Myxobolus cerebralis sample collection

See video below for how to collect head wedges for Myxobolus cerebralis pepsin-trypsin digest testing.

Acceptable specimens

  • For fingerlings and yearling fish (< 15 cm): Remove entire head (with opercles) from the body.
  • Fish > 15 cm:
    • Head wedge (see video showing how to collect a head wedge)
    • Head core (see AFS-FHS Blue Book Section 2 “Sampling” resource for collection information)

Collection materials

  • Serrated knife
  • Whirl-Pak bags

Sample collection instructions

This picture shows the landmark for removing the entire head.

Dead fish with knife held on the top of head aligned with the gills.