Week 1
Nutrients |
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Vitamins
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Text Transcript
Time: 3.51
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- Chemical composition: organic compounds; unrelated
- Classifications
- Water soluble
- Table 2.4 – Water soluble vitamins
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Table 2.4 - Water Soluble Vitamin
| Thiamin (B1) |
| Riboflavin (B2) |
| Pyridoxine (B6) |
| Cyanocobalamin (B12) |
| Pantothenic acid |
| Nicotinic acid (Niacin) |
| Folic acid |
| Biotin |
| Choline |
| Inositol |
| Paraaminobenzoic acid (PABA) |
| Vitamin C (Ascorbic acid) |
- As a group, primarily function as enzyme cofactors
- Fat soluble
- Table 2.5 – Fat soluble vitamins and primary function(s) of
each
Table 2.5 - Fat Soluble Vitamins and Functions
Fat
Soluble Vitamin |
Function |
Vitamin
A |
Vision and maintenance of epithelial
cells |
Vitamin
D |
Ca and P absorption, storage, and metabolism
|
Vitamin
E |
Metabolic antioxidant |
Vitamin
K |
Blood clotting |
- Absorption
- Small intestine
- Factors influencing absorption efficiency
- All vitamins - production site
- Fat soluble vitamins – dietary lipids and bile
- Sources
- Animal tissues
- Microorganisms
- Diet
- Consequences of solubility
- Supplementation frequency
- Deficiency and toxicity potential
- Requirements
- Small amounts
- Vary between and within species
- Monogastrics – require majority of water and fat soluble
- Herbivorous monogastrics and ruminants – require majority of fat
soluble
- Vitamins of concern by species
- Poultry – require all vitamins except ascorbic acid, inositol,
and PABA
- Swine – require riboflavin, niacin, pantothenic acid, cyanocobalamine,
and vitamins A, D, and E
- Horses – require vitamins A, D, and E
- Ruminants – require vitamin A and possibly E and/or D
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