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MONSTER HUNTER'S GUIDE TO: VETERINARY PARASITOLOGY
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Camelid Feces

Capillaria spp.

(aka., Hairworm, Threadworm, Pearsonema spp., Aonchotheca spp., and Eucoleus spp.)

Method of Detection:
  • Fecal float (simple or centrifugal)
​
Size:
  • Egg: 45–50 × 22–25 μm
Picture

Cryptosporidium spp.

(aka., Coccidia)

Method of Detection:
  • Acid-fast stain of fecal smear
  • Fecal float (with Sheather's sugar)
​
Size:
  • Oocyst: 4–7 × 4–5 μm
Picture

Dictyocaulus spp.

(aka., Lungworm)

Method of Detection:
  • Baermann (fresh feces)
​
Size:
  • First-stage larva: 300–580 μm

Eimeria cameli

(aka., Coccidia)

Method of Detection:
  • Fecal float (simple or centrifugal)
​
Size:
  • Oocyst: 80–100 × 55–94 μm

Eimeria macusaniensis

(aka., E. mac, Big Mac, Coccidia)

Method of Detection:
  • Fecal float (centrifugal >>> simple)
  • Centrifugation-sucrose flotation with a 60-minute flotation time may offer the greatest likelihood of finding the parasite (Cebra 2008).
​
Size:
  • Oocyst: 81–107 × 61–80 μm

Fasciola hepatica

(aka., Liver Fluke)

Method of Detection:
  • Fecal sediment
​
Size:
  • Egg: 130–150 × 63–90 μm
Picture

Fascioloides magna

(aka., Large American Liver Fluke)

Method of Detection:
  • Fecal sediment
​
Size:
  • Egg: 109–168 × 75–96 μm

Giardia sp.

(aka., Giardia duodenalis, Giardia intestinalis, Lamblia lamblia)

Method of Detection:
  • Fecal float for cysts (centrifugal in ZnSO4) (± Lugol's iodine)
  • Saline fecal smear of fresh feces for trophozoite (± Lugol's iodine)
​
Size:
  • Cyst: 8–13 × 7–10 μm
  • Trophozoite: 12–17 × 5–10 μm
Picture

Moniezia spp.

(aka., Common Ruminant Tapeworm, Double-pored Ruminant Tapeworm, Sheep Tapeworm)

Method of Detection:
  • Fecal float (simple or centrifugal)
​
Size:
  • Egg: 65–75 μm diameter
Picture

Nematodirus spp. or Marshallagia spp.

(aka., Thread-Necked Strongyle)

Method of Detection:
  • Fecal float (simple or centrifugal)
​
Size:
  • Egg: 152–260 × 67–120 μm

Paramphistomum spp.

(aka., Rumen Fluke)

Method of Detection:
  • Fecal float (simple or centrifugal)
​
Size:
  • Egg: 114–175 × 65–100 μm

Skrjabinema spp.

(aka., Pinworm)

Method of Detection:
  • Acetate tape cytology of perianal skin
​
Size:
  • Egg: 47–63 × 27–36 μm

'Strongyle' Type Ova

(aka., Haemonchus, Cooperia, Trichostrongylus, Teladorsagia, Oesophagostomum, Ostertagia, Bunostomum, Camelostrongylus, and Lamanema.)

Method of Detection:
  • Fecal float (simple or centrifugal)
​
Size:
  • Egg: 65–120 × 34–70 μm (depending on species)

Strongyloides papillosus

(aka., Threadworm)

Method of Detection:
  • Fecal float (simple or centrifugal)
​
Size:
  • Egg: 40–60 × 20–40 μm
Picture

Thysanosoma actinoides

(aka., Fringed Tapeworm)

Method of Detection:
  • Fecal float (simple or centrifugal)
​
Size:
  • Egg: 30 × 20 μm
Picture

Trichuris spp.

(aka., Whipworm)

Method of Detection:
  • Fecal float (centrifugal >>> simple)
​
Size:
  • Egg: 70–90 × 30–42 μm

Sources Cited:
  1. Zajac, Anne M., and Gary A. Conboy. Veterinary Clinical Parasitology. 8th ed. West Sussex: John Wiley & Sons, 2012. Print.
  2. Taylor, Mike A., R. L. Coop, and Richard L. Wall. Veterinary Parasitology. 4th ed. Chichester, West Sussex: Wiley Blackwell, 2016. Print.
  3. American Association of Veterinary Parasitologists. (2010). Retrieved 2019, from https://www.aavp.org.
  4. Radfar, Mohammad H., and Mansour A. Gowhari. “Common gastrointestinal parasites of indigenous camels (Camelus dromedarius) with traditional husbandry management (free-ranging system) in central deserts of Iran.” Journal of Parasitic Diseases 37.2 (2013): 225–230. Web. 2 Feb. 2019.
  5. Cebra, Christopher K., and Bernadette V. Stang. “Comparison of methods to detect gastrointestinal parasites in llamas and alpacas.” Journal of the American Veterinary Medical Association 232.5 (2008): 733–741. Web. 2 Feb. 2019.

© Lance Wheeler, 2018–2019

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