Resource Allocation Theory Applied To Farm Animal Production
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Resource Allocation Theory Applied to Farm Animal Production by Wendy M. Rauw Pdf
This book is about resource allocation matters with the aim to further development thoughts and models on resource allocation applied to livestock production. It contains 18 chapters divided into 4 parts which discuss resources and resource allocation patterns, trade-offs, metabolic constraints to resource allocation and the process of homeorhesis with a special emphasis to homeorhesis during heat stress; the relationship between food intake and resources allocated to body maintenance, growth, reproduction and the immune response; the consequences of high production efficiency in pigs, poultry and dairy cattle and the consequences of improved production by means of biological engineering and options to include resource allocation matters in the breeding objective, animal welfare and in resource allocation modelling.
Livestock Health and Farming by Muhammad Abubakar Pdf
Livestock Health and Farming provides a detailed description of key aspects of livestock health issues and farming practices. Chapters cover such topics as antimicrobial resistance in livestock, nutrition and its role in animal health and farming, nutrition and health management in dairy animals, and livestock feeding in semi-arid regions.
Should we aim for genetic improvement in host resistance or tolerance to infectious disease? by Andrea B. Doeschl-Wilson,Ilias Kyriazakis Pdf
Recent advances in quantitative genetic and genomic studies have shed light on the important role of genetic control strategies for reducing disease risk and severity in livestock populations. There are two alternative host defence strategies to infectious pathogens that could be enhanced by genetic selection: improvement of host resistance versus improvement of host tolerance to infectious pathogens. Resistance refers to mechanisms that restrict the reproduction rate of a pathogen within a host, whilst tolerance mechanisms focus on minimising the damage that a pathogen inflicts on the host. Both strategies may have a similar impact on individual host fitness and performance, but can have contrasting effects on population performance and disease risk and severity. For example, improving host resistance may result in successful eradication of a disease from a livestock population, whereas disease eradication may be difficult if hosts are tolerant as these can harbour the pathogen without showing obvious or severe symptoms. On the other hand, it has been argued that increasing host resistance would fuel the arms race between host and pathogen and stimulate pathogen evolution towards higher virulence. Increasing tolerance, in contrast, imposes no or little selection pressure on the pathogen. Further, whereas disease resistance mechanisms may be specific to a particular pathogen (e.g. development of specific antibodies), tolerance mechanisms that repair damaged tissues are associated with the host rather than the pathogen, and are thus more likely to be generic to a range of pathogens. Hence, improving tolerance may be beneficial if individuals are exposed to a variety of pathogens or pathogen strains, and disease eradication has proven difficult. In contrast to evolutionary biology and plant breeding, animal breeding has only recently started to seriously consider a distinction between disease resistance and tolerance and their consequences. However, a deeper understanding of the underlying mechanisms and implications of improving either or both of the host defence mechanisms on future disease risk and severity is urgently needed by animal scientists, veterinarians and breeders to make informed decisions that help to maintain healthy livestock populations and guarantee food security. The topic ‘genetic improvement of disease resistance v tolerance’ would lend itself to research papers covering a variety of aspects that need to be considered, such as ‘how to obtain genetic parameter estimates and genomic breeding values related to disease resistance / tolerance’, ‘evidence for host genetic influence of resistance or tolerance’, ‘genetic, genomic and immunological understanding of resistance / tolerance mechanisms’, ‘epidemiological consequences of improving disease resistance / tolerance’. I believe that this research topic is both timely and relevant, and that sufficient knowledge is available across disciplines for composing valuable research / review articles that stimulate interest to a wide range of readers of Frontiers, and thus promote the growth of this journal.
Animal Breeding and Genetics by Matthew L. Spangler Pdf
This newly updated and revised volume of the Encyclopedia of Sustainability Science and Technology (ESST) details the role of Animal Breeding and Genetics in the sustainability of animal agriculture. The volume covers scientific principles and applications includes the current science used to advance cattle, poultry, swine,sheep, and equine populations, as well as the future role of techniques such as gene editing. International leaders in the field explain foundational concepts such as heritability, the covariance between relatives, statistical approaches to predicting the genetic merit of individuals, and the development and advancement of molecular techniques to elucidate changes in the DNA sequence that underly phenotypic variation. The use of genetic-based tools to improve animal agriculture and meet consumer demands across species is treated in detail. Readers will gain an understanding of how global livestock producers have implemented advanced genetic selection tools and used them to improve reproduction, production, efficiency, health, and sustainability. The interactions of genetics and production environments, and the genetic components of the complex interactions among animals are also discussed. The future of Animal Breeding and Genetics, including the challenges and opportunities that exist in feeding a growing world population, are addressed.
