Lab Quiz Questions Flashcards

1
Q

List the four compartments of the ruminant stomach

A

Rumen, reticulum, omasum, abomasum

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2
Q

The rumen lining is characterized by

A

Papillae

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3
Q

What function do the rumen and gizzard share

A

-Decrease particle size
-increase surface area

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4
Q

What are the functions of rumination

A

-Decrease particle size
-base creation

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5
Q

What is the purpose of mucus in the abomasum

A

Protect the abomasum from the high acidity stomach contents

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6
Q

What is the purpose of the esophageal groove?

A

To allow milk to bypass the still growing stomach chambers and go straight to the abomasum in young ruminants

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7
Q

Protein Quality is most important for…

A

Poultry

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8
Q

What extra protein source do ruminants have

A

The ability to digest non protein nitrogen in the form of microbial crude protein

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9
Q

In tract dissection what is the thin red structure that was large and tongue like in the pig

A

Spleen

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10
Q

AFB and DMB

A

as fed basis
dry matter basis

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11
Q

rations for what animal(s) are not calculated on an afb

A

ruminants

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12
Q

in forages, what increases with stage of maturity

A

fiber and lignin

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13
Q

in forages, what decreases with stage of maturity

A

crude protein, vitamin a, energy value

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14
Q

structural difference between legumes and grasses

A

legumes have one long tap root
grasses has a a network of shallow, fibrous roots

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15
Q

what ability do legumes have that grasses do not

A

nitrogen fixation

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16
Q

what three minerals are required by grasses to grow

A

nitrogen, phosphorous, potassium

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17
Q

limitation(s) to growing alfalfa

A

requires sandy soil

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18
Q

minimum DM in baled hay

19
Q

risks of baling hay that is too wet

A

spontaneous combustion
mold

20
Q

CP of good quality grass hay

21
Q

plant structure with highest CP

22
Q

4 steps of making hay

A

mow: chop down
ted: spread out to dry
rake: collect into rows
bale: collect into bales

23
Q

pro and con of horizontal silo

A

pro: easier to fill
con: needs to be packed

24
Q

pro and con of vertical silo

A

pro: self packing
con: hard to fill

25
three materials to cover horizontal silo
airtight plastic durable plastic tires
26
what is consumed during fermentation
O2
27
what is produced during fermentation
CO2 heat VFAs
28
what nutrients are lost in seepage
anything water soluble B vitmins, starch, proteins
29
what acids are present in good quality silage
lactic acetic
30
DM of corn silage
35%
31
DM of haylage
40-60%
32
what process is done to corn to increase digestibility
kernel processing
33
what part of the corn plant holds the most starch
the seed/kernel
34
what would be the major effect of low quality corn silage on a lactating dairy cow
lowered production (sign of sub clinical ketosis)
35
corn should be ____ high by fourth of july
knee
36
energy content of cereal grains
high
37
EAA content of cereal grains
low
38
what structure of grains contains the majority of the fiber content
hull
39
hybrid cross of wheat and rye
triticale
40
corn like plant with high levels of prussic acid in vegetative state
rye
41
high palatable grain, easily removable hull, commonly fed to horses
oats
42
black triangular seed and good scratch feed for gizzard grit
buckwheat
43
what structure limits digestion of phosphorous in non ruminants
P bound in phytic acid rumen microbes able to break it down
44