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36 Cards in this Set

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What parasite is commonly found on the tongue and in the esophagus of pigs? What superfamily does it belong to?
**Gongylonema pulchrum (Nematode/Spiruroidea)
What parasites are commonly in the stomach of pigs? What superfamily does it belong to?
** Ascarops strongylina (Nematoda/Spiruroidea)

** Physocephalus sexalatus (Nematoda/Spiruroidea)

*** Hyostrongylus rubidus (Nematoda/ Trichostrongyloidea)

* Trichostrongylus axei (Nematoda/ Trichostrongyloidea)
What nematodes are commonly in the small intestine of pigs? What superfamily does it belong to?
*** Ascaris suum (Nematoda/ Ascaroidea)

** Globocephalus urosubulatus (Nematoda/ Strongyloidea)

*** Strongyloides ransomi (Nematoda/ Rhabditoidea)
What acanthocephla is commonly in the small intestine of pigs?
*** Macracanthorhynchus hiruinaceus
What protozoa are commonly in the small intestine of pigs? What phylum does each belong to?
*** Cystoisospora suis (Apicomplexa)

** Eimeria spp. (Apicomplexa)

** Cryptosporidium parvum (Apicomplexa)
What parasites are commonly in the liver of pigs?
* Fasciola hepatica (trematoda)

* Fascioloides magna (trematoda)

* Taenia hydatigena (cestoda)

** Echinococcus granulosus (cestoda)
What nematode is commonly found in the respiratory tract of pigs? What superfamily does it belong to?
*** Metastrongylus spp.(Nematoda/ Metastrongyloiea)
What nematode is commonly found in the urinary tract of pigs? What superfamily does it belong to?
*** Stephanurus dentatus (Nematoda/ Strongyloidea)
What parasites are commonly in the musculoskeletal system of pigs?
*** Trichinella spiralis (Nematoda/ Trichuroidea)

*** Taenia solium (Cestoda)

** Spirometra mansonoides (Cestoda)

** Sarcocystis spp. (Protozoa/ Apicomplexa)

** Toxoplasma gondii (Protozoa/ Apicomplexa)
What mites are commonly found on the integument of pigs?
*** Sarcoptes scabei

* Demodex phylloides
What are the common parasite eggs found in swine feces?
1. Macracanthorhynchus hirudinaceus

2. Strongyle type

3. Ascaris suum

4. Trichuris suis

5. Stephanurus dentatus

6. Metastrongylus sp.

7. Strongyloides ransomi

8. Physocephalus sexalatus
What type of parasite is Gongylonema pulchrum?
A nematode belonging to the superfamily Spiruroidea

* Commonly found on the tongue and esophagus of pigs
What is the common name for Gongylonema pulchrum?
Stitch worm
What type of life cycle does Gongylonema pulchrum have?
Indirect LC
What is the intermediate host of Gongylonema pulchrum?
Dung beetles or cockroaches
What are some identifying characteristics of Gongylonema pulchrum?
* Long slender worm 40-90mm
* Cuticular plaques on anterior end resemble corn on the cob
* Thick-shelled embryonated eggs (do not float well)
* Adults found in esophageal and lingual mucous membrane making the characteristic grossly visible raised sinusoidal tracts
Why is Gongylonema pulchrum an important parasite to consider when slaughtering pigs?
Condemnation of tongues for pickled pork tongue
What is the PPP and treatment of Gongylonema pulchrum?
PPP: 8 weeks

Treatment: None, prevent swine from consuming the IH (dung beetle/cockroach)
What type of parasite is Ascarops strongylina?
A nematode belonging to the SF Spiruroidea found in the stomach of pigs
What type of life cycle does Ascarops strongylina have?
Indirect
What is the intermediate host of Ascarops strongylina?
Dung beetles
How do swine become infected with Ascarops strongylina?
By ingesting IH or PH containing L3 larvae
Where is Ascarops strongylina found in pigs?
Adults found under gastric mucus layer on mucosal surace
What are identifying characteristics of Ascarops strongylina?
* Pharyngeal wall seen as double stranded spiral (braided)

* Small thick-shelled embryonated eggs with rims around each pole (dont float well)
What does Ascarops strongylina cause in stomach of pigs?
* Gastritis
* Ulcers
What type of parasite is Physocephalus sexalatus?
A nematode belonging to the SF Spiruroidea that is found in the stomach of pigs
What type of parasite is Physocephalus sexalatus?
A nematode belonging to the SF Spiruroidea that is found in the stomach of pigs
What type of parasite is Physocephalus sexalatus?
A nematode belonging to the SF Spiruroidea that is found in the stomach of pigs
What type of life cycle does Physocephalus sexalatus have?
Indirect
What is the IH of Physocephalus sexalatus?
Dung beetle
How large is Physocephalus sexalatus?
Males: 8mm

Females: 17mm
Where are the adult Physocephalus sexalatus found in pigs?
Adults live under gastric mucus on gastric mucosa
What are some identifying characteristics of Physocephalus sexalatus?
* Pharyngeal wall seen as a single spiral (stacked coins)

* Cervical alae and asymmetrical cervical papillae may be seen

* Elongate eggs are embryonated with a pit at each pole (do not float well)
What does Physocephalus sexalatus causein the stomach of pigs?
* Gastritis

* Occ. ulcers
What type of parasite is Hyostrongylus rubidus?
A nematode from the SF Trichostrongyloidea found in the stomach of pigs
What type of life cycle does Hyostrongylus rubidus have?
DIrect