Feed Efficiency in the Beef Industry by Rodney A. Hill Pdf
Feed Efficiency in the Beef Industry provides a thorough and concise overview of feed efficiency in beef cattle. It frames the great importance of feed efficiency to the industry and details the latest findings of the many scientific disciplines that intersect and aim to improve efficient and sustainable production of nutritious beef. The vast majority of production costs are directly tied to feed. With increased demand for grains to feed a rapidly increasing world population and to supply a new demand for alternative fuels, feed costs continue to increase. In recent years, the negative environmental impacts of inefficient feeding have also been realized; as such feed efficiency is an important factor in both economic viability and environmental sustainability of cattle production. Feed Efficiency in the Beef Industry covers a broad range of topics ranging from economic evaluation of feed efficiency to the physiological and genetic bases of efficient conversion of feed to high quality beef. Chapters also look at how a fuller understanding of feed efficiency is leading to new selective breeding efforts to develop more efficient cattle. With wide-ranging coverage from leading international researchers, Feed Efficiency will be a valuable resource for producers who wish to understand the complexities, challenges, and opportunities to reduce their cost of production, for students studying the topic and for researchers and professionals working in the beef industry.
Biology of Domestic Animals by Colin G. Scanes,Rodney A. Hill Pdf
There is increasing interest in the biology of domestic animals ranging from genomics, transcriptomics, metabolomics, nutritional physiology, and systems biology. This book touches on all of these, with a particular focus on topics such as domestic animals as comparative models to humans, molecular regulation of growth, metabolic efficiency, reproduction, and the impact of stress on growth and development. The book concludes with a discussion on the current and future directions for researchers.
Systems Theory Applied to Agriculture and the Food Chain by J.G.W. Jones,P.R. Street Pdf
Biological and physiological systems: animal sciences. Plant-animal interactions in northern temperate sown grasslands and semi-natural vegetation. Exploitation of the systems approach in technical design of agricultural enterprises. Application of systems theory to farm planning and control: modelling resource allocation. Optimising the mixture of enterprises in a farming system. Farming systems research-extension. Food policy and food security planning: institutional approaches to modelling grain markets and food security in Sub-Saharn Africa. A systems view of commercial supply and marketing links. Agroecosystems. Understanding and managing changes in agriculture. Agricultural sector modelling for policy development. Of agricultural systems and systems agriculture: systems methodologies in agricultural education. Extension education: Top(s) Down, Bottom(s) Up and Other Things.
Animal Welfare, 3rd Edition by Michael C Appleby,Anna S Olsson,Francisco Galindo Pdf
Updated and revised, this bestselling textbook continues to provide a broad introduction to the key topics in the welfare of animals both large and small, farm and companion, wild and zoo. It retains all the popular features of the previous editions with coverage of key issues such as ethics, animal pain and injury, health and disease, social conditions, and welfare dilemmas and problems. Importantly, it also offers practical advice for welfare assessment, with a full section dedicated to the implementation of solutions. With contributions from renowned international experts and a new editorial team, Animal Welfare, 3rd Edition is an essential resource for students and researchers in animal and veterinary sciences and other disciplines considering the science and practice of animal welfare, and for practitioners and decision-makers worldwide.
Improving Animal Welfare through Genetic Selection by Wendy Mercedes Rauw Pdf
In livestock species, breeding goals are aimed primarily at improvement of production traits. However, there are a number of examples where selection for high production efficiency has resulted in reduced welfare through unfavorable outcomes in health and fitness characteristics. These effects raise questions about what is ethically acceptable in animal breeding. Welfare problems may be experienced when physiological balance is disturbed by genetic selection for high production alone, by a mismatch between the environmental challenges and the range of coping responses available to an animal, or from a mismatch between the animal’s needs and their degree of satisfaction. This may be resolved by either improving the environment to support the animal, but also by providing the animal, through genetic selection, with means to adapt to the production environment. The Standing Committee of the European Convention for the Protection of Animals kept for Farming Purposes emphasizes that breeding goals should include health and welfare. The Farm Animal Welfare Council pleas for a greater emphasis in breeding programs on traits associated with good welfare. However, although breeding goals in most farm animal species have been broadened beyond production traits to include functional traits, behavioral traits are rarely included despite their potential to improve animal production and welfare. It is the goal of the present Research Topic to bring together experimental and theoretical research focusing on the genetics of welfare traits and the possibility to improve animal welfare through selection. This topic presents an overview of the relationship between selection for high production and livestock robustness, examples of improving robustness through the introduction of novel traits in livestock breeding, and a discussion on selection methods to address welfare issues. The discussion on sustainability of breeding practices is very alive today and will remain to be an important part of the debate in the future.
Bridging Research Disciplines to Advance Animal Welfare Science by Irene Camerlink Pdf
In recent years there has been a huge rise in interdisciplinary and multidisciplinary research in animal sciences which has accelerated improvements in animal welfare. Down to earth and practical, this book gives guidance on how cross-disciplinary research can advance animal welfare. The aim of the book is to help researchers and graduate animal science students to understand how to advance animal welfare through the integration of disciplines.
