VLA Miscellaneous Exotic and Farmed
Species Expert Group
South American Camelids
Veterinary Information Sheet
Aide memoire for the diagnosis of
common disease syndromes
These differential diagnoses are not an exclusive list.
Other conditions may be involved and the results of
any tests must take into account the history including
feeding regime and clinical signs.
Condition Main differential diagnoses Samples
Skin disease
Parasites (Chorioptes, Psoroptes
scabies, Demodex, harvest mites, lice)
Abscesses / CLA
Dermatophytosis / ringworm
Dermatophilus
Orf (uncommon)
Neoplasia
*Superficial and deep skin scrapes and hair plucks
from number of sites especially interdigital areas
* Deep swab or tissue sample by biopsy for culture
Hair pluck and skin scale for culture
* Fresh moist crust and scale with hair pluck for
cytology and culture
Formalin-fixed and fresh skin tissue samples for
histopathology and electron microscopy
Formalin-fixed skin tissue
Abortion
Salmonellosis, Campylobacter, BVD,
neosporosis, opportunist bacteria,
Chlamydophila, toxoplasmosis,
leptospirosis, Brucella, infectious
causes are not common
In all cases: fetus, placenta and maternal serum
Ill-thrift / weight loss
Dentition
BVD
Trace element deficiency (rare except
copper)
Malnutrition
Worms / coccidia
Liver fluke
TB
Johne's disease (uncommon)
Clinical examination (radiography)
Plasma / serum for PCR and SNT respectively
Plasma and serum (EDTA for haematology with Cu)
Assess diet and history - serum, EDTA, heparin,
Ox-F bloods may help to rule out other primary
conditions
Faeces
Faeces and serum for liver enzymes
Discharging sinus from subcutaneous lymph node;
carcase – ZN, histopathology, culture
Faeces (ZN smear, culture & PCR) and serum
(AGIDT - Limited sensitivity)
Alimentary Disease
Young stock
Coccidia, parasitic gastroenteritis (PGE),
cryptosporidia, rotavirus, coronavirus,
Salmonella, E. coli
Faeces for routine parasitology and culture as
appropriate
Adults
Liver fluke / PGE / coccidia
Gastric ulcer
Hepatic lipidosis
Faeces (and serum for liver enzymes) for
parasitology
No specific tests. Faeces, serum, EDTA, heparin
and Ox-F bloods to rule out other disease
Carcase, liver histopathology, serum, Ox-F blood
June 2010
This link can be viewed from the
http://tbinalpacas.blogspot.com/2010/08/diagnostic-tests-available-at-vla.html
i congratulate the Tb group in Uk, who keep everyone well informed.
But vitally important is to reconise which diseases Alpacas are susceptible.
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