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Flashcards in Sudden Death in FA Deck (16):
1

What is the first action needed if animals are found dead without cause?

move animals off pasture
- look around environment, perimeter, ditches

2

What should be looked for when investigating sudden death?

- poisonous plants
- any changes, ditching, cutting of trees
- piles of hedge/plant cuttings
- burnt out cars and car batteries - Pb
- feed stores

3

Give 6 causes of sudden death

1. infectious (septacaemia/anaemia/toxaemia eg. clostridia)
2. toxicity (plant or chemical)
3. metabolic disease
4. nutritional
5. other eg. climate or trauma
6. ditching -> exposure of tubers

4

What are the main casues of infectious septicaemia or toxaemia? What may predispose to this?

- usually bacterial
- environmental or commensal
- predisposed by management factors
> good nutrition eg. clostridial diseases
> high stocking density eg. slamonellosis
> flooding eg. leptospirosis
- check vax protocols

5

Outline a common clostidial vacination protocol

Ewe: senstiser + booster 4-6weeks later
Young lamb: maternal AB -> 12 weeks until weaning
Weaned lambs: decided whether or not to vaccinate depending on length of time to slaughter
- need 2 doses 4-6 weeks apart for full protection

6

What are potential infectious causes of anaemia? How can diagnosis be made?

- parasites (acute fascioliasis, haemonchosis)
> history - parasite control
- pale MMs
- PME more useful than FEC or bloods

7

Give examples of toxic plants

Yew
Oleander
Water Hemlock Dropwort (Dead mands fingers) - only tubers are toxic

8

Which minerals can be toxic if overdosed?

> selenium - very rapid death [check blood levels]
> copper [Cu levels/PME]

9

What is a common metabolic disturbance resulting in sudden death of cows?

Hypomagnesaemia
- cold wet pasture, no meg supplement, potassium applied to pasture antagonises Mg uptake
- majority of metabolic disturbances would be noticed if inspected regularly (bloat, peracute mastitis, twin lamb disease)

10

What nutritional imblaances may cause sudden death?

- Thiamine B12 deficinecy
- Change in GIT function (acidosis, bloat, gut torsion)
- Deficiency of essential nutrients (intrisic due to change in microflora eg. CCN [mainly cattle, sometimes sheep] or extrinsic eg. water deprivation -> salt poisoning and brain oedema)

11

What climatic effects may cause sudden death?

Lightning (rare)
Hypothermia (common, esp young sheared sheep)

12

What must all cows found dead be tested for?

Anthrax
- do not cut open or move until anthrax smear performed on ear

13

What clinical disease does anthrax cause?

- overwhelming septicamia
- enlarged spleen

14

Are goat vax protocol the same as sheep?

NO!

15

How should treatment for staggers be given?

Sub cut NOT IV!
- Mg

16

How may CCN be diagnosed on PME?

Brain may fluroesce under UV light