22.5.3: The down cow Flashcards
Disease caused by C. perfringens Type A
Gas gangrene and haemorrhagic enteritits
Disease caused by C. perfringens Type B
Lamb Dysentery
Disease caused by C. perfringens Type C
Struck
Disease caused by C. perfringens Type D
Pulpy kidney
Disease caused by C. chauvoei
Blackleg
Disease caused by C. novyi
Black disease
Disease caused by C. septicum
Braxy
Disease caused by C. tetani
Tetanus
Disease caused by C. sordelli
Gas gangrene
Which of the following cause enterotoxaemia?
* C. perfringens Type A
* C. perfringens Type B
* C. perfringens Type C
* C. perfringens Type D
* C. chauvoei
* C. novyi
* C. septicum
* C. tetani
* C. sordelli
- **C. perfringens Type A
- C. perfringens Type B
- C. perfringens Type C
- C. perfringens Type D**
1
Pasteurella pneumonia
2
Pasteurella septicaemia
3
Lamb dysentery
4
Pulpy kidney
5
Pulpy kidney
6
Struck
7
Braxy
8
Black disease
9
Blackleg/tetanus
Describe the causative agent of tetanus and how it infects the animal
- Causative agent: Clostridium tetani
- Found in the environment (soil) and enters body through puncture wounds, castration site infection etc.
Clinical signs of tetanus and how the disease progresses
- First sign often = elevated tail heaf
- Animals stand with legs abducted (‘sawhorse’ stance)
- Anxious expression: eyes may bulge, ears held back, nostrils flared
- Later on in disease: lockjaw and inability to eructate may lead to moderate bloat
- Recumbency
- Spontaneous seizures
- Death from respiratory failure
What clinical signs is this calf showing? What disease might this be suggestive of?
- Recumbency with opisthotonus and rigid limbs
- This calf has tetanus
True/false: this calf is having a nap. If you wake it up by loudly calling out and giving it a shake, it will be fine :)
False.
This calf has tetanus. You must reduce stimuli e.g. cover its eyes, block ears with cotton wool, and remain quiet and calm around it, otherwise it could have spontaneous seizures.
