Lecture 9 10/17/24 Flashcards
What age of pig is found in a farrowing barn?
piglets from birth to weaning at about 21 days
What age of pig is found in a nursery barn?
feeder pigs 3 to 9 weeks of age
What age of pig is found in a finishing barn?
finishing/market hogs 9 to 20 weeks of age
How are sows organized within their barn?
based on farrowing date
Why is it important to maintain a temperature of around 95 degrees in the farrowing barn?
to prevent cold stress that would predispose the piglets to illness/infection
Why is it important to regularly clean the finishing barn?
ammonia smell can come up through the slatted floor and cause poor air quality
What stressors can impact a pig at weaning?
-nutritional stress
-cold stress
-respiratory stress
-social stress
What are the antemortem diagnostics that are commonly done in pigs?
-physical exam
-nasal/nasopharyngeal culture
-tonsillar scraping
-sacrfice and necropsy
What are the therapeutic options used in pigs?
-parenteral or in-feed antibiotics
-NSAIDs
-depopulation/repopulation
What are the characteristics of atrophic rhinitis?
-two bacteria work together to cause synergistic disease
-involves Bordetella bronchiseptica and Pasteurella multocida
-type D toxin produced by P. multocida
What is the pathophysiology of atrophic rhinitis?
-piglets acquire B. bronchiseptica from sow
-B. bronchiseptica causes mucosal damage
-P. multocida co-colonizes nasal cavity
-toxin produced by P. multocida induces osteoclastic activity
How does age of the pig impact the severity of atrophic rhinitis?
pigs that get infected at a younger age will have more severe turbinate atrophy
What are the consequences of atrophic rhinitis?
-leads to secondary bact. infection
-poorer performance compared to uninfected pigs
What are the clinical signs of atrophic rhinitis in farrowing/nursery pigs?
-sneezing
-nasal discharge
What are the clinical signs of atrophic rhinitis in finishing pigs?
-distortion of snout and face
-excess lacrimation
-epistaxis
-failure to thrive