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.

Originally published in English in 1957 this book quickly became a classic of comparative agricultural studies. The book brings together a wide range of case studies from the UK, Europe, Africa and South East Asia which together form a broad yet highly detailed view of world agriculture in the 20th Century.

Originally published in 1985, this book argues forcefully and practically for new relationship between science and the small farmer. It advocates scientific research seeking out changes which are already taking place within the smallholder farming sector and building on local initiatives. Drawing on his experience of West Africa, the author demonstrates that many of the most successful innovations in food-crop production during the 20th century have indigenous roots and that there should therefore be less emphasis on ‘teaching’ farmers how to farm and more emphasis on how to foster and support local adaptation and inventiveness. This book will be of interest to students of agriculture, environmental studies and rural development as well as those working with relief and development agencies.

Originally published in 1986, Coping with Hunger demonstrates that effective agricultural development in resource-poor regions must be based in a respect for the indigenous farmer’s understanding of the environment. Based on participant-observation of rice farming in Sierra Leone, the book challenges the prevailing of attitudes of policy makers in the late 20th Century and restores indigenous culture and local wisdom to their rightful place. After analysing the fate of a number of ‘top-down ‘attempts to improve rice cultivation in Sierra-Leone the author derives an alternative agenda of research and development issues more closely reflecting the resource-poor farmers’ major interests and priorities. As a significant research-based contribution to the widespread general debates about the relevance of social factors in technological change, this book will be of interest to students in social and environmental sciences.

Originally published in 1971, this book is a systematic study of the major features and factors of the location and distribution of global agricultural enterprises. Special emphasis is given to approaches to the subject developed by economists and economic geographers, but all aspects of agricultural geography are reviewed including physical environmental problems. An introduction to the problem of classification and data collection together with instruction in some simple analytical techniques is given to equip the student with the basic methods for their own research.

Originally published in 1984, this text was written as a guide to agricultural policy makers, planners and project managers in developing countries, particularly for those in the areas of programme formulation and implementation. Elements from successful agricultural and rural development plans have been selected. The work discusses the link between agricultural and overall planning, the various aspects of agricultural planning (including the usual components and deficiencies of plans, time horizons and scope of plans, and regional planning), and it concludes with brief look at the preparation of a plan and objectives for agricultural development.

Originally published in 1989, this book is a unique examination of subsistence farming in the developing world, and its potential for development. The author writes from the conviction that the farming system is limited in its potential for development by the energy value of manpower and that unless the plight of developing world communities is understood and the importance of manpower constraint recognized, inputs of development funds will be wasted. Clarifying the strengths and limitations of the subsistence farming system, the book makes clear the complexities and difficulties encountered in achieving agricultural development in the poorest countries – providing an informed insight into the inevitability of future famine.

Originally published in 1973, this book tells the story of the English countryside and its inhabitants between 1560 and 1760; the time when British agriculture became the wonder and envy of the world. The history of the land itself is covered, as well as farming techniques and a farming as a business. The day-to-day existence of rural people, their ambitions and conditions of work are brought to life. The book distils the history of rural England and takes the reader to the heart of England itself.

Originally published in 1967, this was the first book to discuss why agricultural supply became more ‘responsive’ and to provide broadly based evidence of the ways in which that ‘responsiveness’ may have influenced the growth of the economy. The editor chose 7 essays, reprinted in full, to illustrate altered perspectives of agricultural change. His substantial introduction places the beginnings of a significant rise in farm output as far back as the mid-seventeenth century and concludes that agriculture played a vital but complicated role in the economy of eighteenth-century England.

Originally published in 1994, this book examines the importance of family agricultural systems in both the developed and the developing worlds. Throughout the world, and throughout history, the family unit has been at the heart of agricultural systems. Working together, families not only furnish their own needs, but form the basis for society itself: they provide the labour, population, resources and the market to maintain much of the world’s economic and social development. But the global race for financial prosperity, with its large-scale intensive farming techniques, is increasingly undermining the family’s role in food production and social cohesion. This book explores both traditional and modern farming techniques and looks at their different consequences for national agricultural resources and for rural societies. Finally, it suggests ways in which technology can be harnessed to meet the needs of the family rather than undermine it, in order to achieve a viable and sustainable agriculture for the future.

Originally published in 1987, this book is written primarily for planners, public administrators and project managers in countries or international agencies considering a development strategy in which agribusiness and rural enterprise projects are viewed as a desirable policy instrument for generating employment and income. It makes available the background and methodology of project analysis so that agribusiness and rural enterprise project can be designed, implemented and reviewed effectively in a wide range of circumstances. It outlines how to establish objectively the potential and limitations of agribusiness and rural enterprise projects; provides guidelines for deciding whether a project can be effective; considers the policy issues relating to such projects and suggests techniques for judging project performance.

Originally published in 1991, this book includes a detailed case study of Kenya’s co-operative movement – one of the largest in sub-Saharan Africa. Co-operatives have been given a major role in rural development strategies in both socialist and capitalist states. However in both context the results they have achieved have fallen short of expectations. The book focuses on specific elements of the institutional setting within which agricultural marketing co-operatives operate. Factors like land tenure, market regulations, co-operative legislation and direct development support are discussed and shown to have had dire effects on the managerial behaviour and social impact of the co-operative sector.

Originally published in 1975, yet prophetic in its wisdom this book deals with major aspects of man’s ecological destruction in an industrial framework. As well as discussing the destruction of forests by early civilizations the book examines the rate and extension of environmental deterioration in more recent times and the importance of the integrated ‘feed-back’ controls which maintain stability in the ecosphere of which humankind forms a part. Examining the role of entropy, energy quanta and indeterminacy in overthrowing both science and economic theory, the book provides examples from the 20th Century of the uncontrolled demands for energy and material resources, as well as of increasing toxic hazard in the biosphere.

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.