Testing Protocols Flashcards
When should EU cattle be tested for BSE?
Aged over 48 months and either…
- Subject to emergency slaughter
- Found at antemortem inspection to have suffered an accident or serious physiological functional problems
- Signs of a TSE
When should non-EU cattle be tested for BSE?
All cattle over 24 months, if subject to emergency slaughter, present at AME with an accidental injury or severe physiological dysfunction, or showing signs of a TSE
All animals over 30 months of age that are healthy at slaughter
Which animals must be trichinella tested?
Pigs
- All carcasses from uncontrolled housing
- All breeding sows and boars
- 10% of animals from controlled housing
*Horses, wild boar or other species susceptible
Within what period before slaughter must a flock of broiler chickens be tested for salmonella?
Within a period of 3 weeks before slaughter
The FCI must state the result
What is an acceptable level of salmonella contamination when tested in the abattoir as part of HACCP?
5 positive samples out of 50 in 10 consecutive weeks
What sample is collected for BSE testing?
Brain stem
What samples should be collected for scrapie testing?
The cerebellum and the brainstem
This allows classical scrapie to be differentiated from atypical scrapie
What sheep are tested for scrapie in slaughterhouses participating in the sheep TSE survey?
A percentage of animals over 18 months of age = more than 2 permanent incisors
When is the compulsory scrapie flocks scheme applied?
On farms where positive cases have been identified
What enforcements are put on scrapie positive flocks?
Movement restrictions for 2 years!!!
Whole flock genotyping and slaughter of susceptible phenotypes
= ARQ/ARQ, ARQ/ARH and AHQ/ARH
(ARR is the resistant phenotype)
Total flock slaughter without genotyping
- necessary in goats
Restocking with resistant phenotypes
TSE surveillance for the 2 year period
All cull she and fallen stock must be tested
What is the difference between active and passive surveillance?
Passive surveillance - clinical cases reported to APHA! Animal slaughtered and tested
Active surveillance - testing of sheep, cattle, goats and deer in abattoirs for tses
What sample is collected for BSE testing?
Brain stem
What samples should be collected for scrapie testing?
The cerebellum and the brainstem
This allows classical scrapie to be differentiated from atypical scrapie
What sheep are tested for scrapie in slaughterhouses participating in the sheep TSE survey?
A percentage of animals over 18 months of age = more than 2 permanent incisors
When is the compulsory scrapie flocks scheme applied?
On farms where positive cases have been identified
