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Questions

1. Should lambs be routinely drenched at lamb-marking?

2. What is the most important factor for susceptibility to body strike?

3. What are the 3 sources of possible lice introduction?

4. When individually assessing goats to decide their need for worm treatments, what 3 indicators are used?


Image: Melissa O'Garr, Hunnybee Farm and Pet Photography

Answers

1. Should lambs be routinely drenched at lamb-marking?

No. A routine drench is generally recommended at weaning, not lamb-marking. Generally, there is no benefit from drenching lambs at lamb-marking, however, it is good practice to WormTest the ewes just prior to lamb-marking. If this WormTest indicates that the ewes need drenching, the lambs should also be drenched. In winter rainfall areas if lambing is quite late in spring, the first summer drench may be given at lamb-marking, but then a weaning drench will only be given based on a WormTest result.

2. What is the most important factor for susceptibility to body strike?

Research over many years has shown that the most important factor affecting the risk of body strike is the presence of fleece rot.

3. What are the 3 sources of possible lice introduction?

  • Stray sheep
  • Purchased sheep
  • Non-sheep transmission

4. When individually assessing goats to decide their need for worm treatments, what 3 indicators are used? 

  • Anaemia— (insufficient red blood cells)—assess FAMACHA© score by examining the colour of the conjunctiva inside the lower eyelid
  • Poor body scondition—assess body condition score
  • Watery scours—assess faecal consistency