Difference between revisions of "Contagious Footrot"
Jump to navigation
Jump to search
Line 1: | Line 1: | ||
− | |||
Caused by ''[[Dichelobacter nodosus]]''. | Caused by ''[[Dichelobacter nodosus]]''. | ||
Line 15: | Line 14: | ||
**Benign footrot (scald)- only interdigital ski affected, slight separation of heel horn | **Benign footrot (scald)- only interdigital ski affected, slight separation of heel horn | ||
***Mostly the type occuring in cattle | ***Mostly the type occuring in cattle | ||
− | [[Category:To_Do_- | + | [[Category:To_Do_-_Caz]] |
Revision as of 23:16, 4 August 2010
Caused by Dichelobacter nodosus.
- Contagious, economically important disease
- Wet pasture and hydrated stratum corneum leads to colonisation by Gram positive cocci and Arcanobacter pyogenes, followed by F. necrophorum; addition of D. nodosus causes footrot
- Can lead to loss of hoof
- Usually caused by Bacteroides nodosus together with Fusobacterium necrophorum
- Moisture and trauma allow B. nodosus to enter -> aids bacterial penetration of epidermis -> F. necrophorum invades -> necrosis and inflammation
- Grossly:
- Early lesions - red, moist, swollen, eroded interdigital skin
- Spreads to epidermal matrix of hoof -> separation of horn + malodorous exudate
- Regeneration attempted as germinal epithelium is not destroyed
- Chronic infections -> long , misshapen hoof
- Benign footrot (scald)- only interdigital ski affected, slight separation of heel horn
- Mostly the type occuring in cattle