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Heaviest lice infestations are seen in winter through to early spring. During this period cooler temperatures and thicker hair coats on cattle provide a more suitable environment for lice. Hot temperatures during summer reduce lice populations to low levels.
Cattle in poor condition and low-quality feed are more likely to have larger lice burdens and the lice are likely to persist for longer periods. Healthy cattle appear to develop some resistance, which controls lice burdens. Excessive lice infestations could indicate underlying stress, requiring further investigation.
For more information on controlling lice or other cattle health issues call Marcus O'Dwyer Animal Health Specialist 0447215744