Introducing a new engineering product or changing an existing model involves making designs, reaching economic decisions, selecting materials, choosing manufacturing processes, and assessing its environmental impact. These activities are interdependent and should not be performed in isolation from each other. This is because the materials and proce
This handbook focuses on the use of antibiotic alternatives in poultry and fish feed. Chapters in the book cover a range of natural ingredients in feed and the impacts of these natural feed additives on growth, production, reproduction and health status of poultry and fish. All chapters give a holistic approach to how organic feed additives (herbal plants and their extracts, probiotics, peptides, etc.) can positively impact animal health and production. Key Features: - presents 13 chapters contributed by 38 experts and scientists of animal, poultry and fish nutrition, poultry and fish physiology, toxicology, pharmacology, and pathology - highlights the significance of herbal plants and their extracts and derivatives, cold-pressed and essential oils and fruits by-products - covers the effects of special ingredients such as immunomodulators, antimicrobial peptides, and probiotics - provides the reader an updated perspective on the use of additives in poultry and fish industry as growth promoters and their role in developing bacterial resistance to antibiotics - covers the main poultry species, egg-laying hens, quails, geese, ducks, turkey, and commercial fish - includes references for advanced readers This book will be useful for poultry and fish keepers and researchers in animal nutrition, pharmacology, and veterinary sciences. Professionals involved in the poultry and fish feed industry will also find the information useful for product development.
Creating a successful sculpture requires an imaginative concept and a sound design that utilize the potential and avoid the limitations of the material and the process used in making it. Prior to a few decades ago, most sculptors were restricted to carving stone and wood or casting plaster, ceramics and bronze for their creations. Contemporary sculptors, however, are no longer bound by the limitations of these traditional materials and processes, and can now create works in sizes, forms and textures that could not have been achieved previously. Many modern sculptures are now made from materials ranging from steel and aluminum to plastics and composites using processes ranging from welding and adhesive bonding to molding and 3D printing. To fully utilize the full potential of such new materials, the sculptor needs to understand their points of strength, their limitations, and the most effective way of shaping them to achieve a given design. Although this book is written by a materials engineer, the subject matter is presented from the point of view of the sculptor with emphasis on the strengths and weaknesses of different materials, their resistance to weather conditions, natural color and possible surface textures, possible methods of shaping and joining, tools and equipment needed, and safety measures to take. Whenever possible, case studies are used to illustrate the sequence of processes and the cost elements involved in shaping a given material to create an actual work of sculpture.
Creating a successful sculpture requires an imaginative concept and a sound design that utilize the potential and avoid the limitations of the material and the process used in making it. Prior to a few decades ago, most sculptors were restricted to carving stone and wood or casting plaster, ceramics and bronze for their creations. Contemporary sculptors, however, are no longer bound by the limitations of these traditional materials and processes, and can now create works in sizes, forms and textures that could not have been achieved previously. Many modern sculptures are now made from materials ranging from steel and aluminum to plastics and composites using processes ranging from welding and adhesive bonding to molding and 3D printing. To fully utilize the full potential of such new materials, the sculptor needs to understand their points of strength, their limitations, and the most effective way of shaping them to achieve a given design. Although this book is written by a materials engineer, the subject matter is presented from the point of view of the sculptor with emphasis on the strengths and weaknesses of different materials, their resistance to weather conditions, natural color and possible surface textures, possible methods of shaping and joining, tools and equipment needed, and safety measures to take. Whenever possible, case studies are used to illustrate the sequence of processes and the cost elements involved in shaping a given material to create an actual work of sculpture.
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