Swine Flashcards
Which organism is associated with spirochaetal colitis in swine?
Brachyspira pilosicoli
What is Stephanurus dentatus?
Kidney worm of pigs, they are often in or near kidneys, in ureters or perirenal fat. They cause posterior ataxia and paralysis due ti larvae migrating along spinal cord. DX is made with US finding ova in urine or necropsy.
What is malignant hyperthermia?
Rare induction of hyper metabolic reaction in skeletal muscle of susceptible individuals by halothane. CS - muscle rigidity, increased body temperature, increased oxygen consumption and production of CO2. Halothane is used as the anesthetic agent.
What are the clinical signs of swine influenza in pigs?
CS - high fever, prostration, coughing, anorexia, conjunctivitis, oculonasal discharge. Causes respiratory illness in most pigs in the herd. Recovery takes about 1-2 weeks.
What are the morbidity and mortality rates of swine influenza in pigs?
Low mortality and high morbidity
What is the primary host for psuedorabies?
Pigs
What is transmissible gastroenteritis?
Viral disease of the SI causing vomiting and watery diarrhea. No other disease in pigs spreads so rapidly and such high mortality in piglets, mortality is 100% in piglets <2 week old, seldom die if <1 month old. No TX
What causes acute ileitis and what are the CS?
Caused by Lawsonia intracellularis
CS - diarrhea, extremely thickened small intestines, and wasting pigs (decreased weight)
-disease becomes apparent when pigs are >12 weeks of age
When is the lawsonia intracellularis vaccine for acute ileitis usually administered?
Usually administered during mid-late nursing stage (6-8 weeks)
How does Ascaris suum cause respiratory problems in pigs?
Ascaris suum is a round worm of pigs where its larvae travel through the liver and into the lungs causing verminous pneumonia which is usually not responsive to antibiotics
What is a risk factor for roundworm infestations in pigs?
Raising pigs outside
Where is sarcoptes scabiei commonly found in pigs?
In the ear canal or behind the ears
What kind of hernias are common in pigs? Which is more common in females and males?
Umbilical hernias and inguinal hernias are the most common in pigs. Inguinal hernias occur more commonly in males than females. They can be unilateral or bilateral and occur more commonly on the left side. Umbilical hernias occur in both sexes but slightly more common in females.
What affect does ascaris suum have on the liver in pigs?
The larvae of roundworms migrate through the liver causing “white spots” called milk spots as a result of fibrosis and hemorrhage
What is Strongyloides ransomi in pigs?
Threadworm of pigs. Reside in the small intestine of suckling piglets. They are most commonly transmitted transcolostrally. Heavy infections can cause diarrhea, anemia, emaciation, and death.
