Sheep Lameness

Question 1

Name 3 diseases that cause lameness and are contagious.

Answer 1

Interdigital dermatitis
Foot Rot
Contagious Ovine Digital Dermatitis (CODD)

Question 2

Name 6 things that can control lameness in sheep (generally)

Answer 2

Footbathing 
Abx
Biosecurity
Vaccination
Foot-trimming
Culling

Question 3

What is another name for interdigital dermatitis?

Answer 3

Scald

Question 4

Tx of interdigital dermatitis?

Answer 4

Oxytet foot spray/ bathing / lime

Question 5

Risk factors for foot rot?

Answer 5

Chronic carriers
rainfall, temperature (high), stocking rates, genetics, flock turnover

persists in env for 10-14d

Question 6

Tx footrot?

Answer 6

Prompt! (w/in 3 days)

Systemic, long acting abx
Footbathing (zinc sulphate x 3 weeks)
Separate groups
Vaccinate! (remember moxidectin/shearing rxn)
Cull
Quarantine

Question 7

5-point plan for control of foot rot?

Answer 7

1) biosecurity
2) culling
3) separating
4) foot bathing
5) vaccination

Question 8

CS of contagious ovine digital dermatitis?

Answer 8

very painful!
initial lesion @ coronary band, rapid spread - separates hoof

whole hoof loose, may slough

Question 9

CODD tx?

Answer 9

Injection w/ macrolids, tetracycline, or Amoxi

Abx footbath

Question 10

What are the 2 syndromes of erysipelas?

Answer 10

1) chronic polyarthritis in young lambs

2) acute post-dipping (or pot muddy pen) - infective arthritis

Question 11

CS of Erysipelas infection?

Answer 11

Severe lameness, hock and carpal joints, heat and pain, proliferative synovitis

Question 12

Dx of erysipelas?

Answer 12

joint aspirate smear and culture

PM

Question 13

Tx and prevention of erysipelas?

Answer 13

Tx = penicillin and NSAIDs
Prevention = dip management / vaccination

Question 14

What is the most common cause of foot lesions in individual sheep (vs. group problems)?

Answer 14

White line disease (shelly hoof)

Question 15

Tx for shelly hoof?

Answer 15

(white line disease)

HOOF TRIMMING