The latest edition of Animal Nutrition has been updated thoroughly to provide a clear and comprehensive introduction to the science and practice of animal nutrition. This classic, market-leading text is a trusted resource for undergraduates studying Animal Science, Veterinary Science, Agriculture, Biology and Biochemistry. It is supported by key experimental evidence throughout about modern advancements in animal food nourishment, composition of foods and feeding standards for dairy and beef cattle, sheep, pigs and poultry, horses, and cats and dogs. It is split into six main sections covering: The components of food; The digestion and metabolism of nutrients; Quantifying the nutrient content of foods: digestibility, energy and protein values; The nutrient requirements of animals; The nutritional characteristics of foods; and Animal products and human nutrition. Quantitative aspects of the subject are clearly explained and illustrated by worked examples. Problems have been added to all chapters to aid student learning and the appendices include solutions to all chapter-end numeric questions. This edition includes nutritional topics related to molecular biology, the environment, and companion animals - dog and cat nutrition has been expanded. Under nutrient requirements of animals, usage of novel foods such as insects has also been added. Chapter-end summaries and questions allow students to recap and test their knowledge of the chapter topic.

Developed for Introduction to Soils or Soil Science courses, The Nature and Properties of Soils, 15th Edition, can be used in courses such as Soil Fertility, Land Resources, Earth Science and Soil Geography. The Nature and Properties of Soils is designed to engage today's students with the latest in the world of soils. This hallmark text introduces students to the exciting world of soils through clear writing, strong pedagogy, and an ecological approach that effectively explains the fundamentals of soil science. Worked calculations, vignettes, and current real-world applications prepare readers to understand concepts, solve problems, and think critically. Written for both majors and non-majors, this text highlights the many interactions between the soil and other components of forest, range, agricultural, wetland and constructed ecosystems. Now in full-colour, the 15th Edition includes hundreds of compelling photos, figures, and diagrams to bring the exciting world of soils to life. Extensively revised, new and updated content appears in every chapter. Examples include: coverage of the pedosphere concept; new insights into humus and soil carbon accumulation; subaqueous soils, soil effects on human health; principles and practice of organic farming; urban and human engineered soils; new understandings of the nitrogen cycle; water-saving irrigation techniques; hydraulic redistribution, soil food-web ecology; disease suppressive soils; soil microbial genomics; soil interactions with global climate change; digital soil maps; and many others.

'An important and timely book' from the Foreword by Stanley Johnson 'A complete and absorbing history of a decade of intense international politics offers many insights for future negotiators of sustainable solutions' Stephen Bass, International Institute for Environment and Development 'Skillfully navigates the jungle of forest politics, leaving us in no doubt that the verbal commitment to save the world's forests has yet to be translated into action on the ground. The way forward must clearly lie in political commitments and international cooperation if forests are to continue to preserve life on Earth' Francis Sullivan, World Wide Fund for Nature Global deforestation and its attendant processes - including soil degradation, climate change and the loss of biological diversity - emerged as international political issues during the 1980s, prompting politicians to seek consensus on programmes and policies for the conservation and sustainable management of forests. Yet global initiatives have been bedevilled by tensions between the North and South and between governments, industry, local communities and indigenous peoples. Meanwhile, rates of deforestation in the tropics are increasing, and international political efforts are demonstrably failing. Forest Politics carefully traces the evolution of international cooperation on forests, from the inception of the controversial International Tropical Timber Organization and the failed Tropical Forestry Action Programme in the mid-1980s, to the creation of the Intergovernmental Panel on Forests in the mid-1990s. The book also provides a detailed analysis of the negotiating stances of the parties involved in the divisive negotiations that rook place prior to the 1992 'Earth Summit' in Rio de Janeiro and the equally factious negotiations for the International Tropical Timber Agreement of 1994. It provides a fascinating insight into the nature of such processes, illustrating the difficulties that arise when concepts such as 'global commons' come into conflict with national sovereignty. Complete with annexes of important political documents, and making extensive use of primary source material and interviews with participants. Forest Politics presents case studies of all the major forest negotiations over the last 13 years. It is an essential reference point for policy makers, environmental campaigners and students, and required reading for all those who care about the future of the world's forests. David Humphreys is Research Fellow in Global Environmental Change at the Open University. Originally published in 1996

The depletion of the tropical rain forests has attracted considerable attention in recent times, and the serious consequences for the global biosphere are widely acknowledged. Yet deforestation continues apace, and in some areas (for example, southeast Asia) the very existence of the forests is seriously threatened. Contrary to popular belief, evidence suggests that local economic and living conditions are more significant in this than timber exploitation for exports to the Northern countries."Tropical Deforestation: A Socio-Economic Approach" offers a new perspective on the economic imperatives which encourage indigenous populations to encroach upon their own forests, and shows how action against deforestation must form part of a wider movement to improve both the living conditions of the local inhabitants and the durability of their national economies.Part One offers an overview of the processes surrounding deforestation, and an assessment of the current situation. Part Two analyses the land-use issues, and explains the socioeconomic imperatives in the affected regions. In an absorbing conclusion. Part Three guides the reader through a series of hypothetical policy scenarios, using a specially adapted economic computer model, to predict which combinations of policies and trade arrangements might bring about a more beneficial state of affairs.

