PREVALÊNCIA DE MORMO E ANEMIA INFECCIOSA EQUINA EM ...

ABSTRACT
GLANDERS AND EQUINE INFECTIOUS ANEMIA PREVALENCE IN TRACTION
EQUIDS FROM DISTRITO FEDERAL
Horse breeding has a great economical and social importance in Brasil and some
diseases cause economic losses to the owners, mainly, because of the obligation to
eliminate the test positive animals, like glanders and equine infectious anemia (EIA).
With a view to determining the epidemiological situation of these diseases in traction
equids from Distrito Federal, it was estimate the prevalence and identified possible
potential risk factors associated to them. Three hundred and fifty owners were
randomly sampled and all equids from each random owner were sampled, totalizing
496 animals. Glander’s diagnostic was based in a screening with complement
fixation test (CFT) and the positive animals were submitted to two consecutives
mallein tests with the interval of 45 days. None of the animals was glanders positive
and was observed that, if the disease exists in DF, there is a probability of 95% that
the prevalence is lower than 0,85%. The EIA’s diagnostic was realized using the agar
gel immunodiffusion test (AGID). The prevalence was estimated at 2.29% confidence
interval (CI) 95% = [1.01% - 4.2%] for owners testing positive and 1.81% confidence
interval (CI) 95% = [0.55% - 3.07%] for horses. This study demonstrated that both
diseases are controlled in traction equids population, however, the official service
should keep active vigilance with the objective of prevent new glander’s focus and
should effort to reduce the EIA’s prevalence in DF demanding periodic tests of these
animals and improving the entrance control of equídeos originary from areas where
the EIA’s prevalence is not known.
Keywords: traction equids, Distrito Federal, prevalence, glanders, equine infectious
anemia.
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