Population Health Extensive Farming Flashcards
Why is preventative medicine encouraged?
- cost:benefit ratio of treating individual not good
- otherwise focus on clinical disease not subclinical
What are the 7 stages of herd/flock investigation?
- define problem
- history
- distance exam
- clinical exam ± PME
- diagnostic tests
- analysis and decisions
- reporting and furher monitoring
What is involvedin defining the problem?
- disease ± poor production
What is involved in refining the problem?
whole group affected? individuals?
What aspects of the history should be looked at?
- general
- management
- predisposing factors
- clinical signs and progression
- temproal and spatial patterns
- medicine book
Give examples of envrinomental clues to disease/pathogenesis?
- short grass
- wool on fence
Which animals should be physical examined?
Worst condition
What aspects of the physcial exam should be pefmored?
- age, BCS
- temp
- HR, RR
- Rumination rate
- Hydration status and mms
What can be acheived by PME?
- on the spot diagnosis
- collecting samples
What is the average cost of PME for sheep and cattle?
~£100-300
What further diagnositcs can be carried out?
- FEC (individual or multiple)
- heamotology and biochem (£20-40)
- how many animals to sample? 10%
What kinds of management changes can be implemented for control/prevention?
- reduce stocking density
- change nutrition or feeding systme
- dont mix groups
- buy from disease free herds
- quarantine
What are common problems dealt with in extensive farming systems?
Trace element deficiencies, external/internal parasitism
