Sheep Medicine Q&A 08
|This question was provided by Manson Publishing as part of the OVAL Project. See more Sheep questions|
In late summer a farmer complains that some ewes have lost considerable condition as a consequence of not grazing and are observed frequently kicking at their heads with their hindfeet, causing serious damage to the poll and ears. The affected ewes seem distressed, frequently running 10–15 m then stopping, only to start running away again.
|What are possible causes of this problem? (Most likely cause first.)||
Feeding around head wounds and ear tag injuries (and horn base) by the muscid fly Hydrotea irritans causes considerable irritation that frequently results in self-trauma. Grazing patterns are disturbed and affected sheep often isolate themselves and remain in shade where available.
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|How can this problem be controlled?||
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