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Biology of Animal Production 1 > Sheep > Flashcards

Sheep Flashcards

1
Q

Flock

A

Group of Sheep

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2
Q

Ewe

A

female sheep

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3
Q

Ram

A

intact male

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4
Q

Wether

A

castrated male

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5
Q

Sire

A

paternal contributor to DNA

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6
Q

Dam

A

maternal contributor to DNA

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7
Q

Parturition

A

act of giving birth

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8
Q

Parity

A

number of times given birth

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9
Q

Lamb

A

baby sheep (less than 1 year)

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10
Q

Lambing

A

sheep giving birth

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11
Q

lamb (meat)

A

meat from sheep less than 1 year of age

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12
Q

Mutton

A

meat from sheep over 1 year of age

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13
Q

Channel

A

wooless section on muzzle

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14
Q

Lanolin

A

oil produced to protect wool

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15
Q

Sheep Products

A

wool, meat, milk, pelt/hide/leather

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16
Q

Open Face

A

wool stops behind ears

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17
Q

Closed Face

A

wool grows over head and on side of face

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18
Q

Bare Legged

A

wool does NOT grow on legs
–> less dense wool

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19
Q

Leg Wool

A

Wool down the legs
–> wool more dense

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20
Q

Polled

A

animal naturally does not have horns

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21
Q

Horned

A

the sheep has horns

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22
Q

Wool Breed

A

typically used for their wool
–>can be used for meat

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23
Q

Fine Wool Breeds

A

-Rambouillet
-Merino

24
Q

Medium Wool Breeds

A

-Oxford
-Columbia

25
Coarse/Long Wool Breeds
-Border Leicester -Lincoln -Cotswold
26
Meat Breeds
-Sufflock -Hampshire -Southdown -Dorset -Cheviot -Shropshire -Montedale
27
Hair Breeds
-Dorper -Katahdin
28
Open Face Breeds
-Sufflock -Border Leicester
29
Wool Legged Breed
-Ramboulliet -Hampshire
30
Horned Breed
-Merino -Dorset
31
Polled Breed
-Sufflock -Katahdin
32
Why does mutton have an "offensive flavor"?
As a sheep grows older, lanolin gets into their meat making it taste "musky" or "dirty"
33
Rule for Ground Meat
NEVER add lamb meat back into the ground meat product
34
Sheep Imports
Most sheep products are imported from Asia and Europe. -Australia imports 68-70% -New Zealand imports 30-32%
35
New Zealand Sheep Industry
-large number of similar sheep -uniform product
36
Farm Flock
-midwest -smaller (avg 30 ewes) -variety (3 breeds represented)
37
Range Flock
-western states - 100-1000 ewes -variety (match breed to living conditions) -dry climate -10,000+ acres
38
sexual maturity
5-12 months
39
gestation
138-149 days --> avg 147
40
Seasonal Breeders
short day -- photoperiod
41
pineal gland
converts serotonin to melatonin in the night hours --> melatonin into GnRH which promotes cycling
42
GnRH
gonaditropin releasing hormone
43
estrus
ovulation - 18-48 hours (avg 30 hours)
44
estrous
time between cycles - 13-19 days (avg 17 days)
45
Marking Harness
-mark ewes -track rams --> uses for records
46
flehmen response
a lip curl by rams (vomeronasal organ) to determine if a ewe is receptive to breeding
47
dystocia
difficulty giving birth --> sign= front feet followed by nose is not seen
48
lambing jug
small clean space that allows for bonding
49
Nursing: tail wagging
means a lamb is getting milk
50
#1 cause of death in lambs
starvation
51
postnatal care
-CDT vaccinations -tail docking -castration --> may need to bottle or creep feed
52
Shearing
1-2 times per year
53
Finishing
muscle growth and optimal fat cover for slaughter
54
Predator Control
-physical barriers -human presence -fencing -guardian animals
55
Parasite Control: recognize problem
-loose stool -wool tags -weight loss
56
Parasite Control: When
deworm twice a year --> prior to grazing --> prior to lambing
57
Parasite Control: Management
-Drench -Injectable -Bath

Biology of Animal Production 1 (16 decks)

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