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Nutrition Final
Animal Nutrition 220, Cal Poly, Daughtery. Final Exam
| Question | Answer |
|---|---|
| The body recycles ____ very efficiently. | Fe |
| Fermented beverages contain the essential trace element, ________. | Chromium |
| What are the functions of Mn? | -Enzyme co-factor for many enzymes involved in CHO, fat, and protein metabolism. E.g. Enzyme co factor in ATP formation. -Essential for normal bone formation as a structural component of bone crystals. Involved in formation of collagen, elastin. |
| What is the Ca:P ration in the diet for monogastrics and ruminants? | Ruminants: 1:1 to 7:1 if the minimum P requirement is met. Monogastrics: 1:1 - 2:1. Optimum ration is 1.4:1 |
| Why is the dietary Ca:P ratio important? What happens if the ration is imbalanced? | An excess of Ca or P interferes with the absorption of the other from GIT, which may cause deficiency. |
| Where is iodine stored in the body? | Thyroid gland |
| How is Cl involved in protein digestion? | It is a component of HCl in gastric juice, which is involved in protein digestion. |
| Is cobalt a dietary requirement for both ruminants and monogastrics? Explain | Ruminants only. Monogastrics no. Cobalt is required by microbes to synthesize VB12, and since microbes are only in the ruminant gut... |
| What are the four fat soluble vitamins? | Vitamin: A, K, E, D DAKE |
| List the three vitamins that can be absorbed (least to a limited degree) from the LI? | Biotin Vitamin K Thiamin |
| Niacin can be synthesized in the animal from the amino acid _____. | Tryptophan |
| What are high dietary sources of Vitamin A or carotene? | Green plants. Liver Fish liver oil Synthetic (injectable, dry supplement) |
| What are high dietary sources of Vit D3? What are other sources of Vit D? | Liver or oils extracted from liver Vitamin premixes Other: Synthesis in skin from cholesterol with energy supplied by UV light. |
| What are dietary sources of Vit C? | Citrus fruits, tomatoes, green peppers, green (leafy) vegetables |
| What are dietary sources of Thiamin? | Fermented byproduct feeds (FBF) - yeast, wine grape solids, distillers grain Whole grain cereal (germ and seed coat) |
| What are good dietary sources of C, P, and both C and P? | C: Ground limestone or oyster shells P: Sodium phosphate, sodium tripolyphosphate C & P: Dicalcium phosphate, bone meal |
| Vitamin A can be synthesized in the body from what precursor contained in plants? | Carotene |
| Microbes synthesize which fat soluble vitamin? | Vitamin K |
| What are the toxicity signs of selenium? | Chronic: Alkali disease (sloughed or deformed hooves, hair and weight loss, stiff joints, liver necrosis, heart atrophy) Acute: "Blind staggers" (blindness, abdominal pain, respiratory failure, sudden death, excess salivation, teeth grinding) |
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