FOOTROT

Question 1

(footrot)

1-3. What are the 3 key recommendations for preventing spread of footrot between sheeps?

Answer 1

1. manage/tx footrot and scald as one dz
2. early tx w/ injection of abx and topical spray with no foot trimming (most important)
3. separate affected sheep

Question 2

(the deaths)

1. caused by what?

how long do they persist?

2. main source of infection?

Answer 2

1. dichelobacter nodosus

7-10 days on pasutre, 6 weeks in hoof horn

2. other sheep (pass to ground before spreading though - sheep like walking in single file)

Question 3

(organism-environmental interaction)

1. route of infection?
2. first stage of dz involves what other bacteria?
3. if nodosus not present?
4. if present?

and then what?

5. can scald come from just fuso?

Answer 3

1. via skin between the claws
2. fuxobacterium necrophorum (in gut - likes warm and moist)
3. signs heal rapidly
4. can super infect with scald

footrot (nodosus eats away at tissue btwn hoof and horn)

5. yes (or fuso + low virulence nodosus)