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ANSC 326 - Non Ruminant Nutrition > Vitamins > Flashcards

Vitamins Flashcards

1
Q

What is precursor of Vitamin A?

A

carotene

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2
Q

Deficiency signs of Vitamin A

A
  1. night blindness (not enough rhodopsin)
  2. bulging eyes
  3. anorexia
  4. keratinization of respiratory epithelial
  5. drowsiness
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3
Q

How is vitamin D synthesized?

A

Cholesterol -(sun)->
cholecalciferol –>
1,25 dihydroxycholecaliferol

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4
Q

What are precusors of vitamin D in the diet?

A

ergocalciferol (plant)
calciferol (animal)

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5
Q

What does vitamin D do?

A

stimulate Ca and P absorption/resorption

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6
Q

Deficiency signs of Vitamin D

A

rickets or osteomalacia

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7
Q

What does vitamin E do?

A

functions as a powerful antioxidant

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8
Q

Active form of Vitamin E

A

alpha-tocopherol

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9
Q

Deficiency signs of Vitamin E

A

1.muscular lesion
2. reproductive failure
3. cell permeability
4. liver necrosis
5. Birds have encephalomalacia and exudative diathesis

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10
Q

Deficiency signs of vitamin K

A
  1. increased blood clotting times
  2. hemorrhaging
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11
Q

What does thiamin do?

A

involved in TCA cycle decarboxylation

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12
Q

Deficiency signs of thiamin?

A
  1. bradycardia
  2. disruption of carbohydrate and lipid metabolism
  3. enlarged adrenal gland
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13
Q

Deficiency sign of riboflavin?

A
  1. reduced average daily gain
  2. adrenal hemorrhaging
  3. kidney damage
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14
Q

Deficiency sign of niacin?

A
  1. decreased appetite
  2. diarrhea
  3. vomiting
  4. black tongue (dogs)
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15
Q

What does pantothenic acid do?

A

functions as a component of Coenzyme A, which is involved in fatty acid metabolism

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16
Q

Deficiency sign of pantothenic acid?

A
  1. dermatitis (birds)
  2. goose stepping (pigs)
17
Q

How is B6 added to diets?

A

pyidoxine, pyridoxal, and pyridoxamine

18
Q

Deficiency sign of B6?

A
  1. demyelination of peripheral nerves
  2. immunosuppression
  3. seizures
19
Q

Source of B12?

A

bacteria

20
Q

Deficiency signs of B12

A
  1. kidney and liver damage
  2. high abortion rates
  3. poor feathering
21
Q

Deficiency signs of biotin?

A
  1. Skin lesions
  2. dermatitis
  3. alopecia
  4. hind leg spasms
  5. cracked hooves
22
Q

What is vitamin C called?

A

ascorbic acid

23
Q

Deficiency signs of vitamin C

A
  1. weight loss
  2. edema
  3. diarrhea

ANSC 326 - Non Ruminant Nutrition (14 decks)

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