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Controlling sheep internal parasites - Answers
Integrated Pest Management (IPM) involves using a variety of control methods to control a problem organism. The control methods take into account the nature of the host organism, the problem organism and the environmental conditons that influence the incidence of the disease.
After reading through this work on controlling internal parasites in sheep, make a summary of the methods available for controlling the incidence of worms in sheep that could be used in an IPM program.
- Use of chemicals (drenches)
Use drenches strategically.
Rotate the type of drenches used.
- Grazing management
Put weaners onto 'clean pastures'.
Rotate pastures between sheep and cattle or between sheep and cropping.
- Keep sheep in good condition
Sheep in good condition are less susceptible to worms.
- Select worm resistant sheep
Over time worm resistance can be selected for in sheep breeding systems.
- Identify worm burdens
Use FECRT to determing worm types and levels in sheep so control methods can be targeted.
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