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Biology of Animal Production 1 > Sheep > Flashcards

Sheep Flashcards

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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
Q

Coarse/Long Wool Breeds

A

-Border Leicester
-Lincoln
-Cotswold

26
Q

Meat Breeds

A

-Sufflock
-Hampshire
-Southdown
-Dorset
-Cheviot
-Shropshire
-Montedale

27
Q

Hair Breeds

A

-Dorper
-Katahdin

28
Q

Open Face Breeds

A

-Sufflock
-Border Leicester

29
Q

Wool Legged Breed

A

-Ramboulliet
-Hampshire

30
Q

Horned Breed

A

-Merino
-Dorset

31
Q

Polled Breed

A

-Sufflock
-Katahdin

32
Q

Why does mutton have an “offensive flavor”?

A

As a sheep grows older, lanolin gets into their meat making it taste “musky” or “dirty”

33
Q

Rule for Ground Meat

A

NEVER add lamb meat back into the ground meat product

34
Q

Sheep Imports

A

Most sheep products are imported from Asia and Europe.
-Australia imports 68-70%
-New Zealand imports 30-32%

35
Q

New Zealand Sheep Industry

A

-large number of similar sheep
-uniform product

36
Q

Farm Flock

A

-midwest
-smaller (avg 30 ewes)
-variety (3 breeds represented)

37
Q

Range Flock

A

-western states
- 100-1000 ewes
-variety (match breed to living conditions)
-dry climate
-10,000+ acres

38
Q

sexual maturity

A

5-12 months

39
Q

gestation

A

138-149 days –> avg 147

40
Q

Seasonal Breeders

A

short day – photoperiod

41
Q

pineal gland

A

converts serotonin to melatonin in the night hours
–> melatonin into GnRH which promotes cycling

42
Q

GnRH

A

gonaditropin releasing hormone

43
Q

estrus

A

ovulation
- 18-48 hours (avg 30 hours)

44
Q

estrous

A

time between cycles
- 13-19 days (avg 17 days)

45
Q

Marking Harness

A

-mark ewes
-track rams
–> uses for records

46
Q

flehmen response

A

a lip curl by rams (vomeronasal organ) to determine if a ewe is receptive to breeding

47
Q

dystocia

A

difficulty giving birth
–> sign= front feet followed by nose is not seen

48
Q

lambing jug

A

small clean space that allows for bonding

49
Q

Nursing: tail wagging

A

means a lamb is getting milk

50
Q

1 cause of death in lambs

A

starvation

51
Q

postnatal care

A

-CDT vaccinations
-tail docking
-castration
–> may need to bottle or creep feed

52
Q

Shearing

A

1-2 times per year

53
Q

Finishing

A

muscle growth and optimal fat cover for slaughter

54
Q

Predator Control

A

-physical barriers
-human presence
-fencing
-guardian animals

55
Q

Parasite Control: recognize problem

A

-loose stool
-wool tags
-weight loss

56
Q

Parasite Control: When

A

deworm twice a year
–> prior to grazing
–> prior to lambing

57
Q

Parasite Control: Management

A

-Drench
-Injectable
-Bath

Biology of Animal Production 1 (16 decks)

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