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![](/consulta/web/img/deny.png) | Acesso ao texto completo restrito à biblioteca da Embrapa Pantanal. Para informações adicionais entre em contato com cpap.biblioteca@embrapa.br. |
Registro Completo |
Biblioteca(s): |
Embrapa Pantanal. |
Data corrente: |
22/01/2015 |
Data da última atualização: |
24/03/2016 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
BAILEY, J. C.; TEDESCHI, L. O.; MENDES, E. D. M.; SAWYER, J. E.; CARSTENS, G. E. |
Afiliação: |
J. C. BAILEY, Department of Animal Science, Texas A&M University, College Station; L.O.TEDESCHI, Department of Animal Science, Texas A&M University, College Station; EGLEU DIOMEDES MARINHO MENDES, CPAP; J. E. SAWYER, Department of Animal Science, Texas A&M University, College Station; G. E. CARSTENS, Department of Animal Science, Texas A&M University, College Station. |
Título: |
Technical note: evaluation of bimodal distribution models to determine meal criterion in heifers fed a high-grain diet. |
Ano de publicação: |
2012 |
Fonte/Imprenta: |
Journal of Animal Science, v. 90, n. 8, p. 2750-2753, aug. 2012. |
DOI: |
10.2527/jas2011-4634 |
Idioma: |
Inglês |
Conteúdo: |
Meals are clusters of feedbunk visit (BV) events that are differentiated from the next meal by a nonfeeding interval that is longer compared with the nonfeeding intervals within a meal. The longest nonfeeding interval considered to be part of a meal is defi ned as the meal criterion. The objective of this study was to determine which combination of 2 probability density functions [(PDF): Gaussian normal (G), Weibull (W), Log-Normal, Gamma, and Gumbel] used in a bimodal distribution model had the best fit of nonfeeding interval data collected in beef heifers. Feeding behavior traits (572,627 total BV events) were measured in 119 heifers fed a high-grain diet (3.08 Mcal ME/kg DM), using a GrowSafe system for 66 d. The frequency and duration of BV events averaged 75 ± 15 events/d and 73.0 ± 22.3 min/d, respectively. The bimodal PDF combinations were fi tted to the log10-transformed interval lengths between BV events for each animal, using R mixdist package (2.13). The Akaike Information Criterion (AIC) was used to assess goodness of fi t of the 25 bimodal PDF combinations. The PDF model with the least AIC value was selected as the best fi t for each individual. A x2 analysis of the selected best PDF distribution across individuals revealed that 78.2% of the heifers best fi t were G-W or W-W PDF models. The likelihood probability estimates were calculated from the average AIC deviation of each model from the standard G-G model. The G-W likelihood probability estimate was greater (P = 0.001) than the W-W combination (0.997 vs. 0.727). Our analysis indicated the G-W model had a statistically better fi t and is most likely the best approach to defi ne meal criterion in beef heifers fed high-grain diets. MenosMeals are clusters of feedbunk visit (BV) events that are differentiated from the next meal by a nonfeeding interval that is longer compared with the nonfeeding intervals within a meal. The longest nonfeeding interval considered to be part of a meal is defi ned as the meal criterion. The objective of this study was to determine which combination of 2 probability density functions [(PDF): Gaussian normal (G), Weibull (W), Log-Normal, Gamma, and Gumbel] used in a bimodal distribution model had the best fit of nonfeeding interval data collected in beef heifers. Feeding behavior traits (572,627 total BV events) were measured in 119 heifers fed a high-grain diet (3.08 Mcal ME/kg DM), using a GrowSafe system for 66 d. The frequency and duration of BV events averaged 75 ± 15 events/d and 73.0 ± 22.3 min/d, respectively. The bimodal PDF combinations were fi tted to the log10-transformed interval lengths between BV events for each animal, using R mixdist package (2.13). The Akaike Information Criterion (AIC) was used to assess goodness of fi t of the 25 bimodal PDF combinations. The PDF model with the least AIC value was selected as the best fi t for each individual. A x2 analysis of the selected best PDF distribution across individuals revealed that 78.2% of the heifers best fi t were G-W or W-W PDF models. The likelihood probability estimates were calculated from the average AIC deviation of each model from the standard G-G model. The G-W likelihood probability estimate was greater... Mostrar Tudo |
