GI inf - Pigs

Question 1

name 6 bacterial causes of pig GI dz

Answer 1

1. E coli
2. campylobacter coli
3. salmonella
4. brachyspira
5. lawsonia intracellularis
6. clostridia

Question 2

name 3 viral causes of pig Gi dz

Answer 2

1. rotavirus
2. coronavirus
3. PCV2

Question 3

name 5 protozoan and helminth parasites which can cause pig GI dz?

Answer 3

1. ascarids
2. strongyloides
3. trichuris suid
4. coccidiosis
5. cryptosporidium

Question 4

what 2 dz does lawsonia cause

Answer 4

1. porcine proliferative enteritis - hose-pipe

2. haemorhagic bowel syndrome - no d+, sudden death

Question 5

which 2 types of e coli cause GI dz

Answer 5

ETEC - weaner pigs

STEC - older,

Question 6

which type of e coli causes oedema dz?

Answer 6

STEC

Question 7

what virulence factors cause STEC dz

Answer 7

K88 fimbriae

Shiga toxin 2e

Question 8

which 2 clostridial spp cause gassy d+ in pigs commonly?

Answer 8

perfringens and difficile

Question 9

which 2 types of c. perfringens are most common and at what stage ig

Answer 9

type A = chronic d+

type C = neonates, acute, high mortality

Question 10

a 3rd spp of clostridium causes ‘aero-chocolate’ gassy liver, which is it?

Answer 10

novyi. from soil

Question 11

which clostria can be treated with abx?

Answer 11

difficile (no vacc) and perfringens type A

Question 12

what salmonella spp i called hog cholera and is v zoonotic and pathogenic?

Answer 12

s. cholerasuis

Question 13

which is the most common salmonella spp seen at slaughter?

Answer 13

s tymphimurium

Question 14

what 2 types of campylobacter cause gi dz in pigs

Answer 14

c. coli

c. mucosalis

Question 15

out of PCV2, corona and rotaviruses, which is the DNA virus?

Answer 15

PCV2

Question 16

what is the pathogenesis of rotavirus infection and what bacteria is it commonly assoc with?

Answer 16

villi tips are destroyed
30% carrier rate
shed at parturition
E coli

Question 17

what vaccine is available for which rotavirus type?

Answer 17

type A only, not B, C or E

Question 18

what 2 syndromes does coronavirus lead to?

Answer 18

1. porcine epidemic d+ = assoc with resp dz, villi destroyed
2. transmissible GE = sow bc immune but spread it. V+D and high mortality

Question 19

what disease syndrome does PCV2 lead to?

Answer 19

PMWS post-weaning multisystemic wasting syndrome
2mo+
wasting, d+, lesions

Question 20

what are the clincal signs of swine dysentry?

Answer 20

piglets - acute d++ +- blood +- mucus
weaners and growers = same, but erythema
finsihers = sudden death

Question 21

what causes swine dysentry?

Answer 21

brachyspira hyodysenteriae

Question 22

how is swine disentry transmitted?

Answer 22

poo-face
carrier - subclnical carriers, stress emerges
flies
vermin/birds

Question 23

how do you treat swine dystentry

Answer 23

biosecurity and fly control. some can use abx in water