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Unit 11: SRC & Pig Ortho: Sheep and Goat Conditions :sheep::goat: -…
Unit 11: SRC & Pig Ortho: Sheep and Goat Conditions :sheep::goat:
Foot scald/interdigital dermatitis)
just interdigital space affected
risk factors
Low BCS
higher production
interdigital trauma
macerated skin from wet conditions
CS
characteristic odor (Fusobacterium)
not contagious
treat with topical antiseptics
Foot rot
interdigital dermatitis has been exacerbated
Dichelobacter nodosus infection
produces an enzyme that can
dissolve hoof horn
undermine the sole
create abnormal hoof growth
risk factors
Low BCS
higher production
interdigital trauma
macerated skin from wet conditions
clinical signs
abnormal hoof growth
grazing on their knee
interdigital space
red
slimy exudate
foul odor
skin
ulcerated
necrotic
Contagious
Treatment
Topical and/or systemic antibiotics
clean and dry environment
Good foot trimming
Proper foot baths
antiseptic sprays
Biotin supplement
NSAIDs
if unresponsive to treatment = culled
Contagious digital dermatitis
caused by Treponema infections
risk factors
Low BCS
higher production
Environmental and management conditions
Clinical signs
proliferative or ulcerative lesions at coronary band level w
undermined hoof wall
avulsion of hoof capsule
Contagious
treatment
Topical tetracycline
digit amputation if severe
prognosis
Due to damage to the coronary band, hoof regrowth often abnormal
Flexural deformities - Treat as per foals
CAE/lentivirus
affects goats older than 6 months
CS
Chronic polyarthritis = most common sign
swelling of one or both carpal joints
4 clinical syndromes
arthritis
leukoencephalomyelitis
interstitial pneumonia
mastitis
Most animals asymptomatic
Waxing and waning arthritis
Diagnosis
Combining ELISA and PCR
repeated testing
Contagious
from doe to kid through milk
Venereal disease
horizontal transmission
No treatment is available
prognosis
potentially affect goats udder
fibrosis
firm udder (“hardbag”)
agalactia
Mycoplasma arthritis
affects Goats - most commonly large goat dairies
CS
polyarthritis
septicemia
mastitis
Contagious
Antibiotics usually do NOT resolve infection
Highly fatal
Prevent by feeding only pasteurized milk to kids
Chlamydial arthritis
Risk factors
Feedlot lambs and goats
3-5 month old lambs most common
Outbreaks occur a few weeks after lambs are introduced
Clinical signs
Febrile
reluctant to move
Multiple joints swollen
chlamydial conjunctivitis
elementary inclusion bodies on joint cytology
ELISA and PCR testing is confirmatory
Contagious
treatment
Antibiotic therapy
erythromycin
tylosin
tetracycline
Morbidity up to 80%, mortality very low
Most cases resolve without treatment in 10-14 days
Elbow issues - elbow osteoarthritis
risk factors
Older animals, exacerbated by CAEV
clinical signs
stiff gait
overgrown feet
Disease usually advanced by time of diagnosis
Treatment
NSAIDs
joint protectants
surgical arthrodesis
Spider lamb
hereditary chondrodysplasia
Suffolk and Hampsire breeds
Mutation in fibroblast growth factor receptor 3
seen at birth or develop within 1st 6 weeks of life
Arthrogryposis
Risk factors
Inherited
Suffolk and Corriedale sheep
autosomal recessive
Caused by Schmallenberg virus
Clinical signs
Congenital fixation of multiple joints
variety of teratogens