Respiritary Disease Flashcards
1
Q
Clinical evidence of a respiratory problem
A
- coughing
- thumping or dyspnoea
- fever
- nasal discharge
2
Q
Things to think about with housing and environment
A
- ventilation
- stocking rate
- all-in - all-out?
- mixing of age groups in a single airspace?
- temperature control
- humidity
3
Q
Diseases in the suckling period (4)
A
- Glasser’s
- PRRS
- Enzootic pneumonia
- Swine influenza
4
Q
Diseases in the weaners, growers and finishers (8)
A
- bordetella (3-4 weeks)
- *Glasser’s (3weeks- adult)
- *enzootic pneumonia (6-8 weeks - finisher)
- *PRRS (4-12 weeks -adult)
- mucoplasma hyorhinis (3-4weeks - adult)
- *pleuropneumonia (6-8 weeks +)
- *pasteurellosis (6 weeks +, mainly 12 weeks +)
- *influenza
5
Q
Diseases in Adults (6)
A
- influenza
- PRRS
- Glassers
- Enzootic pneumonia
- pleuropneumonia
- pasteurellosis
6
Q
Progressive atropic rhinitis
Facts (6)
A
- neonatal, non-immune piglets
- toxigenic P multiocida Type D
- colonises in nasal cavity after initial damage by bordetella
- osteoblasts killed by toxin or transform into fibroblasts
- osteoclastic activity is stimulated
- no remodelling of conchae and facial bones
7
Q
CS of Progressive atropic rhinitis (5)
A
- severe sneezing, blockage of lachrymal ducts
- epistaxis, purulent rhinitis
- distortion of the snout
- shortening of the upper jaw and malocclusion of the teeth
- depression of the growth rate by 30-40g/day
8
Q
PM Progressive atropic rhinitis
A
- shortening of the upper jaw
- absence of conchae at premolar 2
- distortion of nasal septum
- isolation of toxigenic P. multocida
9
Q
Progressive atropic rhinitis
- Epidemiology (5)
- Dx (4)
- Tx
- control (4)
A
- spread via respiratory route
- spread in carrier pigs
- spread by formites
- rapid killing by drying
- survives in water for 14 days
Dx;
- CS & PM
- isolation of toxigenic P multocida
- PCR
- serum antibody to toxin
Tx:
- penicillin/ampicillin/tylosin/trimethoprim sulphonamide (parenternally)
control:
- interrupted treatment of above at 2, 10 and 21 days
- vaccination
- colostrum
- al in, all out
10
Q
Glasser’s disease
A
- haemophilus parasuis
- infection by the upper respiratory tract –> bacteraemia –> septicaemia/localises to cayse polyserositis, meingitis or arthritis in 12-36 hours
- serotypes 4&5 are most pathogenic
11
Q
Glasser’s disease CS (8)
A
- 3-6 weeks or more (recently weaned are most common)
- fever
- anorexia and reduced water intake
- nasal discharge, tachypnoea and coughing
- lameness
- fluctuant, hot, swollen joints
- meningitis
- death within 2-5 days
12
Q
Glasser’s disease pathology (7)
A
- purulent rhinitis
- fibrinous pleurisy, peritonitis and pericarditis
- enlarged spleen
- petechial haemorrhage
- turbid joint fluid
- purulent meningitis
- bronchopneumonia
13
Q
Glasser’s disease
epidemiology (3)
Dx (3)
A
- direct transmission
- rapidly killed by drying
- maternal antibody protects for 2-4 weeks
Dx:
- CS : fever, lameness, swollen ears
- PM: fibrinous peritonitis, pleurisy and pericarditis
- H. Parasuis isolation from trachea
14
Q
Glasser’s disease
- Tx (3)
- Control (3)
A
Tx:
- parenternal medication of individuals
- water medication of groups (but remember they have a reduced water intake!)
- penicillin/ amoxycillin/ampicillin/tetracycline/ceftiofur/enrofloxacillin/treimethoprim sulphonamide
control:
- feed medication of above at risk period
- vaccination
- minimise stress
15
Q
Enzootic pneumonia (6)
A
- mycoplasma hyopneumoniae
- inactivated by drying within 48hours
- respiratory entry
- adhere to cilia of tracheal, bronchial and bronchiolar epithelium
- cause clumping and loss of cilia
- 2 week incubation
