Mitigation of Greenhouse Gas Emissions in Livestock Production

Mitigation of Greenhouse Gas Emissions in Livestock Production PDF Author: Pierre J. Gerber
Publisher: Food & Agriculture Organization of the UN (FAO)
ISBN:
Category : Nature
Languages : en
Pages : 240

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Book Description
The current analysis was conducted to evaluate the potential of nutritional, manure and animal husbandry practices for mitigating methane (CH4) and nitrous oxide (N2O) - i.e. non-carbon dioxide (CO2) - GHG emissions from livestock production. These practices were categorized into enteric CH4, manure management and animal husbandry mitigation practices. Emphasis was placed on enteric CH4 mitigation practices for ruminant animals (only in vivo studies were considered) and manure mitigation practices for both ruminant and monogastric species. Over 900 references were reviewed; simulation and life cycle assessment analyses were generally excluded

Mitigation of Greenhouse Gas Emissions in Livestock Production

Mitigation of Greenhouse Gas Emissions in Livestock Production PDF Author: Pierre J. Gerber
Publisher: Food & Agriculture Organization of the UN (FAO)
ISBN:
Category : Nature
Languages : en
Pages : 240

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Book Description
The current analysis was conducted to evaluate the potential of nutritional, manure and animal husbandry practices for mitigating methane (CH4) and nitrous oxide (N2O) - i.e. non-carbon dioxide (CO2) - GHG emissions from livestock production. These practices were categorized into enteric CH4, manure management and animal husbandry mitigation practices. Emphasis was placed on enteric CH4 mitigation practices for ruminant animals (only in vivo studies were considered) and manure mitigation practices for both ruminant and monogastric species. Over 900 references were reviewed; simulation and life cycle assessment analyses were generally excluded

Another Revolution in U.S. Farming?

Another Revolution in U.S. Farming? PDF Author: Lyle P. Schertz
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 464

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Book Description


Metabolic Modifiers

Metabolic Modifiers PDF Author: National Research Council
Publisher: National Academies
ISBN: 0309049970
Category : Technology & Engineering
Languages : en
Pages : 94

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Book Description
In the past decade, animal scientists have learned that administering recombinantly derived somatotropin (growth hormone) to cows improves milk production and that giving beta-adrenergic agonists to meat animals improves productivity and leanness. In order for these metabolic modifiers to yield benefits, however, sound management of the animals' nutrition is necessary. This volume reports on how these substances work in the animals' metabolism, what effects they might have on nutrient requirements of domestic livestock, and what information should be developed further by investigators. The book explores the current understanding of the biology, structure, mechanisms of action, and treatment effects of somatotropin, beta-adrenergic agonists, and anabolic steroids. A companion volume to the Nutrient Requirements of Domestic Animals series, this authoritative volume will be required reading for animal scientists, researchers, veterinarians, livestock farmers, and faculty and students in university animal veterinary science programs.

Creatures of Empire

Creatures of Empire PDF Author: Virginia DeJohn Anderson
Publisher: Oxford University Press
ISBN: 0199839727
Category : History
Languages : en
Pages : 493

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Book Description
When we think of the key figures of early American history, we think of explorers, or pilgrims, or Native Americans--not cattle, or goats, or swine. But as Virginia DeJohn Anderson reveals in this brilliantly original account of colonists in New England and the Chesapeake region, livestock played a vitally important role in the settling of the New World. Livestock, Anderson writes, were a central factor in the cultural clash between colonists and Indians as well as a driving force in the expansion west. By bringing livestock across the Atlantic, colonists believed that they provided the means to realize America's potential. It was thought that if the Native Americans learned to keep livestock as well, they would be that much closer to assimilating the colonists' culture, especially their Christian faith. But colonists failed to anticipate the problems that would arise as Indians began encountering free-ranging livestock at almost every turn, often trespassing in their cornfields. Moreover, when growing populations and an expansive style of husbandry required far more space than they had expected, colonists could see no alternative but to appropriate Indian land. This created tensions that reached the boiling point with King Philip's War and Bacon's Rebellion. And it established a pattern that would repeat time and again over the next two centuries. A stunning account that presents our history in a truly new light, Creatures of Empire restores a vital element of our past, illuminating one of the great forces of colonization and the expansion westward.

