Module 10 knowledge checker

Aim to lamb a month before peak pasture production.

True

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False

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When managing breeding flocks, which of the following strategies should be considered?

Join maiden ewes and adults separately

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Avoid joining ewes within two weeks of shearing as shearing can disrupt cycling activity

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Avoid joining ewes with full wool as joining can be more physically difficult

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Pay particular attention to the pastures sheep are eating during joining as some can be toxic at different times

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All of the above

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What is the recommended joining ratio for rams to maiden ewes?

1%

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1.5%

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4%

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7%

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How long should rams and ewes be joined for?

Doesn’t matter

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2 weeks

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5 weeks

Correct Incorrect Correct answer

8 weeks

Correct Incorrect Correct answer

1 month

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The optimum birth weight for lamb survival is between 4.5 and 5.5 kg.

True

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False

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Which of the following recommendations is NOT true?

It is not recommended to shear or crutch ewes within 4 weeks from the start of lambing

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Carry out annual 6-in-1 booster vaccination of ewes between 4-6 weeks before lambing

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Controlling fox predation can be postponed until after lambing

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Which of the following factors increase lamb mortality?

Cold, wet and windy weather

Correct Incorrect Correct answer

Poor ewe condition score at lambing

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Poor feed availability

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Mismothering

Correct Incorrect Correct answer

All of the above

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Sheltered paddocks can reduce lamb mortality rates by about 10%.

True

Correct Incorrect Correct answer

False

Correct Incorrect Correct answer

Ewe weaners should be managed to reach growth targets after weaning to achieve satisfactory lifetime reproduction performance.

True

Correct Incorrect Correct answer

False

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How many weeks after the start of lambing should lambs be weaned?

No later than 10 weeks

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No later than 14 weeks

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No later than 16 weeks

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No later than 20 weeks

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Small but consistent gains can be made towards weaning more lambs by keeping ewes that fail to rear their young.

True

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False

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Which Australian Sheep Breeding Value (ASBV) trait does not relate to reproduction performance?

Conception (CON)

Correct Incorrect Correct answer

Litter size (LS)

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Clean fleece weight (CFW)

Correct Incorrect Correct answer

Ewe rearing ability (ERA)

Correct Incorrect Correct answer

Module 10: Wean more lambs

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