Swine Respiratory diseases Flashcards
What ages of pigs have the highest incidence of resp dis?
nursery pigs and grower/finisher units
What are some initiating factors of swine dis?
- stress from mixing and moving
- high stocking densities
- inadequate ventilation and temp control in large barns
How do we prevent/control swine dis?
- “all in/all out” movement
- closed herd
- good sanitation practices
- good ventilation
- reduced crowding
- using available vx’s
What is atrophic rhinitis?
- caused by bordetella bronchiseptica & pasteurella multocida
- damages and destroys nasal turbinates
What are the clinical signs of rhinitis?
sneezing
nasal discharge
nosebleeds
twisted snouts
runny eyes, stains
How is rhinitis diagnosed?
clinical signs and lesions
swabs and culture
PM at slaughter - look at turbinates
How do we treat/control rhinitis?
antibiotics, proper ventilation and disinfection, no vx
What is mycoplasma pneumonia?
“Mycoplasma hypopneumoniae”
- aka enzootic pneumonia
- 3-5 mths old highest incidence
- high morbidity, low mortality
What are the clinical signs of mycoplasma pneumonia?
- persistent non productive cough
- decreased growth
- decreased feed efficiency
- lung lesions at slaughter
How do we treat /control mycoplasma pneumonia?
vx of feeders, all in/out, improve ventilation, decrease crowding
What are the characteristics of swine influenza?
highly contagious, type A influenza virus (H1N1, H3N2), mortality ~1-4%
What are the clinical signs of swine influenza?
- cough
- nasal and ocular discharge
- fever
- dyspnea
- anorexia
- weakness
How do we treat/control swine influenza?
vx, strict disease control, good management practices, reduce stress
What is PRRS?
porcine reproductive and respiratory syndrome
When do we see PRRS?
- in farrowing units cause reproductive disease in sows (aborted, weak, or mummified piglets) & pneumonia and death in nursing piglets
- post weaning respiratory disease