Edible Insects

Edible Insects PDF Author: Arnold van Huis
Publisher: Bright Sparks
ISBN: 9789251075951
Category : Conservation of natural resources
Languages : en
Pages : 0

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Book Description
Edible insects have always been a part of human diets, but in some societies there remains a degree of disdain and disgust for their consumption. Although the majority of consumed insects are gathered in forest habitats, mass-rearing systems are being developed in many countries. Insects offer a significant opportunity to merge traditional knowledge and modern science to improve human food security worldwide. This publication describes the contribution of insects to food security and examines future prospects for raising insects at a commercial scale to improve food and feed production, diversify diets, and support livelihoods in both developing and developed countries. It shows the many traditional and potential new uses of insects for direct human consumption and the opportunities for and constraints to farming them for food and feed. It examines the body of research on issues such as insect nutrition and food safety, the use of insects as animal feed, and the processing and preservation of insects and their products. It highlights the need to develop a regulatory framework to govern the use of insects for food security. And it presents case studies and examples from around the world. Edible insects are a promising alternative to the conventional production of meat, either for direct human consumption or for indirect use as feedstock. To fully realise this potential, much work needs to be done by a wide range of stakeholders. This publication will boost awareness of the many valuable roles that insects play in sustaining nature and human life, and it will stimulate debate on the expansion of the use of insects as food and feed.

Nutrient Requirements of Laboratory Animals,

Nutrient Requirements of Laboratory Animals, PDF Author: National Research Council
Publisher: National Academies Press
ISBN: 0309051266
Category : Science
Languages : en
Pages : 188

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Book Description
In the years since the third edition of this indispensable reference was published, a great deal has been learned about the nutritional requirements of common laboratory species: rat, mouse, guinea pig, hamster, gerbil, and vole. The Fourth Revised Edition presents the current expert understanding of the lipid, carbohydrate, protein, mineral, vitamin, and other nutritional needs of these animals. The extensive use of tables provides easy access to a wealth of comprehensive data and resource information. The volume also provides an expanded background discussion of general dietary considerations. In addition to a more user-friendly organization, new features in this edition include: A significantly expanded section on dietary requirements for rats, reporting substantial new findings. A new section on nutrients that are not required but that may produce beneficial results. New information on growth and reproductive performance among the most commonly used strains of rats and mice and on several hamster species. An expanded discussion of diet formulation and preparationâ€"including sample diets of both purified and natural ingredients. New information on mineral deficiency and toxicity, including warning signs. This authoritative resource will be important to researchers, laboratory technicians, and manufacturers of laboratory animal feed.

Medical Books and Serials in Print, 1979

Medical Books and Serials in Print, 1979 PDF Author: R. R. Bowker LLC
Publisher: R. R. Bowker
ISBN:
Category : Medical
Languages : en
Pages : 1536

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Book Description


California Range Brushlands and Browse Plants

California Range Brushlands and Browse Plants PDF Author: Arthur William Sampson
Publisher: University of California, Agriculture and Natural Resources
ISBN: 9780931876547
Category : Nature
Languages : en
Pages : 176

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Book Description


Medical and Veterinary Entomology

Medical and Veterinary Entomology PDF Author: Gary R. Mullen
Publisher: Academic Press
ISBN: 0080919693
Category : Science
Languages : en
Pages : 646

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Book Description
Medical and Veterinary Entomology, Second Edition, has been fully updated and revised to provide the latest information on developments in entomology relating to public health and veterinary importance. Each chapter is structured with the student in mind, organized by the major headings of Taxonomy, Morphology, Life History, Behavior and Ecology, Public Health and Veterinary Importance, and Prevention and Control. This second edition includes separate chapters devoted to each of the taxonomic groups of insects and arachnids of medical or veterinary concern, including spiders, scorpions, mites, and ticks. Internationally recognized editors Mullen and Durden include extensive coverage of both medical and veterinary entomological importance. This book is designed for teaching and research faculty in medical and veterinary schools that provide a course in vector borne diseases and medical entomology; parasitologists, entomologists, and government scientists responsible for oversight and monitoring of insect vector borne diseases; and medical and veterinary school libraries and libraries at institutions with strong programs in entomology. Follows in the tradition of Herm's Medical and Veterinary Entomology The latest information on developments in entomology relating to public health and veterinary importance Two separate indexes for enhanced searchability: Taxonomic and Subject New to this edition: Three new chapters Morphological Adaptations of Parasitic Arthropods Forensic Entomology Molecular Tools in Medical and Veterinary Entomology 1700 word glossary Appendix of Arthropod-Related Viruses of Medical-Veterinary Importance Numerous new full-color images, illustrations and maps throughout

Energy Value of Foods

Energy Value of Foods PDF Author: Annabel Laura Merrill
Publisher:
ISBN:
Category : Food
Languages : en
Pages : 126

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Book Description