Porcine

Question 1

State the most common porcine disease globally

Answer 1

Porcine Reproductive & Respiratory Syndrome (PRRS)

Question 2

A breeding herd presents with mild anorexia and abortion during early farrowing. What is your top differential

Answer 2

Porcine Reproductive & respiratory syndrome (PRRS)

Question 3

Grower pigs present with a cough and pyrexia - state the most likely differential

Answer 3

Porcine Reproductive & respiratory syndrome (PRRS)

Question 4

List the prognosis for PRRS for both the reproductive & respiratory aspects of the disease

Answer 4

20% mortality in growers
100% mortality in neonates

Question 5

List the mechanisms of PRRS spread (5)

Answer 5

• Infected live pigs
• Semen
• Embryos
• Mechanical Vectors
• Fresh pig meat

Question 6

How can PRRS be diagnosed antemortem

Answer 6

ELISA or PCR of serum or Oral fluids

Question 7

You diagnose a pig with PRRS, what treatment should you apply

Answer 7

There is no treatment, however, supportive care should be implemented to prevent secondary infection

Question 8

What is the main Post mortem finding in a pig with PRRS

Answer 8

Multifocal consolidation of the lungs + lungs failing to collapse

Question 9

A farmer wants to know how to prevent PRRS from entering his farm - state your recommendations

Answer 9

BIOSECURITY
- Test prior to animal entery
- Cull + pigs
- All in all out system
- Medicate & segregate early weanings
- Vaccination

Question 10

You diagnose a herd of pigs with Influenza A. What is the potential this disease will transfer to humans

Answer 10

Highly likely - ZOONOTIC

Question 11

What are the mains influenza A strains in pigs

Answer 11

H1N1 & H3N2

Question 12

Influenza A affects all stages of pigs - outline the clinical signs of each stage

Answer 12

Young pigs = Acute dissase (Cough, fever, nasal discharge)

Older pigs = Cough + decreased performance

Question 13

You diagnose a herd with Influenza. Outline a treatment plan.

Answer 13

Supportive care
asprin
NSAIDs
treat secondary infections with ABs

Question 14

You implement a treatment plan for an Influenza infection on farm. The farmer wants to know the mortality he should expect AND how to prevent this from occurring in the future

Answer 14

Prognosis is good with <1% mortality if treated well.

May have economic losses during disease recovery

Vaccination is the best prevention

Question 15

A pig presents with respiratory signs and epistaxis. State the most likely diagnosis and the gross lesions you would expect on PM exam

Answer 15

Actinobacillus suis

Petechial haemorrhage of multiple organs

Serofibrinous exudate in thoracic & abdominal cavities

Question 16

You diagnose Actinobacillus Infection. Outline a treatment plan

Answer 16

Antibiotics IM or IV to all animals infected & any with nose to nose contact

Followed by PO Antibiotics in water.

Question 17

List the three main presentations of Porcine circovirus disease (PCV2)

Answer 17

Post-weaning wasting multisystemic wasting syndrome (PMWS)

Porcine dermatitis & Nephropathy syndrome (PDNS)

Abortive disease

Question 18

What are the key clinical findings of circovirus disease

Answer 18

Enlarged LN
Lung oedema & do not collapse
Enlarged pale kidneys

Question 19

Outline the treatment & prognosis of Porcine circovirus disease

Answer 19

No treatment - Prognosis is poor - Prevent with vaccination