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Tapeworms, Cestodes

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Introduction

Cestodes are tapeworms that are seen in many species; they may not be host specific. Most have intermediate invertebrate hosts such as beetles or earthworms.

Signs

  • It is doubtful if any signs are produced under most circumstances.

Post-mortem lesions

  • Occupy space in intestine and create small lesions at point of attachment.

Diagnosis

Identification of the presence of the worms at post-mortem examination.

Treatment

Flubendazole is effective at a 60 ppm in diet, however it may not have a zero withdrawal in commercial egg layers. Check your local regulations.

Prevention

Control the intermediate hosts, or birds' access to them.

Figure 34. Mature tapeworms with their heads (scolices) embedded in the intestine.