01 - vitamins

Question 1

1. which vitamins are not produced by the body?
2. which are?

Answer 1

1. ADE ***supplemented***
2. KBC

Question 2

(Vitamin A)

1. precursor?

converted to vit A where?

2. source?
3. Fx?
4. Def?
5. tox?

Answer 2

1. beta-carotene

intestines

2. fresh forage
3. vision (rhodopsin pigment)
4. night/perm blindness
5. rare - poss liver dmg

Question 3

(Vit D)

1. source?
2. Fx?
3. Def?
4. Tox?

Answer 3

1. skin (D3) or plants (ergosterol D2)
2. ^absorb of Ca & P, normal bone mineralization
3. rickets, osteomalacia
4. calcification of soft tissue (kidneys)

Question 4

(Vit E - alpha-tocopherol: active form)

1. source?
2. fx?
3. Def?
4. tox?

Answer 4

1. fresh forage, soybeans, cottonseed
2. antitox/immunity, repro
3. white musc dz, retained placenta
4. rare

Question 5

(Vit K)

1. source?
2. Fx?
3. def?
4. antagoism by what?

Answer 5

1. green plants, made by rumen bac
2. clotting factors
3. rare
4. modly sweet clover (dicoumarol)

Question 6

(Thiamine)

1. aka what?
2. fx?
3. def?

Answer 6

1. vit B1
2. brain/nerve fx (metab of NT)
3. polioencephalomalacia

Question 7

(Polioencephalomalacia)

1. lesion?
2. risks?
3. Cx?
4. ddx?
5. tx?

Answer 7

1. cerebrocortical
2. suddent diet change, stress, ^grain (acidic -> kills bugs), ^ sulfuer looks like this
3. staggering, twitching -> circling, cortical blindness (no menace), head pressing, death
4. meningoencephalitis, infections, rabies, vit A def, lead, sulfur
5. thiamine injection

Question 8

(Niacin - B3)

1. does what?

Answer 8

1. prevents mobilization of body fat to liver

Question 9

(Biotin)

1. fx?

Answer 9

1. hoof horn health