Palavras-Chave: |
Meal criterion. |
Thesagro: |
Bovino; Gado; Nutrição animal. |
Thesaurus Nal: |
beef cattle; feeding behavior. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02473naa a2200253 a 4500 001 2006379 005 2016-03-24 008 2012 bl uuuu u00u1 u #d 024 7 $a10.2527/jas2011-4634$2DOI 100 1 $aBAILEY, J. C. 245 $aTechnical note$bevaluation of bimodal distribution models to determine meal criterion in heifers fed a high-grain diet. 260 $c2012 520 $aMeals are clusters of feedbunk visit (BV) events that are differentiated from the next meal by a nonfeeding interval that is longer compared with the nonfeeding intervals within a meal. The longest nonfeeding interval considered to be part of a meal is defi ned as the meal criterion. The objective of this study was to determine which combination of 2 probability density functions [(PDF): Gaussian normal (G), Weibull (W), Log-Normal, Gamma, and Gumbel] used in a bimodal distribution model had the best fit of nonfeeding interval data collected in beef heifers. Feeding behavior traits (572,627 total BV events) were measured in 119 heifers fed a high-grain diet (3.08 Mcal ME/kg DM), using a GrowSafe system for 66 d. The frequency and duration of BV events averaged 75 ± 15 events/d and 73.0 ± 22.3 min/d, respectively. The bimodal PDF combinations were fi tted to the log10-transformed interval lengths between BV events for each animal, using R mixdist package (2.13). The Akaike Information Criterion (AIC) was used to assess goodness of fi t of the 25 bimodal PDF combinations. The PDF model with the least AIC value was selected as the best fi t for each individual. A x2 analysis of the selected best PDF distribution across individuals revealed that 78.2% of the heifers best fi t were G-W or W-W PDF models. The likelihood probability estimates were calculated from the average AIC deviation of each model from the standard G-G model. The G-W likelihood probability estimate was greater (P = 0.001) than the W-W combination (0.997 vs. 0.727). Our analysis indicated the G-W model had a statistically better fi t and is most likely the best approach to defi ne meal criterion in beef heifers fed high-grain diets. 650 $abeef cattle 650 $afeeding behavior 650 $aBovino 650 $aGado 650 $aNutrição animal 653 $aMeal criterion 700 1 $aTEDESCHI, L. O. 700 1 $aMENDES, E. D. M. 700 1 $aSAWYER, J. E. 700 1 $aCARSTENS, G. E. 773 $tJournal of Animal Science$gv. 90, n. 8, p. 2750-2753, aug. 2012.
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3. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | ROTTA, E.; MENDES, E. M. B. Fenologia da floração e frutificação da bracatinga. Silvicultura, São Paulo, v. 12, n. 42, t. 3, p. 547-554, 1992. Edição dos Anais do Congresso Florestal Brasileiro, 6., 1990, Campos do Jordão.Biblioteca(s): Embrapa Florestas. |
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6. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | BONFIM, K.; FARIA, J. C.; MENDES, E.; LIMA, N. I.; ARAGÃO, F. J. L. Alta resistência ao Bean golden mosaic virus mediada por RNA interferente em plantas transgênicas de feijão (Phaseolus vulgaris). In: ENCONTRO DO TALENTO ESTUDANTIL DA EMBRAPA RECURSOS GENÉTICOS E BIOTECNOLOGIA, 11., 2006, Brasília, DF. Anais: resumos dos trabalhos. Brasília, DF: Embrapa Recursos Genéticos e Biotecnologia, 2006. p. 56.Tipo: Resumo em Anais de Congresso | Circulação/Nível: -- - -- |
Biblioteca(s): Embrapa Arroz e Feijão; Embrapa Recursos Genéticos e Biotecnologia. |
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7. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | PEREIRA, A. M. L.; MENDES, E. S.; SANTOS, F. L.; SANTOS, M. L. Análises de amostras coletadas em cultivos de Lítopenaeus vannamei dos estados do Piauí e Ceará em Junho/2003. In: ENCONTRO BRASILEIRO DE PATOLOGISTAS DE ORGANISMOS AQUÁTICOS, 8., 2004, Laguna, SC. Resumos. Laguna, SC: ABRAPOA, 2004. p. 131. PM 019. ENBRAPOA.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Meio-Norte. |
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11. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | BONFIM, K.; FARIA, J. C.; MENDES, E.; LIMA, N. I.; ARAGÃO, F. J. L. Resistência ao bean golden mosaic virus mediada por RNA interferente em plantas transgênicas de feijoeiro. In: CONGRESSO BRASILEIRO DE GENÉTICA, 52., 2006, Foz do Iguaçu, PR. Resumos... Ribeirão Preto, SP: Sociedade Brasileira de Genética, 2006. p. 1069.Tipo: Resumo em Anais de Congresso | Circulação/Nível: -- - -- |
Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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12. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | REATTO, A.; BROSSARD, M.; MARTINS, E. S.; CARVALHO, A. M. de; MENDES, E. de C. Transformacoes morfologicas e fisicas de um latossolo vermelho amarelo argiloso gibbsitico em sisltemas de cultivo intensivos. In: CONGRESSO BRASILEIRO DE CIENCIA DO SOLO, 28., 2001, Londrina, PR. Ciencia do solo: fator de produtividade competitiva com sustentabilidade. Londrina: SBCS, 2001. p. 5. Resumo.Biblioteca(s): Embrapa Cerrados. |
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15. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | MACEDO, E. G.; MENDES, E. P. C. B.; ROCHA NETO, O. G. da; SANTOS FILHO, B. G. dos. Aspectos preliminares anato-morfologicos de Quassia amara L. submetida a três condições de luminosidade. In: CONGRESSO BRASILEIRO DE FISIOLOGIA VEGETAL, 6., 1997, Belém, PA. Resumos. Belém, PA: SBFV, 1997. p. 270.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Amazônia Oriental. |
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16. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | ALMEIDA, L. F.; SILVA, W. T. L. da; KUROKI, V.; NOVAES, A. P.; MENDES, E. B. T.; JOANITTI, J. Avaliação por FTIR da matéria orgânica presente em efluente tratado em biodigestor anaeróbio visando sua aplicação como fertilizante na agricultura. In: JORNADA DE INICIAÇÃO CIENTÍFICA E TECNOLÓGICA; CONGRESSO DE INICIAÇÃO CIENTÍFICA, 16.; CONGRESSO DE INICIAÇÃO EM DESENVOLVIMENTO TECNOLÓGICO E INOVAÇÃO, 1., 2008, São Carlos, SP. Anais de Eventos da UFSCar... São Carlos: UFSCar, 2008. v. 4 p. 987. Resumo.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Instrumentação. |
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17. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | ALMADA, D. A.; MENDES, E. K. de A.; SOUSA, G. da S.; SOUZA, H. J. R.; XAVIER JUNIOR, S. R. Diversidade de Bauhinia L. (Leguminosae-Caesalpinioideae) na paisagem urbana de Belém-Pará-Brasil. In: SIMPÓSIO DE ESTUDOS E PESQUISAS EM CIÊNCIAS AMBIENTAIS NA AMAZÔNIA, 5., 2016, Belém, PA. Anais: resumos aprovados - 2016. Belém, PA: UEPA, 2016. p. 61.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Amazônia Oriental. |
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18. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | BERNDT, A.; SAKAMOTO, L. S.; FERRARI, F. B.; BORBA, H.; MENDES, E. D. M.; TULLIO, R. R. Enteric methane emissions from beef cattle of different genetic groups in confinement in Brazil. In: ANNUAL MEETING OF THE EUROPEAN FEDERATION OF ANIMAL SCIENCE, 66., 2015, Warsaw. Abstracts... Warsow: Wageningen Academic, 2015. p. 135Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Pecuária Sudeste. |
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19. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | BONFIM, K.; FARIA, J. C.; NOGUEIRA, E. O. P. L.; MENDES, E. A.; ARAGÃO, F. J. L. Plantas transgênicas de feijão obtidas através da estratégia de RNA interferente foram altamente resistentes ao Bean Golden Mosaic Virus. Summa Phytopathologica, v. 33, p. S.83, fev. 2007. Suplemento. Ref. 290. Edição dos Resumos do XXX Congresso Paulista de Fitopatologia, Jaboticabal, fev. 2007.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Arroz e Feijão; Embrapa Recursos Genéticos e Biotecnologia. |
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20. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | FARIA, J. C.; BONFIM, K.; NOGUEIRA, E. O. P. L.; MENDES, E. A.; ARAGÃO, F. J. L. Resistance to bean golden mosaic virus in genetically engineered common bean mediated by RNAi. In: ANNIVERSARY OF THE BEAN IMPROVEMENT COOPERATIVE, 50.; BIENNIAL, 19., 2007, Madison, Wisconsin. Program and abstracts. [S. l.]: Bean Improvement Cooperative, 2007. p. 15.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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Registros recuperados : 52 | |
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Nenhum registro encontrado para a expressão de busca informada. |
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