103. Necrotic enteritis of piglets. Flashcards
1
Q
Pig enterotoxaemia Occurence?
A
Pig enterotoxemia (infectious necrotic enteritis of piglets)
• Occurrence:
- worldwide,
- regional
2
Q
Ethiology of Necrotic enteritis?
A
Etiology:
- C. perfringens C -
- alpha and beta toxin (trypsin-sensitive)
3
Q
Epidemiology?
A
Epidemiology:
- soil-gut,
- piglets of young sows,
- imported sows more frequently,
- older sows (colostral immunity)
4
Q
Pathogenesis?
A
Pathogenesis:
- infection PO
- > replication in small intestine
- > necrosis
- > toxemia, death
- mortality 20-100%
5
Q
Clinical signs?
A
Clinical signs:
- 2-4 days old piglets
- fever
- anorexia
- weightloss
- diarrhea (feces greyish yellow, gas bubbles, debris)
6
Q
Pathology?
A
• Pathology:
- Jejunum: rigid, tube-like,
- reddish MM,
- foamy gut content,
- gas bubbles,
- necrosis with sharp ends,
- yellow MM
- Fibrin between the bowels,
- hemorrhages
7
Q
Diagnosis?
A
Diagnosis:
- epidemiology,
- clinical signs,
- PM lesions
- Bacterium culture:
- mesentherial LN,
- gut
- o Detection of toxins
8
Q
Treatment?
A
Treatment:
- fast,
- no time for treatment, (litter mates serum)
9
Q
Prevention?
A
Prevention:
- penicillin (sow),
- vaccine
