Please enable JavaScript.
Coggle requires JavaScript to display documents.
Clostridial diseases & general husbandry (Vaccination programs (5-in-1…
Clostridial diseases & general husbandry
Enterotoxaemia
Overgrowth of C. perfringens type D in GIT
Systemic absorption of epsilon toxin (diarrhoea, convulsions, death)
Associated with rapid diet changes
Tetanus
C. tetani spores enter wounds and produce TeNT (blocks inhibitory NT release)
Spastic paralysis ("menace" grin)
Black disease
C. novyi causes necrotic hepatitis after ingestion
Liver fluke infestation predisposes
Malignant oedema
C. septicum in soil contaminates wounds, leading to systemic toxin release
Blackleg
C. chauvoei in soil ingested
Necrotising myositis/systemic damage
Bacillary haemoglobinria
C. haemolytica - more common in cattle than sheep
Vaccination programs
5-in-1: initial injection, then booster 4-6 wks later. Annual boosters required. Covers 5 main clostridials (as above minus bacillary haemoglobinuria).
6-in-1: major clostridials and caseous lymphadenitis.
7-in-1: major clostridials and leptospirosis.
8-in-1: major clostridials, lamb dysentry, bacillary haemoglobinuria and haemorrhagic enterotoxaemia.
Ewes vaccinated 4 wks prior to lambing, then lambs vaccinated at marking (2-3 mths).
Scabby mouth: live vaccine, only given where disease is/has been present.
Gudair (OJD): 4-16 wks, or any age.
Eryvac (E. rhusiopathiae): causes arthritis
Anthrax (requires CVO approval)
Barber's pole worm: used in conjunction with drenching
Drenching programs
NSW non-seasonal rainfall zones
FEC march-october, pre-lambing, prior to management activities, 6-8 wks following drenching.
Drench in late spring (first summer drench).
Drench lambs at weaning (may coincide with first summer drench). Autumn lambs may need an additional drench 8 wks after weaning.
Drench al, introduced sheep with a combo of at least 4 unrelated actives with at least one being monepantel/derquantel
Drench sheep showing obvious signs of worm burden