• Front Matter R1-R10

• Introduction 1-2

• 1 Vitamin A 3-10

• 2 Vitamin D 11-22

• 3 Vitamin E 23-30

• 4 Vitamin K 31-35

• 5 Ascorbic Acid 36-42

• 6 Thiamin 43-46

• 7 Niacin 47-52

• 8 Riboflavin (Vitamin B2) 53-57

• 9 Vitamin B6 (Pyridoxine) 58-63

• 10 Folic Acid 64-66

• 11 Pantothenic Acid 67-69

• 12 Biotin 70-73

• 13 Vitamin B12 74-76

• 14 Choline 77-83

• 15 Research Needs 84-84

• Summary 85-86

• Appendix Table 87-92

• Index 93-96

" 12 Biotin ." Vitamin Tolerance of Animals . Washington, DC: The National Academies Press, 1987 .

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