This text is a synthesis of research in production and management since the inception of the discipline as an agricultural science in the 1930s. All the ecological regions are covered extensively, but the main emphasis is on the three biomes (grassland, savanna and karoo) which produce the bulk of the forage supporting the domestic livestock, conservation and the game farming industries. The book has an audience beyond the borders of South Africa in the grassland and savanna areas which stretch through southern and central Africa.;The text is aimed at students concerned with the management of natural ecosystems and also livestock producers and game ranchers who rely on the veld to feed their animals. The text throughout emphasizes the interpretation and application of research results to the practical situation.;All major aspects of veld production and management are covered in this book. It outlines the physiological and ecological principles on which management is based and which underpin the science. The book presents management options based on these underlying principles before dealing with recommended management procedures in each of the main ecological regions of the country.;The contributions to this book collectively represent a component of the expertise available on issues related to veld management in South Africa. They are veld and animal production researchers, conservation managers and planners working both at a practical level, closely in touch with livestock and game farmers, and at the more theoretical level as teachers at colleges and universities.

Landowners and managers, municipalities, the logging and livestock industries, and conservation professionals all increasingly recognize that setting prescribed fires may reduce the devastating effects of wildfire, control invasive brush and weeds, improve livestock range and health, maintain wildlife habitat, control parasites, manage forest lands, remove hazardous fuel in the wildland-urban interface, and create residential buffer zones.

In this practical and helpful manual, John R. Weir, who has conducted more than 720 burns in four states, offers a step-by-step guide to the systematic application of burning to meet specific land management needs and goals.

8 lectures, Koberwitz, June 7-20, 1924 (CW 327) The audio book, complete and unabridged (10 CD set), is read by respected actor and speech teacher Peter Bridgmont, author of Liberation of the Actor When Rudolf Steiner gave these lectures eighty years ago, industrial farming was on the rise and organic methods were being replaced in the name of science, efficiency, and technology. With the widespread alarm over food quality in recent years, and with the growth of the organic movement and its mainstream acceptance, perceptions are changing. The qualitative aspect of food is on the agenda again, and in this context Steiner's only course of lectures on agriculture is critical to the current debate. With these talks, Steiner created and launched "biodynamic" farming--a form of agriculture that has come to be regarded as the best organically produced food. However, the agriculture Steiner speaks of here is much more than organic--it involves working with the cosmos, with the earth, and with spiritual beings. To facilitate this, Steiner prescribes specific "preparations" for the soil, as well as other distinct methods born from his profound understanding of the material and spiritual worlds. He presents a comprehensive picture of the complex dynamic relationships at work in nature and gives basic indications of the practical measures needed to bring them into full play. These lectures are reprinted here in the "classic" translation made by Rudolf Steiner's English interpreter, George Adams. This edition also features a preface by Steiner's colleague the medical doctor Ehrenfried Pfeiffer, as well as eight color plates. This is the course that began the biodynamic movement. Rudolf Steiner's Agriculture Course is the essential work for anyone wanting to understand and use Steiner's methods of food production. This book is a translation from German of Geisteswissenschaftliche Grundlagen zum Gedeihen der Landwirtschaft. Landwirtschaftlicher Kursus (GA 327).

Each co-product feed, often erroneously labelled as processing waste, is described precisely, allowing the reader to distinguish between grains and supergrains, peeled potato and potato peel, steep liquor and spent wash. It describes, for example, how sugar beet fields are audited to ensure good farming practice, how cooking destroys the anti-nutritional factor in raw potatoes, and chopping reduces the risk of choking and how the extraction of sugar and starch leads to higher energy value feeds. Guidance on feeding is provided, with cautionary notes for the farmer and pointers to the factory, where improved practices can enhance feed quality and increase demand.

This collection features three peer-reviewed literature reviews on pesticide residues in agriculture. The first chapter outlines the ways in which pesticide use can lead to increased pest problems, such as pest resurgence and replacement, and the development of pesticide resistance. The chapter examines current strategies for mitigating the impacts of pesticides and refers to a detailed case study on the diamondback moth (DBM) to demonstrate the practical application of these strategies. The second chapter explores the threat of pesticide poisoning to human health, either via deliberate self-poisoning or via occupational exposure. It discusses how best to monitor exposure to pesticides, as well as how to minimize the human health risks that may arise as a result of their use/exposure. The authors refer to a case study on smallholder cotton farmers in the Republic of Benin to emphasise the global pesticide poisoning crisis. The final chapter reviews the environmental impacts of pesticide use in agriculture, focussing on their contribution to global human and ecological health issues. It provides an overview of how pesticides are currently addressed in emission inventory and impact assessment, and discusses the relevance of spatiotemporal variability in modelling emissions and the toxicity and ecotoxicity impacts of pesticides.