Vitamin D Flashcards
1
Q
Vitamin D is considered __________ and ________.
A
- Antichiritic Factor
- Hormone
2
Q
Chicken Vitamin D deficiency (3)
A
- Thin shells
- Decrease egg production
- Decrease hatchability
3
Q
Lowers blood Ca levels
A
Calcitonin
4
Q
Raises blood Ca levels
A
PTH
5
Q
What is 7-dehydrocholesterol?
A
Vitamin D3
6
Q
What is ergosterol?
A
Vitamin D2
7
Q
Hydroxylation of Vitamin D takes place in…
A
Liver and kidney
8
Q
Is Vitamin D fat or water soluble?
A
Fat
9
Q
Vitamin D is considered the “____” vitamin
A
Sunshine
10
Q
Is Vitamin D a practical toxicity problem?
A
YES
11
Q
Ergocalciferol vs. Cholecalciferol (Vitamin D2 or Vitamin D3)
A
Vit. D2 - Ergocalciferol
Vit. D3 - Cholecalciferol
12
Q
Which is best for chicks? Vit. D2 or D3?
A
Vitamin D3
13
Q
Vitamin D is postively affected by…
A
UV Light
14
Q
What animals need higher requirements of Vitamin D?
A
Young and lactating
Swine and poultry
Wide Ca and P ratios
