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1. Which age groups and under what conditions are sheep and goats most often affected by coccidiosis?
2. Why is it important to collect and destroy maggots from flystruck sheep?
3. Under what conditions are rubbing sheep unlikely to have lice?
4. How does feedlotting or zero-grazing benefit dairy goats?
These parasites are usually acquired in the first few months of life and small numbers are carried by most young animals, usually causing no ill effects. However, with stress and overcrowding, particularly under damp unhygienic conditions, disease may occur. It is most commonly seen in young stock just before weaning, or in lambs or kids, or hoggets in feedlots, and other situations where stock are confined at very high stocking rates. Coccidiosis in young animals is usually associated with very cold conditions and poor pasture nutrition resulting in a reduced milk supply from the ewe or doe, and forcing the lambs or kids to graze close to the ground.
This breaks the life cycle, which is especially important if the maggots have survived on sheep that have had a preventative product applied previously and these maggots are resistant to the product.
If all of the following apply, lice are unlikely to be the cause of rubbing: