The Mineral Nutrition Of Livestock

This book is an up to date reference work covering all aspects of macro and trace element nutrition in farm livestock. Sufficient information is given on metabolism, functions and interactions to explain why needs, feeds and imbalances are not always easy to define or anticipate. The major emphasis is on the mineral nutrition of ruminant livestock since they are most likely to be affected by imbalances but where pigs and poultry are the more vulnerable, extensive coverage of the non-ruminant is given. This new edition of a highly successful text has been thoroughly revised and significantly expanded. Many chapters have been extensively updated and several chapters on new topics introduced. * Calcium, phosphorus, sodium and potassium are now treated separately * Over 40 new figures are presented, and extensive use made oftables to summarise important data * Chapters on trace elements have been drastically revised * Claims for enhanced availability for new chelated sources arecritically reviewed * Completely new chapters focus on: The unique need of the ruminant for elemental sulphur Occasionally beneficial elements and essentially toxic elements The improved conduct and interpretation of supplementation trials

Mineral Nutrition of Animals reviews the research on the mineral nutrition of animals. This book explores the biological function and metabolism of minerals in the body, as well as mineral feeding of various species of farm animals. Topics range from water metabolism and mineral composition of feeds to the physiological role of macroelements such as calcium and potassium and microelements such as iron and copper. This text is comprised of 16 chapters; the first of which provides a historical overview of the science of mineral feeding of animals; mineral elements and their function in animal nutrition; and mineral feeding of animals under industrial conditions. The chapters that follow present general information on minerals, describe the link between biogeochemical regions and biochemical ecology, and analyze the factors affecting the mineral composition of animals' bodies. The reader is also introduced to water metabolism and the water requirements of animals; the metabolism of minerals absorbed into the digestive tract; and the kinetics of mineral metabolism in the blood, organs, and tissues. The next section is devoted to mineral feeding of various species of farm animals such as cattle, sheep, pigs, and poultry. This text concludes by looking at methods of controlling the adequacy of farm animals' mineral diet. This book will be of interest to students and practitioners in agriculture and food science.

The fifth edition of this important book reviews recent advances in livestock mineral nutrition, updated throughout with new references that reflect the growing complexity of mineral metabolism. Major related themes covered include the assessment of the 'mineral value' of feeds, the false hopes placed on organic mineral supplements and limiting the 'mineral footprint' of livestock production to lower environmental pollution. Following a clear and easy to reference structure, the book also considers potential pitfalls, such as misleading estimates of mineral requirements for growth, and misinterpretation of genomic markers for mineral requirements and bioavailability of supplements. An essential resource for researchers and students in animal nutrition, agriculture and veterinary medicine, this book also forms a useful reference for veterinary practitioners and those concerned with human nutrition and environmental protection.

This new edition of a highly successful text, published in its second edition in 1981, adheres to the framework laid down by the late Professor Underwood, but has been thoroughly revised by Dr. Neville Suttle. It begins with three chapters of general introduction on the physiological need for minerals, dietary sources of minerals and the principles governing detection of deficiencies. Several advances in the assessment of mineral availability are described and claims for enhanced availability for new chelated sources critically reviewed. The chapter on detection includes new physiological and biochemical definitions of the marginal band between a deficient and normal mineral status to improve the precision of diagnoses. In bringing the chapters on macro-minerals up-to-date, calcium and phosphorus are treated separately to acknowledge their distinctive metabolism outside the skeleton and new treatments, such as the use of acid diets for milk-fever, are described. The contrasting features of phosphorus and magnesium nutrition in the ruminant and non-ruminant are drawn out and the unique need of the ruminant for elemental sulphur is stressed in a new chapter. With trace elements, a few chapters (e.g. iron and manganese) show relatively little change from the second edition while others have changed drastically: for example, the identification of new seleno-proteins with hitherto unknown functions and a new interaction (with iodine) necessitate a major revision of the selenium chapter. A new chapter has been introduced to cover the newer essential trace elements, notably chromium. Coverage of toxic elements has been extended to include common dietary poisons such as arsenic and lead as well as fluorine. The edition concludes with a new chapter on the improved conduct and interpretation of supplementation trials which reflects their important role in differential diagnosis. Easy reference appendix tables summarize essential information in feed composition, dietary requirements and criteria of mineral status in livestock. The book will continue to represent a concise text on this important topic for advanced students of animal science.

This comprehensive textbook and reference manual presents concise, up-to-date information on mineral nutrition for livestock and poultry, as well as comparative aspects with laboratory animals and humans. Chapters are organized by established and most common minerals, and present information on each mineral's history, properties, distribution, and natural sources, as well as their requirements, metabolism, functions, deficiencies, supplementation methods, and toxicity for various animals. Those minerals for which naturally occurring deficiencies or excesses are known to be of economic importance are emphasized. A unique feature of this book is the description of the practical implications of mineral deficiencies and excesses, and of the conditions that might result. A large number of classic photographs illustrate mineral deficiencies and toxicities in farm livestock, laboratory animals and humans. Furthermore, it places strong emphasis on mineral supplementation in each chapter, and devotes an entire chapter to this subject.

This practical book provides crucial information necessary to formulate diets with appropriate amounts of amino acids, minerals, and vitamins. The factors that influence how well animals obtain these critical nutrients and methods for determining bioavailability are reviewed in this comprehensive text. In addition, data from both ruminants and nonruminants are included as well as established estimates of bioavailability for particular feed stuffs and feed supplements.