Nutrition

Question 1

Nutrient

Answer 1

any feed constituent that functions in the support of life

Question 2

function of nutrient (3)

Answer 2

provides energy, synthesizes tissues, supports metabolism

Question 3

essential nutrient

Answer 3

substance that must be obtained in diet

Question 4

why do essential nutrients need to be obtained?

Answer 4

animals body can’t make adequate amounts to survive

Question 5

nonessential nutrient

Answer 5

one that body can produce sufficiently if lacking in diet (ex. vitamin c)

Question 6

water function (5)

Answer 6

transports nutrients to and from cells, eliminate waste, heat dissipation, proper fluid and ion balance, nutrient digestion and absorption

Question 7

carbohydrates

Answer 7

contain CHO and classified based on complexity of chemical structure (sugars, starches, fibers, cellulose)

Question 8

what’s a major source of calories in livestock? (4 cal. per g)

Answer 8

carbs

Question 9

what carbohydrate is essential for herbivores?

Answer 9

fibers

Question 10

lipids

Answer 10

contain CHO, provides essential fatty acids

Question 11

saturated fat

Answer 11

solid at room temp

Question 12

unsaturated fat

Answer 12

liquid at room temp

Question 13

protein

Answer 13

polypeptides of high molecular weight, contain CHON, building block for growth, milk production, cellular and tissue repair, and enzyme production “expensive urine”

Question 14

how much protein do we feed

Answer 14

feed what is needed, excess not stored

Question 15

macrominerals

Answer 15

inorganic (no carbon)

Question 16

Needed in a 2:1 ratio

Answer 16

Ca:P

Question 17

grass tentany

Answer 17

deficiency of mg

Question 18

microminerals

Answer 18

required in smaller amounts

Question 19

copper deficiency

Answer 19

may cause reddish hair, low production and performance

Question 20

white muscle disease

Answer 20

deficiency of selenium, stiffing and calcification of muscles

Question 21

prevent mineral deficiency by

Answer 21

providing mineral in loose or block form

Question 22

vitamins

Answer 22

organic, needed in small amounts

Question 23

fat soluble vitamins (4)

Answer 23

ADEK

Question 24

water soluble vitamins

Answer 24

C and B-complex

Question 25

deficiency

Answer 25

too little

Question 26

toxicity

Answer 26

too much

Question 27

proximate analysis

Answer 27

separates feed components into groups according to feeding value

Question 28

energy need

Answer 28

capacity to work

Question 29

system to evaluate feedstuffs for energy content

Answer 29

total digestible nutrients (TDN)

Question 30

replacement of TDN

Answer 30

net energy (NE), more precise energy measurement