Swine Flashcards
Porcine Epidemic Diarrhea is what type of virus
Coronavirus
PED is similar to what other Dz but is not related
Transmissible Gastroenteritis
Common clinical signs of PED
Acute outbreaks of severe diarrhea, vomiting and high morbidity
In endemic PED herds which age group is typically affected
Suckling and recently weaned pigs
T/F: PED immunity develops over 2-3 weeks and allows colostral protection for neonates
TRUE
What is the route of spread for PED
fecal-oral route
**Transport and markets are high contamination sites
Iodine deficiency leads to the birth of ____
Weak or dead pigs that are largely devoid of hair
Mucinous edema
T/F: Iodine deficiency can cause prolonged gestation
TRUE
What is an easy way of avoiding iodine deficiency
Use iodized salt in feed ration of gestating sows
What two things in suckling pigs lead to Iron Deficiency Anemia
Rapid growth and expansion of blood volume
Piglets can be given an iron injection to prevent anemia but must be done before what age
7 days
T/F: Piglets in confinement are more susceptible to iron deficiency anemia
TRUE
**Piglets without access to iron in the soil or feces are more likely to have anemia
What is Parakeratosis and what age is it seen
Zinc responsive dermatosis
2-4 month old
Parakeratosis is most commonly caused by
consumption of excessive calcium
What are 2 differentials for parakeratosis
Mange and greasy pig
Rickets is caused by a deficiency of
Vit D or phosphorous
**not exposed to sunlight
Which category of pig is most likely to get osteoporosis
Sows mobilizing minerals for high milk production
Osteoporosis often results in fractures when
Latter part of nursing period, immediately after weaning or during mating
What is the most important etiologic factor leading to osteoporosis
inappropriate ration formulation/mixing
**confinement also plays a role
What factors can destroy Vit E or make it less bio-available
Polyunsaturated FA
Vit A
Mycotoxins
What three syndromes does Vit E/Selenium cause
Mulberry Heart
Hepatosis dietetica
White muscle disease
What happens with mulberry heart
sudden death in pigs 4 wks 4 mo that were believed to be healthy
What age of pig are most susceptible to aflatoxicosis
young nursing or weaned growing pigs
What are clinical signs of aflatoxicosis
Reduced feed intake Immunosuppression Tissue hemorrhage Icterus Sudden death
Aflatoxicosis can cause hepatotoxicosis causing the liver to be
Smaller
Fibrotic
Ascites
What is the fungus found in grasses that cause ergotism
Claviceps purpurea
What are clinical signs of ergotism
Ischemic necrosis followed by sloughing of parts of the extremities, mainly tails, ears and hooves
What can ergotism cause in the sow
Inhibit mammary development
Reduced litter size
Reduced birth weight
Post farrowing agalactia
What causes crusting and ulceration on the snout, lips, buccal commissures and prepuce
Trichothecene toxicosis (Fumonisin)
What does zearalenone cause in gilts
Vulvovaginitis
Precocious mammary development
Persistent anestrus or pseudopregnancy
What is another name for haemophilus parasuis
Glasser’s Disease
What is haemophilus parasuis characterized by
Meningoencephalitis (incoordination, paresis, recumbent)
Polyserositis
Polyarthritis
Bact pneumonia
What age group is usually affected by haemophilus parasuis
3 wk - 4 mo old pigs
Haemophilus parasuis often occurs secondary to what
Stressful event
What are the characteristics of Mycoplasma pneumonia
Coughing, stunted growth, reduced feed efficiency
Mycoplasma usually affects which age of pig
Growing and finishing phases
Mycoplasma is considered to have a central role in which disease
Porcine Respiratory Disease Complex
What does mycoplasma hyosynoviae cause
Synovitis in growing swine
What does mycoplasma hyorhinis cause
Fibrinous polyserositis in young pigs
What is swine influenza characterized by
Sudden fever, occulonasal discharge, weakness
Followed by paroxysmal couging
Swine influenza is more common in which type of system
Continuous production system
What are the common sites for osteochondrosis
Medial femoral condyle Humeral condyle, head Glenoid of scapula Distal ulna Lumbar vertebrae
Dyschondroplasia has been attributed to
rapid growth and early excessive weight bearing pressure on cartilage
Clinical signs of salt poisoning
Aimless wandering Blindness Head pressing "Dog Sit" Leg paddling
What pathological signs does salt poisoning cause
Meningeal and cerebral perivascular cuffing by eosinophils
Gastric ulceration refers to
Destruction of pars esophagea (non-glandular stomach) with formation of bleeding ulcers
What age of pig has the highest prevalence of gastric ulcers
120 lbs to market weight
What are some risk factors for gastric ulcers
Finely ground feed Pelleted ration Low fiber Skim milk Hot summer months
Clinical signs of gastric ulcers
Related to blood loss
Pallor, black tarry feces, anemia, grinding of teeth
T/F: Vit K is a treatment for gastric ulcers
TRUE
Which age group typically gets trichuris suis
Feeder/finishers and mature swine
Clinical signs of trichuris suis
Mucoid or mucohemorrhagic diarrhea with loss of condition
Trichuris suis affects the ____ intestine
Large intestine
Where are FMD lesions seen in pigs
Coronary band, heel, interdigital space
Snout/oral vesicles
What FMD lesions are seen in cattle
Oral, teat, hoof (interdigital, coronary)
Excess salivation, drooling, nasal discharge
Classical swine fever is caused by which virus
Flavivirus (pestivirus)
Clinical signs of swine fever
Fever, anorexia, weakness, erythematous lesions (light skin), severe leukopenia
Clinical signs of african swine fever
Fever, cyanosis, recumbent, bloody diarrhea, abortion, erythema
