This study evaluated the economic impact of gastrointestinal nematode (GIN) infection in Morada Nova lambs under different parasite chemical control conditions. For this, 246 lambs, in the rainy and dry season, were randomized into groups according to their anthelmintic treatment with levamisole: control (CT: no treatment); routine treatment (RT: treated every 42 days); and targeted selective treatment (TST: treated according to the average daily weight gain, DWG). From 63 days of age (D63) to D210, the lambs were weighed and monitored for GIN infection parameters. Spending on anthelmintics in the production system was 1.3% of the total economic result. The economic result per animal (R$ 5.00 = US$ 1.00) was higher in the RT group, amounting to US$ 6.60 in the rainy and US$ 5.69 in the dry season, due to higher DWG. Thus, RT presented economic results 14.4% and 10.9% higher than CT, and 7.2% and 1.9% higher than TST, in the rainy and dry season, respectively. However, fast development of resistance made RT unfeasible. Here, the economic impact of GIN infection on a national scale is discussed, demonstrating its importance and the impossibility of profitable and sustainable sheep production without adequate control.

The objective of this work was to evaluate the spatial and temporal variability of the dry matter yield of irrigated corn for silage, as well as its economic return. The study was conducted in an irrigated silage corn field of 18.9 ha in the municipality of São Carlos, in the state of São Paulo, Brazil. The spatial variability of the yield of three crop seasons, normalized yield indexes, production cost, profit, and soil electrical conductivity (EC) were modeled using semivariograms. Yield maps were obtained by kriging, and management zones were mapped based on average yield, normalized index, and EC. The results showed a structured spatial variability of corn yield, production cost, profit, and soil EC within the irrigated area. The adopted precision agriculture tools were useful to indicate zones of higher yield and economic return. The sequences of yield maps and the analysis of spatial and temporal variability allow the definition of management zones, and soil EC is positively related to corn yield.

Abstract:The main objective of this study was to use the business process management methodology to strengthen the process of " Economic, social, and environmental Resumo: O objetivo deste estudo foi, a partir da análise e melhoria do processo, fortalecer o processo de "Avaliação dos impactos econômicos, sociais e ambientais de tecnologias da Embrapa Pecuária Sudeste". Utilizou-se uma metodologia baseada no ciclo PDCA, que possibilitou a indicação do ponto-chave (inventário das tecnologias), do fator crítico de sucesso (seleção das tecnologias adotadas), do principal problema (não avaliação das tecnologias), e das principais causas do problema. Com a implantação das ações de melhoria, detectaram-se as vantagens do uso da metodologia, que são: a disponibilização de informações aos executores do processo, para facilitar a realização do trabalho com qualidade, uma vez que foram claramente definidos nesta análise o objetivo, os clientes, os indicadores de desempenho, os produtos e os resultados esperados. Verificou-se a importância da organização e disponibilização de banco de dados com informações sobre as demandas, resultados de pesquisa, e estágio de desenvolvimento de tecnologias. Os clientes internos foram sensibilizados para a necessidade do processo. Demonstrou-se que o processo também é ferramenta útil para a gerência de P&D, para acompanhar passo a passo as quatro fases de: 1) levantamento de demandas; 2) elaboração e execução de projetos; 3) difusão, transferência e inovação; e 4) avaliação de impactos. Verificaram-se várias descontinuidades no processo gerência de P&D. A Análise e Melhoria de Processos -AMP pode ser assimilada e posta em prática por instituições de pesquisa pública, e deve ser estimulada constantemente para ser assimilada e praticada.Palavras-chave: Gestão de processos. Melhoria da qualidade. Ciclo PDCA. Brainstorming.Análise e melhoria do processo de avaliação dos impactos econômicos, sociais e ambientais de tecnologias da Embrapa Pecuária Sudeste

This study evaluates the economic outcome of a study on confined lamb crossings for meat production taking into account two weaning ages and two slaughter weights: weaning age of 60 days with two slaughter weights respectively of 32 and 38 kg, and weaning age of 90 days and 32 and 38 kg slaughter weights. The genetic groups used in the study were Dorper, Ille-de-France, Santa Inês, Texel crossed with the Brazilian Santa Inês breed. Economic performances expressed as average profit per head varied depending on genetic groups and slaughter ages and weights. The Dorper was more profitable at 60 days of weaning age and slaughter weight of 32 kg (profit R $ / head = 37.14). Under the experimental conditions prevailing in the study for the 60-day weaning age and 38 kg slaughter weight, Ille-de-Fance had the highest profit (R $ / head = 67.72). Santa Inês obtained the best economic result with weaning at 90 days and slaughter weight of 32 kg (profit R $ / head = 59.46). The highest average profit per head fell to the genetic group ½ Ille de France and ½ Santa Inês (profit R $ / head = 105.03), with 90 days of age at weaning and slaughter weight of 38 kg.

It was evaluated the productive efficiency in asset management (pastures, herds and labor) for a sample of twenty-eight full cycle beef production systems, located in the west of the state of São Paulo. For this purpose, the mathematical programming technique known as Data Envelopment Analysis (DEA) was used. An input-product model employed with the representative production variable, the annual gross revenue from the sale of animals and as inputs the assets of the production, pasture area, number of animals in the herd, fixed labor (family and fixed employees) and temporary labor. The result was an average production efficiency for the twenty-eight production systems of 64.9%. Therefore, there is a potential for realizing revenue 45.1% more than that observed, using the same assets, as long as inefficient systems improve their management.