Answers
Question: What are minerals
Correct Answer: Naturally occurring inorganic solids
Question: Which minerals are macrominerals
Correct Answer: Calcium Phosphorus Potassium Sodium Chlorine Magnesium Sulfur
Question: Which minerals are microminerals
Correct Answer: Copper Iron Manganese Zinc Cobalt Iodine Selenium
Question: Which minerals are required in minute amounts and are almost never deficient
Correct Answer: Aluminum Boron Chromium Nickel Silicon Tin Vanadium
Question: Which minerals are required in minute amounts and can cause toxicity issues
Correct Answer: Arsenic Fluorine Molybdenum Barium Bromine Lithium Cadmium Lead
Question: Which minerals are not required and considered toxic
Correct Answer: Mercury
Question: What does having low blood calcium do
Correct Answer: Causes an increase in the parathyroid hormones
Question: What does an increase in parathyroid hormone do
Correct Answer: Increases bone calcium resorption and decreases calcium excretion. Also activates
vitamin D
Question: What does 125D (calcitriol) do
Correct Answer: Stimulates active calcium absorption in the gut and is important for bone remodeling
Question: What is parturient hypocalcemia (paresis)
Correct Answer: When the rate of gut calcium absorption can't keep up with the rapid transfer of calcium
into milk. Leads to impaired muscle and nerve function
Question: What are some issues that come from chronic dietary calcium deficiency
Correct Answer: Rickets Osteomalacia Big head disease (in horses) Osteoporosis
Question: What is the requirement for calcium
Correct Answer: 0.2-4% 4% for laying hens 0.8% for lactating cow
Question: Can excess calcium cause toxicity
Correct Answer: No but it will dilutes out energy and protein of feed
Question: What common feedstuff can calcium be found in
Correct Answer: Legume forages Limestone, dicalcium phosphate, steamed bone meal, oyster shells
Animal byproduct (meat and bonemeal and fishmeal)
, Question: What does phosphorus do
Correct Answer: Bone formation Energy metabolism Regulatory molecules (protein kinase and
phosphatases) Intracellular buffer
Question: What are some signs of phosphorus deficiency
Correct Answer: Rickets Osteomalacia Osteoporosis Pica Reduced fertility in cattle and sheep
Question: What is the requirement of phosphorus
Correct Answer: 0.15-0.5%
Question: What are some common feedstuffs can phosphorus can be found in
Correct Answer: Grains Forages Dicalcium/monosodium phosphate
Question: What are the functions of magnesium
Correct Answer: Enzyme cofactor Bone formation
Question: What are some deficiency signs of magnesium
Correct Answer: Grass tetany or staggers Decreased food intake and poor growth or production
Question: What are the requirements for magnesium
Correct Answer: Around 0.2%
Question: At what point does magnesium toxicity occur
Correct Answer: At around 0.4%
Question: Where can magnesium be found
Correct Answer: Dolomitic limestone (very high) Mg oxide and g sulfate
Question: What are the major electrolytes
Correct Answer: Na+ K+ Cl-
Question: What is the requirements for electrolytes
Correct Answer: Na: 0.1-0.2% K: 0.3-1% Cl: 0.1-0.25%
Question: What are signs of electrolyte deficiency
Correct Answer: Poor growth or production and feed efficiency Dehydration
Question: Where are electrolytes found in feedstuff
Correct Answer: K: Low in cereal grains, high in most Michigan forages Na, Cl: Salt
Question: What are the functions of sulfur
Correct Answer: Component of many organic compounds, and hence functions in protein, lipid and CHO
metabolism, connective tissue and blood clotting Minor role in acid-base balance
Question: What are signs of sulfur deficiency
Correct Answer: Depressed growth
Question: What are the requirements for sulfur
Correct Answer: 0.1-0.2% Toxic at 0.4-0.5%