Swine Respiratory Diseases Flashcards
when do pigs start to cough after weaning with PRRS?
7-14 days
5-10%
in what weather does porcine respiratory and reproductive virus survive well?
cold weather
how can you treat PRRS?
isolate secondary bacteria and provide appropriate antibiotic therapy
anti-inflammatories
good husbandry
what does atrophic rhinitis look like?
piglets sneezing while suckling
worse after weaning
coughing
growth rate is severely slowed
deformed snout
what causes atrophic rhinitis?
toxigenic Pasteurella multocida type D
what does the toxin of Pasteurella multocida type D do?
activates osteoclasts and increases bone reabsorption throughout body
who does swine influenza affect?
all ages: suckling to adult
how does influenza affect the lungs?
lobular or patchy consolidation
not diffuse
when do most pigs start to cough with Mycoplasma hyopneumoniae?
12-16 weeks
what pneumonia does Mycoplasma hyopneumoniae cause?
cranioventral pneumonia
who does Actinobacillus pleuropneumoniae impact?
10-12 weeks of age or older
stressful event or overcrowding
does Ascaris suum respond to antibiotics?
no
what are some common secondary bacterial infection in porcine reproductive and respiratory syndrome?
E. coli
Strep suis
Glaeserella parasuis
what type of pneumonia does porcine reproductive and respiratory syndrome cause?
diffuse interstitial pneumonia
what does porcine reproductive and respiratory syndrome infect?
lymphoid tissue- macrophages
what does the loss of turbinates in atrophic rhinitis predispose pigs to?
pneumonia
how can you treat atrophic rhinitis?
inject suckling pigs with long-acting tetracycline
tylosin, sulfamethazine in feed
what does swine influenza present as?
coughing
sneezing and clear nasal discharge
high fevers
decreased feed intake
low mortality
how can you treat swine influenza?
NSAIDs
treat secondary infections with antibiotics
how can you prevent swine influenza?
vaccination
difficult because of maternal antibody interference
reverse zoonosis
what does Mycoplasma hyopneumoniae look like?
cough dry and non-productive
cough for about a month
alert, no high fevers
what do pigs with Mycoplasma hyopneumoniae show some improvement with?
tulathromycin
does Mycoplasma hyopneumoniae invade lung tissue?
no
what bacteria is enabled by Mycoplasma hyopneumoniae?
Pasteurella multocida can colonize and proliferate
how can you treat Mycoplasma hyopneumoniae?
lincomycin, tiamulin, tetracyclines
tulathromycin, enrofloxacin
what does Actinobacillus pleuropneumoniae present as?
per acute mortalities
red tinged foam from nose
dyspnea
cyanosis
lethargic, abnormal temperatures
anorexia
what can you use to treat Actinobacillus pleuropneumoniae?
ceftiofur, enrofloxacin, tulathromycin
tilmicosin in feed
tiamulin in water
what is the presentation like of Ascaris suum?
coughing after put on new/dirty floor
not responsive to antibiotics
