Hacia una teoría de la industria maquiladora mexicana que considere los impactos en el medio ambiente

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La industria argentina: un proceso de reestructuración desarticulada

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Productividad y heterogeneidad estructural en la industria brasileña

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Uso y difusión de las TIC en el tejido empresarial argentino: resultados de una encuesta en los sectores de la industria, el comercio y los servicios

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Empleo y organización del trabajo en el marco de la difusión de TIC en el tejido productivo de la Argentina: industria manufacturera, comercio y servicios

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Industria y medio ambiente en México y Centroamérica: un reto de supervivencia

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Fatores antinutricionais e coeficientes de digestibilidade aparente da proteína de produtos de soja para o pacu (Piaractus mesopotamicus)

This study aimed to determine the activities of trypsin inhibitors, hemagglutinant and tannin levels in soybean meal and in raw and processed soy, as well evaluate the protein apparent digestibility coefficient for pacu juveniles. The apparent coefficients of raw, extruded, toasted and milled soy were determined using chromium oxide (0.5%) as marker. A reference diet was created with 26% crude protein and 4,352 kcal kg-1, with each feed containing 30% of the test diet. Feces were collected by abdominal pressure. All analyzed products presented anti-nutritional factors, but the lowest trypsin inhibitor activity was observed in soybean meal. Soy that received thermal treatment presented better digestibility coefficients and lower hemagglutinating activity values than raw soy. No effects of trypsin and tannin inhibitor were observed on the protein digestibility coefficient, but a negative relationship was observed between hemagglutinin levels and protein digestibility coefficient. The use of soybean meal and extruded or toasted soy is recommended for pacu feeding.

Evolución reciente de la industria láctea: el desafío de la integración productiva

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"Tablero de comando" para la promoción de los biocombustibles en Argentina

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Deficiências de macronutrientes em plantas de soja cv. BRSMG 68 (Vencedora) cultivada em solução nutritive

Soybean is a crop of great importance for Brazil, and knowledge of their nutritional status allows production and high quality products. Thus, the present work aimed to evaluate the culture of the soybean cv. BRSMG 68 (Vencedora), submitted to macronutrients omission on the development, nutritional status and the visual symptomatology of nutrient deficiency. The design used was completely randomized, with seven treatments that corresponded to the complete (macro and micronutrients) solution and the individual omission of N, P, K, Ca, Mg and S. The treatments were applied two weeks after the emergency of the soybean. The nutrient solution was constantly oxygenated and replaced weekly, and the pH monitored daily remained around 5. After six weeks of application of the treatments, the height of the plants, number of leaves, stem diameter was evaluated, matter dry accumulated in the roots, it leaves aerial and the nutritional state and the characterization of the visual symptoms. The macronutrient deficiency promoted a decrease in production of root and shoot dry mass of soybean cultivar BRSMG 68 (Vencedora) in nutrient solution, for the full treatment. The most limiting nutrient for dry matter production of soybean compared to complete treatment were N, S and K, with decreases of 90, 76 and 73%, respectively. Individual omissions resulted in morphological changes, which were translated by characteristic visual symptoms of nutritional deficiency of the respective nutrient.

Estudio de priorización de necesidades de investigación en la industria frigorífica

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Control de precios de transferencia en la industria de agua potable y alcantarillado

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Comportamientos microeconómicos en entornos de alta incertidumbre: la industria argentina

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El crecimiento reciente de la industria argentina. Nuevo régimen sin cambio estructural

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