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Sheep Husbandry > Chapter Three > Flashcards

Chapter Three Flashcards

1
Q

What is the length of a ewe’s oestrus cycle?

A

16-18 days

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2
Q

What does the term “seasonal breeders” mean in relation to a ewes oestrus cycle?

A
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3
Q

List 3 advantages of using ewe lambs for breeding

A
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4
Q

List 3 disadvantages of using ewe lambs for breeding

A
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5
Q

What organisation governs the €URO-star Indexes for sheep?

A

Sheep Ireland. The €URO star index was introduced to provide sheep farmers with an additional tool for the selection of breeding animals.

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6
Q

The top 20% of animals within their breed have how many stars?

A

5 stars

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7
Q

Sheep Ireland is a Eurostar index system that was introduced in 2009, list and briefly explain the 2 breeding indexes used in the project

A
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8
Q

Name 3 characteristics/traits that make up the Terminal index?

A

Health.
Lambing.
Carcass
Growth

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9
Q

Name 3 characteristics/traits that make up the Replacement index?

A

Health
Lambing
Carcass
Growth
Maternal

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10
Q

Give 4 factors you should consider when selecting a ram for breeding

A
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11
Q

Why is ram selection so important for ensuring a good crop of lambs?

A

The dam is 1/2 the mating procedure.

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12
Q

Give 2 benefits of using a teaser ram in the lead up to breeding ewes.

A
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13
Q

At what age are lambs weaned from their mothers?

A

12-14 weeks old.

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14
Q

What is flushing?

A
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15
Q

What are the 3 stages of pregnancy in a ewe and how long does each stage last?

A
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16
Q

List 3 benefits to the winter shearing of ewes.

A
17
Q
  1. True or False. The recommended target weight for breeding ewe lambs is 40kg.
A

False. The recommended weight is 45-50kg.

18
Q

Compare and contrast the breeding of replacements as ewe lambs versus hogget’s. Your answer should make reference to target breeding weight.

A
19
Q

When does the majority of embryonic growth occur in pregnant ewes?

A

The majority of growth occurs in the final 7 weeks of pregnancy.

20
Q

How much of foetal growth occurs in the last 7 weeks of pregnancy? a. 50% b.65% c.75%

A

C 75%

21
Q

A ram makes up 50% of your flock. Describe 5 key factors which should influence a farmer’s decision when deciding to purchase a new ram?

A
22
Q

Discuss the feeding management of a twin bearing ewe in the final 7 weeks of pregnancy?

A
23
Q

What is dagging and when are 3 critical times when we need to dag ewes?

A

Dragging is removing any dirty lumps of wool that collect in certain areas around the ground, udder and tail ends of sheep.

24
Q

List 3 disorders associated with lactating ewes.

A
25
Q

Outline 3 production targets required for good profit in early lamb production.

A
26
Q

When should creep feeding be introduced to lambs produced in early lamb production systems?

A

1-2 weeks of age

27
Q

What type of land is associated with hill lamb production?

A
28
Q

What are the 5 options available to store lamb production farmers?

A

Option 1 Sell at weaning.
Option 2: Graze and sell mid-November.
Option 3: Graze + supplementary meal feeding at pasture and sell mid November.
Option 4: Finish Lambs on all meat diet after weaning.
Option 5: Graze for a period followed by finishing on all meal diet.

29
Q

Outline in detail the management operations of your early-season lamb production system under Ram Selection, Ewe Selection & Mating Management.

A
30
Q

Discuss advantages and disadvantages of a store lamb production system.

A

Because of the variability among hill and in the amount of green land available there is no single option that best fits all hill farmers.

There are number of options outlined in terms of their advantages, disadvantages and expected lamb performance.

31
Q

What three factors outside farmers’ control affect the profitability of store lambs?

A
32
Q

Compare and contrast early lamb production systems versus mid-season lamb production systems?

A
33
Q

What are the main stages in annual cycle of a mid season lambing flock?

A
34
Q

How do you select for breeding?

A
35
Q

What are the recommended ram to ewe mating ratios?

A
36
Q

What are the four factors that affect the amount of concentrates a ewe is fed before lambing?

A

Sheep Husbandry (5 decks)

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