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Flashcards in Population Health Extensive Farming Deck (13):
1

Why is preventative medicine encouraged?

- cost:benefit ratio of treating individual not good
- otherwise focus on clinical disease not subclinical

2

What are the 7 stages of herd/flock investigation?

1. define problem
2. history
3. distance exam
4. clinical exam ± PME
5. diagnostic tests
6. analysis and decisions
7. reporting and furher monitoring

3

What is involvedin defining the problem?

- disease ± poor production

4

What is involved in refining the problem?

whole group affected? individuals?

5

What aspects of the history should be looked at?

- general
- management
- predisposing factors
- clinical signs and progression
- temproal and spatial patterns
- medicine book

6

Give examples of envrinomental clues to disease/pathogenesis?

- short grass
- wool on fence

7

Which animals should be physical examined?

Worst condition

8

What aspects of the physcial exam should be pefmored?

- age, BCS
- temp
- HR, RR
- Rumination rate
- Hydration status and mms

9

What can be acheived by PME?

- on the spot diagnosis
- collecting samples

10

What is the average cost of PME for sheep and cattle?

~£100-300

11

What further diagnositcs can be carried out?

- FEC (individual or multiple)
- heamotology and biochem (£20-40)
- how many animals to sample? 10%

12

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

13

What are common problems dealt with in extensive farming systems?

Trace element deficiencies, external/internal parasitism