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2020 July

The quiz questions are taken from:

The online learning pages focus on the important topics within worms, flies and lice and offer two approaches to learning: structured reading and question and answer.

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Answers and links to further information are provided below the image.

Questions

  1. What is the procedure that is used to conduct a DrenchTest?

  2. Under what situations should I give a quarantine drench?

  3. When will the blowflies return?

  4. Which sheep are most at risk of pregnancy toxaemia?

How effective are drenches on your property?
How effective are drenches on your property?

Answers

  1. What is the procedure that is used to conduct a DrenchTest?

A DrenchTest uses the procedure called a Worm Egg Count Reduction Test or WECRT

2. Under what situations should I give a quarantine drench?

Quarantine drench all sheep new to the property, whether newly purchased or returning from agistment. (Follow the link for drench type, timing and follow-up)

3. When will the blowflies return?

When it warms up! The maggots over-winter in the ground as larvae or pre-pupae. As the soil temperature increases (>15°C) the larvae pupate and emerge.

4. Which sheep are most at risk of pregnancy toxaemia?

Ewes in late pregnancy and particularly:

  • ewes with twin lambs (hence the name: “Twin lamb disease”)
  • early lambing flocks when there is a late break and stubbles/dry feed have deteriorated
  • ewes feeding on new green pasture high in water and low in dry matter and nutrients
  • ewes that stop eating during extreme weather.
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