Porcine resp disease complex

Question 1

name 6 bacteria which contribute to the PRDC

Answer 1

1. bordatella bronchiseptica
2. haemophilus parasuis
3. myocoplasma hyopneumoniae
4. pasteurella multicida
5. strep suis
6. A. pleuralpneumoniase

Question 2

name 5 viruses which contribute to PRDC

Answer 2

1. PRV -
2. PRRSV - resp and repro
3. PCV2 -circovirus
4. SIV - swine influenza
5. PRCV

Question 3

how are most resp disease controlled

Answer 3

biosecurity

husbandry management - as resp path are ubiquitous

Question 4

what are the major differences in pig lung anatomy

Answer 4

v lobulated
tracheal bronchus (3 in total)

Question 5

what is the target of PRRS

Answer 5

alveolar mphages

virion released = damage

Question 6

name the 3 strains of flu virus that make SIV

Answer 6

H1 N1
H1 N2
H3 N2

Question 7

desc the simple pathogenesis of SIV

Answer 7

12hr incubation
rapid, severe onset
immunity last 6mth max

Question 8

what disease does PCV 2 cause?

Answer 8

lymphocyte depletion
mummification
non-viable piglets

Question 9

descr the transmission of PCV 2

Answer 9

semen
transplacental (neonate subclin shed)
hardy in environ
survives many disinfectants
vaccinate

Question 10

what agent causes enzootic pneumonia?

Answer 10

mycoplasma hyopneumoniae

Question 11

desc the simple pathogenesis of EP and its transmission

Answer 11

not hardy in environ
incubation 8wks
3km on wind
carrier pigs

Question 12

how is EP treated?

Answer 12

LA OTC injection

Question 13

what is bordatella bronchiseptica usually cause?

Answer 13

necrohaemorrhagic pneumonia (piglets)
bronchopneumia (adults)
risk of 2ry infections as detroyed cilia on resp epithelium

Question 14

how do you prevent b bronchiseptica?

Answer 14

vaccinate - nasal
1-3do
1ml/nostril