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VMS 1001 > Sheep Husbandry Part 1 > Flashcards

Sheep Husbandry Part 1 Flashcards

1
Q

What age do lambs reach puberty?

A

8 months old

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2
Q

What is the gestation length of a sheep.

A

147 days

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3
Q

What is the average oestrus cycle

A

3 weeks, they usually have 2 cycles

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4
Q

What occurs in October

A

Pre breeding checks, purchase of replacements, ewe abortion vaccines and flushing of ewes, lambs are made in autumn not spring

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5
Q

What occurs in November?

A

Tupping, 25-100 ewes per ram, 5th nov to 1st April for lambing

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6
Q

What occurs in December

A

Rams are removed after 6-8 weeks with the ewes and 2 ewe cycles

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7
Q

What occurs in January

A

Scanning for pregnancy, presence and number of foetuses, sale of barren ewes

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8
Q

Why may sheep be separated

A

Separated based on body condition scores, so that they can flush appropriately

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9
Q

What is Scanning?

A

Takes place at 55-100 days after the removal of the rams, barren ewes are removed from the group to prevent wasting valuable feed

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10
Q

When does the majority of foetal growth occur?

A

The last 8 weeks of gestation

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11
Q

What occurs in February?

A

Nutrition is evaluated, concentrates often from the 6 weeks prior to lambing, administer pre-lambing vaccines to new ewes

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12
Q

March

A

Administration of pre-lambing ewe vaccines four weeks prior to lambing

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13
Q

April

A

Lambing, nursing a treatment, giving colostrum, recording of any issues, castration of male lambs and docking of lambs tails ewes and lambs returned to grazing

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14
Q

May

A

Administration of first lamb vaccinations, worming lambs, crop feeding lambs, they start to eat properly at 6 weeks

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15
Q

June

A

Administration of second lamb vaccine, shearing of adults and last years lambs

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16
Q

July

A

Weaning of best lambs, first batch are sold

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17
Q

August

A

Ewes and lambs grazing separately, lambs continuously monitored

18
Q

What is the average conception time for a ewe

A

42 days

19
Q

September

A

Lambs moved to stubble turnips for winter grazing, ewes rest and gain BCS

20
Q

From days 42-90

A

Feed for ewe maintenance, considerable placenta development- if ewe is not fed enough placenta doesn’t grow properly

21
Q

What does ultrasound scanning identify?

A

Identifies barren ewes, and which are carrying single/ twins

22
Q

What occurs at day 90

A

Parturition, rapid foetal grows, giving concentrates, ewes are fed 2x maintenance, so good quality hay or silage

23
Q

What occurs 6 weeks prior to lambing

A

Ewes are moved to shelters fields or indoors, some people may shear ewes at this time, may be problematic due to changes in weather

24
Q

What are the positives of indoor lambing?

A

Reduced risk of hypothermia, easier to monitor and intervention more control on ewe diet pre- lambing

25
Q

What are the negatives of indoor lambing?

A

Potential disease spread, risk of mismothering, stressful to move ewes prior to lambing

26
Q

What are the positives of outdoor lambing

A

More space, less disease spread and less stressful

27
Q

What are the negatives of outdoor lambing?

A

Harder to monitor, lamb hypothermia, predation

28
Q

What is the housing of Hill sheep?

A

Usually lamb outside as they are hardy, supplementary feeding is usually provided- sometimes ewes are moved to shelters grazing areas

29
Q

Housing of lowland sheep?

A

Shelter usually provided, protection brought in for ewes in late gestation and during lambing, housing needs to be well ventilated, ewe and lambs usually penned either individually

30
Q

What are the first signs of lambing

A

Not wanting to feed, separated from flock, lifts head up

31
Q

Common sheep husbandry procedures?

A

Ageing, BCS,

32
Q

How do you estimate the age of a sheep or goat

A

The age at which the milk teeth are replaced by permanent incisors

33
Q

Teeth in sheep, cow etc

A

Don’t have a full set on top, instead just have a dental pad

34
Q

What is the ideal BCS

A

4 at the top of Tupping, 3 at the lowest

35
Q

Foot trimming

A

Not recommended but important to exam sheep feet to help identify lameness

36
Q

What is the purpose of shearing

A

To ensure they don’t overheat, and reduces risk of fly strike

37
Q

Crutching

A

Wool is removed from around the tail and between the back legs

38
Q

How do people shear?

A

Most use a contracter, electric cutters are used

39
Q

Welfare considerations of shearing

A

Inexperience shearers can cause injury which can cause stress, shorn sheep need to be protected from very wet cold conditions

40
Q

Why do we delay vaccines in lambs and calves?

A

Can interfere with maternal antibodies in colostrum, lambs usually vaccinated from 3-4 weeks

VMS 1001 (24 decks)

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