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Registros recuperados: 6
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A comparison between three different approaches to omplement a system dynamic model: an assessment by a multidisciplinary team. Infoteca-e
FREUA, M. C.; BARIONI, L. G.; VILAMIU, R. G. d'A.; DIAS, F. R. T..
In the last few decades, application of system dynamics models (SDM) has disseminated through the agricultural sciences. Modeling groups are now much more multidisciplinary once the models currently developed are applied to larger frameworks. The literature has been inconclusive with regard to empirical evidence of the trade-offs between different paradigms to implement SDMs. In order to gain insight on the advantages and disadvantages between the paradigms we simulated a working group environment with seven researchers coming from various educational backgrounds where they had to implement a process-based SDM and fill in a questionnaire scoring characteristics of the paradigms and implementation process. The participants were divided into three groups...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) Palavras-chave: Modelos agrícolas; Modelo dinâmico; Modelo matemático; Programação orientada a objetos; Agricultural models; Dynamic models; Objected-oriented programming; Mathematical models.
Ano: 2014 URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/1008307
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BeefTrader (part II): optimal economical endpoint identification using nonparametric bootstrapping technique decreases greenhouse gases emission and other pollutants in feedlots. Repositório Alice
BIASE, A. G.; ALBERTINI, T. Z.; BARBOSA, M.; FERNANDES, P. A. P.; CASTANHEIRA, M. A.; CERQUEIRA, A. G.; GONÇALVES, H. C.; LANNA, D. P.; NEPOMUCENO, N. H. C.; BARIONI, L. G.; MEDEIROS, S. R. de; TORRES JUNIOR, R. A. de A.; FREUA, M. C.; OLTJEN, J. W..
The current study is the second from three sequential abstracts based on BeefTrader DSS to maximize profitability of farmers and the meat industry.
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Sistema de suporte à decisão; Gases do efeito estufa; Simulation; Gado de corte; Simulação; Beef cattle; Decision support systems; Greenhouse gas emissions; Feedlots.
Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1057582
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BeefTrader (part III): meat industry opportunity to improve its profitability reducing greenhouse gases emission and pollutants based on optimal economical endpoint identification. Repositório Alice
ALBERTINI, T. Z.; BIASE, A. G.; BARBOSA, M.; FERNANDES, P. A. P.; CASTANHEIRA, M. A.; COUTINHO, M. A. da S.; CERQUEIRA, A. G.; GONÇALVES, H. C.; LANNA, D. P.; NEPOMUCENO, N. H. C.; BARIONI, L. G.; MEDEIROS, S. R. de; TORRES JUNIOR, R. A. de A.; FREUA, M. C.; OLTJEN, J. W..
The aim of this study was evaluate the economic and environmental benefits to meat packers based on OEE individual identification.
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Emissão de gases do efeito estufa; Simulation; Sistema de suporte à decisão; Gado de corte; Simulação; Beef cattle; Greenhouse gas emissions; Feedlots; Decision support systems.
Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1057593
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Copy number variations and genome-wide associations reveal putative genes and metabolic pathways involved with the feed conversion ratio in beef cattle. Repositório Alice
SANTANA, M. H. de A.; OLIVEIRA JUNIOR, G. A.; CESAR, A. S. M.; FREUA, M. C.; GOMES, R. da C.; SILVA, S. da L.; LEME, P. R.; FUKUMASU, H.; CARVALHO, M. E.; VENTURA, R. V.; COUTINHO, L. L.; KADARMIDEEN, H. N.; FERRAZ, J. B. S..
The use of genome-wide association results combined with other genomic approaches may uncover genes and metabolic pathways related to complex traits. In this study, the phenotypic and genotypic data of 1475 Nellore (Bos indicus) cattle and 941,033 single nucleotide polymorphisms (SNPs) were used for genome-wide association study (GWAS) and copy number variations (CNVs) analysis in order to identify candidate genes and putative pathways involved with the feed conversion ratio (FCR). The GWAS was based on the Bayes B approach analyzing genomic windows with multiple regression models to estimate the proportion of genetic variance explained by each window. The CNVs were detected with PennCNV software using the log R ratio and B allele frequency data. CNV...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Nellore cattle; GWAS; Cattle; Feed conversion; Genomics; Cucumber necrosis virus; Single nucleotide polymorphism.
Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1066092
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Modeling enteric methane emission from beef cattle in Brazil: a proposed equation performed by principal component analysis and mixed modeling multiple regression. Repositório Alice
MEDEIROS, S. R. de; BARIONI, L. G.; BERNDT, A.; FREUA, M. C.; ALBERTINI, T. Z.; COSTA JUNIOR, C.; FELTRIN, G. B..
Brazil has the largest commercial beef cattle herd in the world but does not have its own model to predict methane (CH4 ) emission. The aim of this study was to create the first empirical enteric CH4 emission equation from variables that describe the animal diet using a meta-analytical data from Brazilian scientific publications (n = 50, published from 2003 to 2012).
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Emissão de metano; Methane.
Ano: 2014 URL: http://www.alice.cnptia.embrapa.br/handle/doc/988851
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The effect of concentrate supplementation on methane emission intensity of cattle grazing tropical pastures in the dry season. Repositório Alice
MEDEIROS, S. R. de; ALBERTINI, T. Z.; BARIONI, L. G.; BERNDT, A.; GOMES, R. D. C.; MARINO, C. T.; ANDRADE, C. V.; FREUA, M. C..
he reported effect is due to a combination of increased gain, as forage is used more efficiently, and the improvement in diet digestibility due to a direct (higher digestibility) and indirect effect (improved rumen ermentation) caused by concentrate supplementation. It can be concluded that supplementation is an effective strategy to reduce GHG emission intensity in tropical areas with a well-defined and long lasting dry season as it occurs in Brazil.
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Pastagem; Pastagem tropical; Grazing; Pastures; Rumen fermentation.
Ano: 2014 URL: http://www.alice.cnptia.embrapa.br/handle/doc/988767
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