Mariana de Aragão Pereira

Brazilian Agricultural Research Corporation (EMBRAPA) | Embrapa · Embrapa Beef Cattle

Brazil is the second largest beef producer and a leading exporter, contributing to some 3000 t CWE in global markets (27.7% of market share). The sector has experienced substantial development, but yields remain far below potential, and there are growing concerns regarding land use change and greenhouse gas emissions. The need for sustainable techn...

Brazil became a major player in the global beef market, after the market liberalization in the 1990’s, and experiencing a substantial development. Nonetheless, the environmental impact of beef production associated with land use and greenhouse gas emissions has been under discussion. The necessity of increased adoption of sustainable technologies,...

A marca-conceito Carne Baixo Carbono (CBC) busca valorizar sistemas pecuários que apresentam potencial de mitigação das emissões de gases de efeito estufa (GEEs). Em Unidade de Referência tecnológica, no bioma Cerrado, buscou-se avaliar a produção de bovinos de corte validando as diretrizes técnicas CBC. Assim, avaliou-se: densidade; estoque de car...

Silvopastoral systems, also known in Brazil as Integrated Livestock-Forestry Systems (ILFS), are a promising alternative for marginal agricultural areas in Mato Grosso do Sul state. This paper analysed the economic viability of a representative ILFS in the state Central-East region and, using Ambitec-Agro model, assessed the associated socio-enviro...

Abstract Nitrogen fertilization has been recognized as an essential tool towards the establishment of sustainable intensification of pasture-based livestock systems using tropical perennial grasses if, for a given ecosystem it is capable of increasing forage growth, stocking rates and animal performance. This study assessed pasture growth traits, n...

The integrated crop-livestock systems (ICL) are alternatives to reduce GHG emissions, while increasing beef and crops production. In particular, the economic viability of new Low Carbon Brazilian Beef (LCBB) protocol remains to be proved for farmers to adopt it. The aim of this study was to analyze the economic viability of the LCBB protocol from a...

Technological innovation is a precursor for sustainable development of the Brazilian agriculture and the adoption of technologies is a crucial condition for this process. Based on this premise, the first “International Symposium on Agricultural Technology Adoption (ISATA): studies, methods and experiences” was conceived. The proposal of this event...

Trabalhar com sistemas sustentáveis é um grande desafio para o setor agrícola. Os sistemas integrados (SI), além de promover a sustentabilidade, podem resultar em aumentos rápidos e significativos na oferta de carne, grãos e madeira simultaneamente. O objetivo deste estudo é analisar e comparar a viabilidade econômica dos SIs, por meio da análise d...

In the world, the majority of farms are family-based. However, migration of young people from rural to urban areas, and a lack of farm successors negatively impact on the continuity of family farming. The pattern of migration is unbalanced in terms of gender: women are more likely to leave rural areas than men, which has negative consequences for r...

Esta obra foi construída a várias mãos, contando com a participação direta de 32 profissionais, entre “Embrapianos” e parceiros, e tantos outros que contribuíram ao longo dos anos fornecendo dados de experimentos, de sistemas de produção reais ou modais ou ainda realizando simulações sobre o comportamento técnico-econômico dos sistemas de Integraçã...

Os sistemas de integração têm sido propostos como solução tecnológica sustentável para a produção agropecuária brasileira. Porém, tal assertiva tem-se baseado principalmente em dois pilares da sustentabilidade: o agronômico e o ambiental, em detrimento do terceiro pilar, o econômico. Logo, o objetivo deste artigo é avaliar, por meio de análise de i...

This study analyses the economic viability of Carbon Neutral Brazilian Beef (CNBB), proposed by EMBRAPA, as an alternative for sustainable intensification of beef farming in Brazil. A 12-year cash flow was built for two integrated crop-livestock-forestry systems (ICLF) in the Cerrado region, following the guidelines of CNBB protocol. Both included...

Trabalhar com sistemas sustentáveis é um grande desafio para o setor agrícola. Os sistemas integrados (SI), além de promover a sustentabilidade, podem resultar em aumentos rápidos e significativos na oferta de carne, grãos e madeira simultaneamente. O objetivo deste estudo é analisar e comparar a viabilidade econômica dos SIs, por meio da análise d...

O uso de sistemas em Integração Lavoura-Pecuária-Floresta (ILPF) para produção de carne bovina é realidade no Brasil. Entre suas vantagens estão a intensificação sustentável do uso da terra, a diversificação da produção, a conservação do solo, o melhor uso dos recursos naturais e dos insumos, a redução da pressão pela abertura de novas áreas (efeit...

This study analyses the economic viability of forestry in integrated farming systems (IFS) in Brazil. A 12-year cash flow was built with both experimental data and estimates for three IFS in the Savannah region: ICL (crops + cattle); ICLF1 (ICL + 227 eucalyptus trees/ha); and ICLF2 (ICL + 357 eucalyptus trees/ha). Investment analysis showed all IFS...

O objetivo foi identificar e selecionar indicadores que avaliem a sustentabilidade da pecuária de corte e, a partir deles, criar um índice de sustentabilidade global (ISG) que agregue, simultaneamente, as dimensões gerencial, econômica, social e ambiental/produtiva. O índice de sustentabilidade é um valor numérico, dentro de um intervalo pré- defin...

