The mineral nutrition of livestock

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