Farming, Food and Nature by Joyce D'Silva,Carol McKenna Pdf
Livestock production and its use of finite resources is devastating biodiversity and pushing wildlife to the brink of extinction. This powerful book examines the massive global impact caused by intensive livestock production and then explores solutions, ranging from moving to agroecological farming to reducing consumption of animal products, including examples of best practice and innovation, both on land and within the investment and food industries. Leading international contributors spell out the problems in terms of planetary limits, climate change, resources, the massive use of cereals and soy for animal feed, and the direct impact of industrial farming on the welfare of farmed animals. They call for an urgent move to a flourishing food system for the sake of animals, the planet and us. Some offer examples of global good practice in farming or the power of the investment community to drive change, and others highlight food business innovation and exciting developments in protein diversification. Providing a highly accessible overview of key issues, this book creates a timely resource for all concerned about the environmental, social and ethical issues facing food, farming and nature. It will be an invaluable resource and provide inspiration for students, professionals, non-governmental organisations (NGOs) and the general reader.
Voluntary feed intake in pigs by David Torrallardona,Eugeni Roura Pdf
Understanding voluntary feed intake of pigs enables the precise formulation of pig feeds, ensuring the ingestion of sufficient but not excessive amounts of nutrients to optimise performance. This reference textbook, based on scientific results covers all aspects of feed intake in pigs. It contains up-to-date reviews by renowned scientific experts on different aspects affecting voluntary feed intake and diet selection in pigs. Different physiological factors involved in feed intake regulation, ranging from the sensorial evaluation of feeds, to the hormonal and metabolic regulation of feed intake and the impact of pig health are discussed. The book also deals with aspects such as genetic background of the animals, feeder design, feed manufacturing technology and the use of models to predict feed intake. This book is intended for academics, researchers, students and industry professionals involved in the field of pig nutrition and pig production.
Sentience and Animal Welfare by Donald M Broom Pdf
Sentience – the ability to feel, perceive and experience – is central to the animal welfare debate as it raises the question of whether animals experience suffering in life and death. This book explores and answers these questions in an objective way, based on the latest research and empirical evidence. Beginning with an introduction to sentience, the book investigates why we are so interested in sentience, when, as a species, humans became sentient and how it has changed over time. The book defines aspects of sentience such as consciousness, memory and emotions, and discusses brain complexity in detail. Looking at sentience from a developmental perspective, it analyses when in an individual’s growth sentience can be said to appear and uses evidence from a range of studies investigating embryos, foetuses and young animals to form an enlightening overview of the subject. With a full chapter covering ethical decisions such as animal protection and experimentation, this book is not only an invaluable resource for researchers and students of animal welfare and biology, but also an engaging and informative read for veterinarians and the general public. Sentience – the ability to feel, perceive and experience – is central to the animal welfare debate as it raises the question of whether animals experience suffering in life and death. This book explores and answers these questions in an objective way, based on the latest research and empirical evidence. Beginning with an introduction to sentience, the book investigates why we are so interested in sentience, when, as a species, humans became sentient and how it has changed over time. The book defines aspects of sentience such as consciousness, memory and emotions, and discusses brain complexity in detail. Looking at sentience from a developmental perspective, it analyses when in an individual’s growth sentience can be said to appear and uses evidence from a range of studies investigating embryos, foetuses and young animals to form an enlightening overview of the subject. With a full chapter covering ethical decisions such as animal protection and experimentation, this book is not only an invaluable resource for researchers and students of animal welfare and biology, but also an engaging and informative read for veterinarians and the general public.
Stress and Animal Welfare by Donald M. Broom,Ken G. Johnson Pdf
This is the Second Edition of a well-received book that reflects a fresh, integrated coverage of the concepts and scientific measurement of stress and welfare of animals including humans. This book explains the basic biological principles of coping with many forms of adversity. The major part of this work is devoted to explaining scientifically usable concepts in stress and welfare. A wide range of welfare indicators are highlighted in detail with examples being drawn from man and other species. The necessity for combining information from disciplines is emphasized with a one-health, one-welfare approach. This information forms the basis for a synthesis of new ideas. Among the issues covered are: - How brain and body systems regulate using feelings, physiological responses, behaviour and responses to pathology - Limits to adaptation - Assessing positive and negative welfare during both short-term and long-term situations - Ethical problems and suggested solutions A proper assessment of animal welfare is essential to take informed decisions about what is morally acceptable in terms of practice and in the development of a more effective legislation. This work encapsulates a very wide body of literature on scientific aspects of animal welfare and will thus prove a valuable asset for animal welfare scientists, psychologists, students and teachers of all forms of biology, behaviour, medicine, veterinary medicine and animal usage.
Innovations in Dryland Agriculture by Muhammad Farooq,Kadambot H.M. Siddique Pdf
This book is a ready reference on recent innovations in dryland agriculture and reinforces the understanding for its utilization to develop environmentally sustainable and profitable food production systems. It covers the basic concepts and history, components and elements, breeding and modelling efforts, and potential benefits, experiences, challenges and innovations relevant to agriculture in dryland areas around world.