This paper analyses the diversity of goals and values amongst 26 Brazilian commercial-scale beef farmers previously identified as exhibiting progressive technology adoption behaviours, and considers the implications for the agricultural innovation system (AIS). Following the Q-methodology guidelines, four main sets of goals and values were identifi...

Na atual conjuntura, a bovinocultura tem sido pressionada por outras atividades agrícolas, para produção de grãos, fibras e biocombustíveis, em decorrência do crescente aumento na demanda por estes produtos, além da maior conscientização da sociedade acerca dos processos de produção da pecuária, elevando as exigências relacionadas à qualidade dos p...

This work aims to analyze the economic viability of three integrated production systems, with different densities of eucalyptus trees. Three integrated systems [ICL (soybean + hay + cattle); ICLF1 (ICL + 227 eucalyptus trees/ha); and ICLF2 (ICL + 357 eucalyptus trees/ha)] were studied in Campo Grande region, MS, Brazil. Investment analysis was used...

Esse trabalho descreve uma fazenda hipotética de pecuária de ciclo completo, típica do Mato Grosso do Sul, e apresenta os custos de produção associados. Essa publicação é a primeira de uma série e aborda um caso de baixo nível tecnológico.

Abstract This study aimed to describe and compare the observed changes in modal systems of beef cattle production in the region of Campo Grande/MS, in a horizon of seven years, according to experts of the production chain. Through expert panels, typical production systems in the region were identified, with the economic and technical results analyz...

Title: Managerial practices and tools adopted by beef cattle farmers in selected Brazilian States: reflections for R&D managers and rural consultants Abstract The management issue in beef cattle farms is critical and is pointed as one of the main bottlenecks in the beef production chain. This study aimed at assessing the practices and management to...

This study aimed to evaluate the economic performance of three production systems combining cattle, crops and forest, based on research results obtained in Mato Grosso do Sul State, Brazil: iLP, integrating crop and pastures; iLPF1, which besides crop and pastures, includes eucalyptus in a lower density; and iLPF2, differing from iLPF1 for a higher...

The objective of this study was to understand the decision making process on the adoption of protein supplementation during the dry season from the farmers' perspective. A qualitative approach based on Grounded Theory was used through semi-structured interviews with 26 farmers. Ethnographic Decision Tree Modeling was used to model decisions. The fa...

This study draws on social-psychology in an attempt to identify the various motivations for technology adoption (TA), including both economic and non-economic, and to gain insights into how and why Brazilian innovative beef farmers make decisions about whether or not to adopt particular technologies. Three major research questions are addressed: (1...

The adoption of 45 production, environmental and managerial technologies by 26 Brazilian innovative beef farmers is analysed in relation to technology attributes and adoption rationale. The farmers were purposively selected based on their self-enrolment in an organisation or program that promotes beef farming innovations. They were interviewed usin...

The rise in oil prices has spurred interest in biofuels. Policies in the United States like the renewable fuel standard (RFS) have led to an expansion of ethanol production, while the New Zealand government has mandated a minimum level of biofuel sales.The research used a partial equilibrium model of international trade to quantify the price and fa...

http://old.cnpgc.embrapa.br/publicacoes/doc/doc158/DOC158.pdf

This paper presents an important problem for the Brazilian economy, the classification of bovine raw hide and leather, and argues that this problem can be handled by computer vision and machine learning techniques. Some promising results, using standard techniques, like color based models and cooccurrence matrix based texture analysis, are reported...

http://old.cnpgc.embrapa.br/publicacoes/doc/doc_pdf/Doc153.pdf

http://old.cnpgc.embrapa.br/publicacoes/cot/pdf/COT94.pdf

http://old.cnpgc.embrapa.br/publicacoes/cot/pdf/COT92.pdf

http://old.cnpgc.embrapa.br/publicacoes/cot/pdf/COT92.pdf

The marketing pressures for economically viable, socially fair and ecologically correct production systems have required the farmers to adopt new management practices, aiming to increase the production scale, improve the quality of the products, and reduce costs. The historical utilization of abundant, cheap and disqualified labor in the rural sect...

The marketing pressures for economically viable, socially fair and ecologically correct production systems have required that farmers adopt new management pratices, aiming to increase the production scale, improve the quality of the products, and reduce costs. The historical utilization of abundant, cheap and disqualified labor in the rural sector...

Foram utilizadas 40 leitoas mestiças (Hampshire, Landrace Belga, Pietran) com peso inicial médio de 30,1±1,25 kg e alto potencial genético para deposição de carne magra na carcaça, para avaliar diferentes níveis de lisina. Foi usado delineamento de blocos ao acaso com quatro tratamentos, cinco repetições e dois animais por unidade experimental. Os...

Introdução O setor de couros é um dos que apresenta maior abertura ao comércio exterior, gerando emprego, renda e divisas significativas para o Brasil. A indústria do couro tem, no entanto, encontrado dificuldades para obter matéria-prima de qualidade, essencial ao desenvolvimento de seu parque industrial, especialmente para as fases de maior valor...

Biopharming is an agricultural technology on the cusp of commercialisation. The technology uses genetically modified crop plants and animals to produce pharmaceuticals. Biopharm crops are now grown in the United States and Europe, and biopharm animals are being raised in New Zealand and elsewhere. The Agribusiness and Economics Research Unit (AERU)...