Diseases and causes of death among alpacas in Sweden: a retrospective study
2019
Background Due to increasing popularity in Sweden during the last decade, alpacas are frequently encountered by practising veterinarians and pathologists. Knowledge regarding their health and diseases under Swedish conditions is, however, limited. Objectives To improve knowledge about the health of alpacas in Sweden by collecting information on diseases and health status. Design A retrospective study was made of 93 necropsies conducted on alpacas in Sweden during the period 2001–2013. Setting Data were obtained from the two major
veterinary pathologycentres in Sweden. The alpacas were
hobbyor farm animals and they were submitted by veterinarians in local practices or at a national animal healthcare organisation. Results The digestive system was most frequently affected (29 per
cent), with parasitic gastroenteritis (17 per
cent) and hepatic disease being especially prevalent (15 per
centfascioliasis and 7 per
centhepatitis). Cardiovascular conditions (9 per
cent), systemic diseases (7 per
cent) and perinatal deaths were also common, including abortions (10 per
cent) and fatal septicaemia (4 per
cent). Wasting/
emaciationwas a frequent finding (26 per
cent). Other diagnoses included dermatitis (8 per
cent), diseases of the central nervous system (8 per
cent), traumatic injuries (7 per
cent), neoplasia (5 per
cent), pneumonia (5 per
cent) and nephritis (3 per
cent). Conclusions This study identified areas of concern regarding diagnostic and pathological procedures, for which specific measures have been recommended. One particular cause for concern was the number of deaths from
emaciationin
weanlingalpacas during late winter or early spring. For adult alpacas, infectious and non-infectious causes of death were approximately equally frequent. Many of the diseases were considered clinically acute but pathology often showed them to be chronic conditions that had eventually deteriorated and presented as acute cases in the late stages. This study revealed similarities in the health/disease status reported in other European countries and in North America. The results can be used by alpaca keepers and veterinary practitioners to improve management, diagnosis and treatment of alpacas.
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