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A busca continua pela maximizacao da producao de ruminantes e pela reducao de seus efeitos negativos no meio ambiente tem estimulado, nos ultimos anos, o desenvolvimento e implementacao de diversas estrategias nutricionais e de alimentacao animal. Produto desta otimizacao, obtiveram-se melhorias consideraveis, em termos de maior eficiencia produtiva e qualidade composicional dos produtos derivados de ruminantes. Essas tendencias de “produzir mais com menos”, “produzir limpamente” e de “melhorar a qualidade nutricional” dos produtos derivados da producao de ruminantes tem exigido, nos ultimos anos, maior intensidade na transdisciplinaridade. Isso implica que as ciencias agrarias e...
Variations in feeding frequency may lead to difference in utilization of dietary nutrients. The effects of feeding frequency have been tested in growing pigs and finishing pigs using respiratory quotient and postprandial kinetics of plasma metabolites. A reduced feeding frequency resulted in an increased lipogenesis and proteolysis shortly after the meal both in growing and finishing pigs. Nevertheless, growing and finishing pigs exhibit different metabolic pathways when feeding frequency is reduced.
The first book dedicated to the potential applications and unique properties of bacterial cellulose (BC), this seminal work covers the basic science, technology, and economic impact of this bulk chemical as well as the companies and patents that are driving the field. It reviews the biosynthesis and properties of BC, including genetics and characterization; discusses the advancing technology as it relates to product development, bioreactors, and production; and analyzes the economic impact of BC on a diverse range of industry applications, including materials and biomaterials, biological and polymer sciences, and electromechanical engineering.
This reference text covers the latest developments in biochar materials research, a field which is becoming increasingly popular due to the potential of biochar to replace carbon materials derived from non-renewable sources. Emerging and innovative applications of biochar materials are discussed, and all aspects of the field are covered, from production to applications, including details on the techniques used. There is a particular focus on biochar as a material for composites and sensors. This is the first book to cover emerging applications of biochar as an innovative, versatile, carbon-based renewable material, beyond its traditional uses in agriculture. It is a valuable reference for all researchers in the fields of biochar and carbon materials, including industry practitioners.
This book provides important aspects of sustainable degradation of lignocellulosic biomass which has a pivotal role for the economic production of several value-added products and biofuels with safe environment. Different pretreatment techniques and enzymatic hydrolysis process along with the characterization of cell wall components have been discussed broadly. The following features of this book attribute its distinctiveness: This book comprehensively covers the improvement in methodologies for the biomass pretreatment, hemicellulose and cellulose breakdown into fermentable sugars, the analytical methods for biomass characterization, and bioconversion of cellulosics into biofuels. In addition, mechanistic analysis of biomass pretreatment and enzymatic hydrolysis have been discussed in details, highlighting key factors influencing these processes at industrial scale.
Metal Metabolism in Aquatic Environments is a synthesis of recent developments in the field of metal ecotoxicology and features a number of contemporary issues arising from the interaction of metals and biota, such as pathways of assimilation and food chain transfer, metal accumulation and detoxification in humans and biotransformation of elements such as mercury and arsenic.
This classic is organized as follows: I. The Relationship Between Buildings, Monuments, and Public Squares II. Open Centers of Public Places III. The Enclosed Character of the Public Square IV. The Form and Expanse of Public Squares V. The Irregularity of Ancient Public Squares VI. Groups of Public Squares VII. Arrangement of Public Squares in Northern Europe VIII. The Artless and Prosaic Character of Modern City Planning IX. Modern Systems X. Modern Limitations on Art in City Planning XI. Improved Modern Systems XII. Artistic Principles in City Planning— An Illustration XIII. Conclusion