GI inf - Pigs Flashcards
name 6 bacterial causes of pig GI dz
- E coli
- campylobacter coli
- salmonella
- brachyspira
- lawsonia intracellularis
- clostridia
name 3 viral causes of pig Gi dz
- rotavirus
- coronavirus
- PCV2
name 5 protozoan and helminth parasites which can cause pig GI dz?
- ascarids
- strongyloides
- trichuris suid
- coccidiosis
- cryptosporidium
what 2 dz does lawsonia cause
- porcine proliferative enteritis - hose-pipe
2. haemorhagic bowel syndrome - no d+, sudden death
which 2 types of e coli cause GI dz
ETEC - weaner pigs
STEC - older,
which type of e coli causes oedema dz?
STEC
what virulence factors cause STEC dz
K88 fimbriae
Shiga toxin 2e
which 2 clostridial spp cause gassy d+ in pigs commonly?
perfringens and difficile
which 2 types of c. perfringens are most common and at what stage ig
type A = chronic d+
type C = neonates, acute, high mortality
a 3rd spp of clostridium causes ‘aero-chocolate’ gassy liver, which is it?
novyi. from soil
which clostria can be treated with abx?
difficile (no vacc) and perfringens type A
what salmonella spp i called hog cholera and is v zoonotic and pathogenic?
s. cholerasuis
which is the most common salmonella spp seen at slaughter?
s tymphimurium
what 2 types of campylobacter cause gi dz in pigs
c. coli
c. mucosalis
out of PCV2, corona and rotaviruses, which is the DNA virus?
PCV2
what is the pathogenesis of rotavirus infection and what bacteria is it commonly assoc with?
villi tips are destroyed
30% carrier rate
shed at parturition
E coli
what vaccine is available for which rotavirus type?
type A only, not B, C or E
what 2 syndromes does coronavirus lead to?
- porcine epidemic d+ = assoc with resp dz, villi destroyed
- transmissible GE = sow bc immune but spread it. V+D and high mortality
what disease syndrome does PCV2 lead to?
PMWS post-weaning multisystemic wasting syndrome
2mo+
wasting, d+, lesions
what are the clincal signs of swine dysentry?
piglets - acute d++ +- blood +- mucus
weaners and growers = same, but erythema
finsihers = sudden death
what causes swine dysentry?
brachyspira hyodysenteriae
how is swine disentry transmitted?
poo-face
carrier - subclnical carriers, stress emerges
flies
vermin/birds
how do you treat swine dystentry
biosecurity and fly control. some can use abx in water
