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Collect fecal samples

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Collecting fecal samples for analysis is a dirty but necessary job. An analysis is used to identify and determine the number of parasite eggs present in an animal’s feces. Higher counts indicate a higher worm burden. The decision of whether or not to worm and what wormer to use is based on a fecal analysis.

If the group is larger than 100, collect samples from 10% of the group

Tools needed:

  • Plastic sealable baggies (such as Ziploc®)
  • Disposable/plastic spoon
  • Cooler
  • Permanent marker
  • Fecal loop (if available)

To test an individual sheep:

  1. Isolate the animal in question (in a pen or corral by itself).
  2. Wait for the animal to defecate.
  3. While wearing gloves, spoon a heaping tablespoon into the baggie (from the top portion of the patty).
  4. Write the name of the group on the baggie (ex. Wool ewes north farm).
  5. Place the samples into the cooler.
  6. If the sample is to be sent to a lab or local vet, follow the guidelines supplied by the lab/vet.

Collecting samples from the flock:

If testing a group of less than 100 animals, collect samples from at least 10.

If the group is larger than 100, collect samples from 10% of the group.

  1. Gather the flock in a corral.
  2. Wait 10-15 minutes for the ewes to drop fresh samples.
  3. Collect samples with spoon and insert into baggie.
  4. Write the name of the group on the baggie (ex. Wool ewes north farm).
  5. Place the samples into the cooler.
  6. If the sample is to be sent to a lab or local vet, follow the guidelines supplied by the lab/vet.

Using the fecal loop:

  1. Restrain the animal to be tested.
  2. Lubricate the loop and insert the loop into the rectum and swoop to collect fecal material.
  3. Remove the loop and transfer the contents to a baggie (be sure to clean and sterilize the loop before using again).
  4. Write the name of the group on the baggie (ex. Wool ewes north farm).
  5. Place the samples into the cooler.
  6. If the sample is to be sent to a lab or local vet, follow the guidelines supplied by the lab/vet.

To find a lab that can perform a fecal analysis for you, contact your local veterinarian or extension office.

After analysis, consult your veterinarian for a recommended worming procedure.