Sheep Flashcards

1
Q

Define lamb

A

Immature male or female

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2
Q

Define ewe

A

Mature female

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3
Q

Yearling ewe

A

Immature female

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4
Q

Define Ewe lamb

A

Female lamb

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5
Q

Define ram

A

Intact male

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6
Q

Define wether

A

Castrated male

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7
Q

Define whether lamb

A

Castrated neonate

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8
Q

Define groomer

A

Vasectomized male

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9
Q

True or false

Sheep are very susceptible to respiratory infections

A

True

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10
Q

What is wool biting an indication of

A

Insufficient space

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11
Q

True or false

Full fleeced sheep need more room than sheared sheep

A

True

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12
Q

Sheep are very social animals, any isolation from their flock should be done in a manner

A

Where they can still see their flock or have mirrors to reduce stress

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13
Q

Why should all sheep have the ability to eat and drink at the same time

A

To prevent dominant sheep from preventing lower sheep from eating/drinking

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14
Q

What are some uses for sheep

A

Wool (clothing etc)
Meat
Milk
Medical research

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15
Q

When should shearing be done and how much should you leave behind

A

Annually

Leave behind 2-3 c/m of wool to protect from weather

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16
Q

In what ways are sheep used for medical research

A
Good models for human pregnancy
Fetal development
Effects of alcohol on fetal growth/retardation 
Cardiovascular system 
Valve and joint replacement
Facial recognition
17
Q

When are females classified as ewes

A

6-9 months of age when they are mature

18
Q

Describe the estrus cycles and breeding of a ewe

A

Seasonally polyestrus
Estrus cycles happen every 13-19 days and last 18-48 hours (average 30)

Can start breeding at 6-12 month of age

Gestation is 149 days

Typically birth from January to may

Litter sizes are 1-3 (triplets and twins more common than singletons)

Natural breeding often done in august to January (can also be with AI)

19
Q

Early lambing is more difficult but what does it help

A

Helps grow lambs that are big enough to be eaten at Easter (higher price)

20
Q

What is crutching

A

Done before lambing
When the areas around the vulva and udder are shaved to remove dirty wool and so the area can be monitored for swelling after parturition

21
Q

Ewes that are lambing or have lambs should have a separate area, these groups should not exceed __ sheep

A

12 sheep

Must have sufficient room for lambs and ewe to interact

22
Q

How long do ewes/lambs spend in separate stalls

A

12-48 hours but will increase with first time lambing and ewes with multiple lambs

23
Q

Lambs usually stay with their mothers for

A

2-4 months

24
Q

What are the 3 stages of birth

A

1: (1-4 hours) when contractions begin and ewe becomes restless. May separate from flock and urinate frequently
2: (1-3 hours) 95% of births occur in anterior “head diving” presentation with head and front legs appearing first
3: (2-3 hours or up to 6)

25
Q

When is assistance needed if there is not indication of the fetus

A

1 hour

26
Q

If the ewe shows no signs of toxemia or septicemia, then no treatment is necessary until ___ hours postpartum

A

12 hours

27
Q

What is the most crucial part of bonding in sheep

A

6-12 hours when the ewe licks the lamb

28
Q

What do vaccinations for sheep typically include

A

Tetanus
Pulpy kidney
Malignant edema

29
Q

How often should sheeps hooves be trimmed

A

Every 6-10 weeks to avoid pain and discomfort from excessive growth and prevent foot rot

30
Q

True or false

Dystocia is common in lambing

A

True

31
Q

What are lambs extremely susceptible to in the first 36 hours of life

A

Hypothermia

32
Q

How long should you observe umbilicus for infection in lambs? (Very susceptible to infection)

A

2 weeks