Vitamin Tolerance of Animals

Éditeur: National Academies Press
ISBN: 9780309037280
eISBN Pdf: 9780309595674
Lieu de publication: United States
Année de publication électronique: 1987
Mois : Janvier
Pages: 107
Langue: Anglais

Légende

Many feedstuffs and forages do not provide the dietary vitamins necessary for optimum growth and development, making supplementation necessary. This volume offers a practical, well-organized guide to safe levels of vitamin supplementation in all major domestic species, including poultry, cattle, sheep, and fishes. Fourteen essential vitamins are discussed with information on requirements in various species, deficiency symptoms, metabolism, indications of hypervitaminosis, and safe dosages.

Vitamin Tolerance of Animals
Copyright
Preface
Contents
Introduction
Vitamin A
- NUTRITIONAL ROLE
  - Dietary Requirements Of Various Species
  - Biochemical Functions
- FORMS OF THE VITAMIN
- ABSORPTION AND METABOLISM
- HYPERVITAMINOSIS
  - Concentrations In Tissues
- PRESUMED UPPER SAFE LEVELS
- SUMMARY
- REFERENCES
Vitamin D
- NUTRITIONAL ROLE
- FORMS OF THE VITAMIN
- ABSORPTION AND METABOLISM
- HYPERVITAMINOSIS
  - Clinical Signs
  - Soft Tissue Changes
  - Lesions That Are Not Associated With Hypercalcemia
  - Factors Affecting Toxicity
  - Concentrations in Milk and Liver
- PRESUMED UPPER SAFE LEVELS
- CONCLUSION
- SUMMARY
- REFERENCES
Vitamin E
- NUTRITIONAL ROLE
  - Dietary Requirements of Various Species
  - Biochemical Functions
- FORMS OF THE VITAMIN
- ABSORPTION AND METABOLISM
- HYPERVITAMINOSIS
- PRESUMED UPPER SAFE LEVELS
- SUMMARY
- REFERENCES
Vitamin K
- NUTRITIONAL ROLE
  - Dietary Requirements of Various Species
  - Biochemical Functions
- FORMS OF THE VITAMIN
- ABSORPTION AND METABOLISM
- HYPERVITAMINOSIS
- PRESUMED UPPER SAFE LEVELS
- SUMMARY
- REFERENCES
Ascorbic Acid
- NUTRITIONAL ROLE
  - Dietary Requirements of Various Species
  - Biochemical Functions
- FORMS OF THE VITAMIN
- ABSORPTION AND METABOLISM
- HYPERVITAMINOSIS
  - Concentrations in Tissues
- PRESUMED UPPER SAFE LEVELS
- SUMMARY
- REFERENCES
Thiamin
- NUTRITIONAL ROLE
  - Dietary Requirements of Various Species
  - Biochemical Functions
- FORMS OF THE VITAMIN
- ABSORPTION AND METABOLISM
- HYPERVITAMINOSIS
- PRESUMED UPPER SAFE LEVELS
- SUMMARY
- REFERENCES
Niacin
- NUTRITIONAL ROLE
  - Dietary Requirements of Various Species
  - Biochemical Functions
- FORMS OF THE VITAMIN
- ABSORPTION AND METABOLISM
- HYPERVITAMINOSIS
- PRESUMED UPPER SAFE LEVELS
- SUMMARY
- REFERENCES
Riboflavin (Vitamin B2)
- NUTRITIONAL ROLE
  - Dietary Requirements of Various Species
  - Biochemical Functions
- FORMS OF THE VITAMIN
- ABSORPTION AND METABOLISM
- HYPERVITAMINOSIS
- PRESUMED UPPER SAFE LEVELS
- SUMMARY
- REFERENCES
Vitamin B6 (Pyridoxine)
- NUTRITIONAL ROLE
  - Dietary Requirements of Various Species
  - Biochemical Functions
- FORMS OF THE VITAMIN
- ABSORPTION AND METABOLISM
- HYPERVITAMINOSIS
- PRESUMED UPPER SAFE LEVELS
- SUMMARY
- REFERENCES
Folic Acid
- NUTRITIONAL ROLE
  - Dietary Requirements of Various Species
  - Biochemical Functions
- FORMS OF THE VITAMIN
- ABSORPTION AND METABOLISM
- HYPERVITAMINOSIS
- PRESUMED UPPER SAFE LEVELS
- SUMMARY
- REFERENCES
Pantothenic Acid
- NUTRITIONAL ROLE
  - Dietary Requirements of Various Species
  - Biochemical Functions
- FORMS OF THE VITAMIN
- ABSORPTION AND METABOLISM
- HYPERVITAMINOSIS
- PRESUMED UPPER SAFE LEVELS
- SUMMARY
- REFERENCES
Biotin
- NUTRITIONAL ROLE
  - Dietary Requirements Of Various Species
  - Biochemical Functions
- ABSORPTION AND METABOLISM
- HYPERVITAMINOSIS
- PRESUMED UPPER SAFE LEVELS
- SUMMARY
- REFERENCES
Vitamin B12
- NUTRITIONAL ROLE
  - Dietary Requirements Of Various Species,
  - Biochemical Functions
- FORMS OF THE VITAMIN
- ABSORPTION AND METABOLISM.
- HYPERVITAMINOSIS
- PRESUMED UPPER SAFE LEVELS
- SUMMARY
- REFERENCES
Choline
- NUTRITIONAL ROLE
  - Dietary Requirements of Various Species
  - Biochemical Functions
- FORMS OF THE VITAMIN
- ABSORPTION AND METABOLISM
- HYPERVITAMINOSIS
- PRESUMED UPPER SAFE LEVELS
- SUMMARY
- REFERENCES
Research Needs
Summary
Appendix Table
Index

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Vitamin Tolerance of Animals

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