Trace Minerals - Manganese and Zinc

Question 1

High concentrations of Mn occur in…

Answer 1

Bones, liver, kidney, pancreas and pituitary gland

Question 2

Functions of Manganese (6)

Answer 2

1. Sexual maturation
2. Enzyme cofactor
3. Component of Arginase
4. Essential for normal reproduction
5. Normal bone formation
6. Normal muscle function

Question 3

Female pigs show the following symptoms with sexual maturation (related to Mn)

Answer 3

1. Reduced skeletal growth
2. Irregular, estrus cycles
3. Fetal reabsorption or birth of small, weak pigs
4. Poor udder development and little if any milk

Question 4

What mineral is associated with the following reproductive problems?
Irregular, estrus cycles; fetal resorption or birth of small, weak pigs; poor udder development &
little if any milk

Answer 4

Manganese

Question 5

List the mineral that is involved in slipped tendon or perosis

Answer 5

Manganese

Question 6

Manganese is _____ absorbed and largely excreted in the feces

Answer 6

Poorly

Question 7

Zinc is present mainly in the ________ as skin, hair and wool with only traces in bone, muscle, and other organs

Answer 7

Epidermal tissues

Question 8

Whole blood - % in
Eurythrocytes
Plasma
Leucocytes

Answer 8

E- 75%
P - 22%
L - 3%

Question 9

All Zinc in eurythrocytes can be accounted for as a constituent of _____.

Answer 9

Carbonic anhydrase

Question 10

Absoprtion of Zinc occurs mainly in the _______

Answer 10

duodenum (excreted in feces)

Question 11

Zinc Deficiencies

Answer 11

1. Dermatitis - parakeratosis - in swine
2. Keratosis
3. Alopecia and retarded growth

Question 12

Dermatitis - parakeratosis

Answer 12

1. Specific skin lesions
2. Retarded growth
3. Lowered feed utilization
4. Alopecia - hair loss

Question 13

Keratinizing of the skin - includes changing from a soft pliable skin to a hard callous-like skin

Answer 13

Keratosis

Question 14

Which of the following could Zn not be bound to in order to create a chelated form of Zn?

Answer 14

Sulfate

Question 15

• a disorder of the outer layers of skin; skin can become flaky or hard and callous-like

Answer 15

Parakeratosis

Question 16

Mn: Commonly called “slipped tendon”; hock joint becomes swollen; tendon slips from its condyle

Answer 16

Perosis

Question 17

Deficiency more likely to cause skin problems

Answer 17

Zinc deficiency

Question 18

For most farm animals, ________ will prevent dermatitis (zinc requirements)

Answer 18

25-70 ppm

Question 19

ZINC - Generally need to supplement _____ diets and NOT _____ diets.

Answer 19

Supplement: Swine and Poultry
NOT: Ruminant