 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
PADOVAN, D. S. da S.; SOARES, J. A. B.; PADOVAN, P. S.; RIBEIRO, A. P.; PADOVAN, M. P. |
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Afiliação: |
DENISE SOARES DA SILVA PADOVAN, AGÊNCIA DE DESENVOLVIMENTO AGRÁRIO E EXTENSÃO RURAL, DOURADOS, MS; JAINE APARECIDA BALBINO SOARES, UNIVERSIDADE FEDERAL DA GRANDE DOURADOS, DOURADOS, MS; PABLO SOARES PADOVAN, UNIVERSIDADE FEDERAL DA GRANDE DOURADOS, DOURADOS, MS; ANTÔNIO PAULO RIBEIRO, ASSOCIAÇÃO DE PRODUTORES ORGÂNICOS DE MATO GROSSO DO SUL, DOURADOS, MS; MILTON PARRON PADOVAN, CPAO. |
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Título: |
Trajetória de um agricultor-multiplicador na agroecologia: uma experiência a ser seguida no âmbito da agricultura familiar. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
In: SEMINÁRIO INTERNACIONAL DE AGROECOLOGIA DA AMÉRICA DO SUL, 2.; JORNADA INTERNACIONAL DE EDUCAÇÃO DO CAMPO, 1.; SEMINÁRIO DE AGROECOLOGIA DE MATO GROSSO DO SUL, 6; ENCONTRO DE PRODUTORES AGROECOLÓGICOS DE MATO GROSSO DO SUL, 5.; SEMINÁRIO DE SISTEMAS AGROFLORESTAIS EM BASES AGROECOLÓGICAS DE MATO GROSSO DO SUL, 2., 2016, Dourados. Agroecologia e soberania alimentar: saberes em busca do bem viver: anais. Dourados: UFGD, 2016. Não paginado. Agroecol 2016. 1 CD-ROM. |
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Idioma: |
Português |
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Notas: |
Publicado também em: Cadernos de Agroecologia, v. 11, n. 2, 2016. |
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Palavras-Chave: |
Certificação; Produção agroecológica; Unidade referência. |
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Thesagro: |
Agricultura Familiar. |
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Categoria do assunto: |
A Sistemas de Cultivo |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/151919/1/trajetoria....pdf
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Marc: |
LEADER 01159nam a2200205 a 4500
001 2058795
005 2017-03-06
008 2016 bl uuuu u00u1 u #d
100 1 $aPADOVAN, D. S. da S.
245 $aTrajetória de um agricultor-multiplicador na agroecologia$buma experiência a ser seguida no âmbito da agricultura familiar.
260 $aIn: SEMINÁRIO INTERNACIONAL DE AGROECOLOGIA DA AMÉRICA DO SUL, 2.; JORNADA INTERNACIONAL DE EDUCAÇÃO DO CAMPO, 1.; SEMINÁRIO DE AGROECOLOGIA DE MATO GROSSO DO SUL, 6; ENCONTRO DE PRODUTORES AGROECOLÓGICOS DE MATO GROSSO DO SUL, 5.; SEMINÁRIO DE SISTEMAS AGROFLORESTAIS EM BASES AGROECOLÓGICAS DE MATO GROSSO DO SUL, 2., 2016, Dourados. Agroecologia e soberania alimentar: saberes em busca do bem viver: anais. Dourados: UFGD, 2016. Não paginado. Agroecol 2016. 1 CD-ROM.$c2016
500 $aPublicado também em: Cadernos de Agroecologia, v. 11, n. 2, 2016.
650 $aAgricultura Familiar
653 $aCertificação
653 $aProdução agroecológica
653 $aUnidade referência
700 1 $aSOARES, J. A. B.
700 1 $aPADOVAN, P. S.
700 1 $aRIBEIRO, A. P.
700 1 $aPADOVAN, M. P.
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Embrapa Agropecuária Oeste (CPAO) |
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