nutrition quiz Flashcards

1
Q

what are advantages of ruminants

A

forage utilization, nonprotein N utilization, vitamin synthesis

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2
Q

what are disadvantages of ruminants

A

excess gas production, inefficient N utilization, digestive problesm

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3
Q

what can be useful for ruminants

A

heat of fermentation

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4
Q

basic classes of nutrients

A

water
carbs
fats
minerals
vitamins

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5
Q

basics needs of animals

A

water
energy
protein
minerals
vitamins

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6
Q

what are nutrients used for

A

maintenance and production

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7
Q

explain the need for water

A

given ad lib
clean water improves performance

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8
Q

describe the need for energy

A

most limiting nutrient
given in concentrates and roughages
TND and net energy

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9
Q

what does energy change for

A

body weight
milk production
breed
weather
age
pregnancy
body condition

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10
Q

what are the 3 types of protein

A

crude
degradable intake
ungradable intake

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11
Q

what does protein change for

A

body weight
milk production
growth
pregnancy

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12
Q

what are the macro minerals

A

calcium
phosphorus
magnesium
salt (NaCl)
potassium
sulfur

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13
Q

what’re the trace minerals

A

copper
zinc
manganese
cobalt
iodine
iron
selenium

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14
Q

where is calcium found

A

roughages

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15
Q

when is phosphorus found

A

during the harvest season

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16
Q

when is salt needed

A

it is craved

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17
Q

when is magnesium found

A

summer

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18
Q

what’re the fat soluble vitamins

A

A
D
E
K

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19
Q

where does vitamin A come from

A

carotenes from growing plants

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20
Q

how much vitamin A is stored in the liver

A

2-4 months worth

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21
Q

what are the water soluble vitamins

A

B

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22
Q

explain grain analysis

A

collect samples various times while unloading with a grain prob

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23
Q

explain hay analysis

A

coring tools cut into 10+ bales/field

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24
Q

explain silage analysis

A

occurs after ensiling

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25
describe dry matter
animals eat to meet requirements of nutriton
26
describe protein
measures heat damage (carbon basis)
27
describe energy
multiple sources
28
describe mycotoxins
found in moldy grain
29
describe ADF
largely indigestible and inversely related to energy
30
describe NDF
primarily cell wall inversley related to intake
31
what is relative feed value
ADF and NDF used mostly for alfalfa
32
what is NIR
focuses on one species, forage, or grain cheap
33
what is wet chemistry
mixed forages or rations expensive
34
what are advantages of natural grass
evolved under grazing incluses perennials, shrubs, trees and some legumes
35
what are disadvantages of natural grass
short season low nutritional value not tolerant of grazing decreased soil fertility
36
what are benefits of planted grass
selected for grazing bermuda is best
37
what is multispecies grazing
increases stocking rate by 10-20% improves pasture mix
38
what are supplements used for
improves animal performance and facilitates handling
39
what does supplements depend on
depends on availability, supply, and requirements
40
what is hay
respiration leaf shatter leaching overcured first cutting
41
what is used to help feeding loss
ring cradle ground
42
define bale grazing
hay is set out for winter months for controlled grazing
43
describe energy supplements
most limited ration composition depends on level sources: corn, sorghum, barley, oats, wheat
44
what are some main energy sources
cottonseed brewers grain distillers grain
45
what're the three types of protein
low bypass medium bypass high bypass (either low and high, or just medium)
46
what are the basic approaches to giving minerals
supply all traces supply half the traces test to find what is missing
47
where is vitamin A found
leafy green hay protein supplement or injection liver
48
what considerations must be made for feeding
consistency availability handlings minerals and vitamins
49
what are the 4 compositions
laboratory analysis feed analysis tables energy protein
50
what are the supplement delivery types
hand feeding grazing limited intake palatability hardness high quality forages
51
what is colostrum
first milk containing immunoglobulins and energy
52
what is creep feeding
an enclosed feeding trough only the calves can reach contains a high fiber diet to help them get used to eating grass
53
what are advantages of creep feeding
increased weaning weight increased sell price useful for skeletal framed calves decreased weaning stress useful for droughts
54
what are disadvantages of creep feeding
does not usually cover the cost may be converted not good for replacement heifers no major weight difference decreased price for fleshy cattle
55
what do stockers do
increase illness risk feed recommended rations offer feed before water 1.5 lb gain/day
56
what do feed lots depend on
age, weight, and sex cost of available feeds grown vs. purchased feeds different diet groups length of feeding time
57
how do feedlots feed
100% roughage - 100% concentrate
58
classes of implants
low or medium potency estrogen androgen combination low or high potency
59
where are implants located
the middle 1/3 of ear
60
what do implants cause
reduced marbling by 28 points choice or higher by 10 points
61
what are the 5 main types of feed additives
antibiotics ionophores coccidiosis MGA beta-agonists