Seroepidemiology of neosporosis in dairy cattle in Uruguay.
Vet Parasitol
; 120(1-2): 139-44, 2004 Feb 26.
Article
en En
| MEDLINE
| ID: mdl-15019151
ABSTRACT
A seroepidemiological survey of Neospora caninum was done in a dairy farm in Uruguay employing indirect fluorescent antibody test (IFAT). Sera from 217 cattle (155 cows, 31 heifers and 31 calves) were tested for N. caninum antibodies in July 2000 and it was found that abortions were significantly associated with the seropositivity of the cows by chi(2)-test (P = 0.025). The cows with an IFAT titre of 13200 were at a significantly higher risk of abortion than seronegative cows (P = 0.0013). Neospora organisms were detected in the brains of two aborted foetuses by immunohistochemical examination. The infection of N. caninum was considered postnatal because of the even distribution of seropositive cows (60%), low seroprevalence (20%) in calves and no significant correlation in the serostatus between calves and their dams (P = 0.43). A fitted binomial generalised linear model revealed that there was an increasing risk of abortion with increasing IFAT titre and increasing age between 2 and 6 years.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Enfermedades de los Bovinos
/
Complicaciones Parasitarias del Embarazo
/
Coccidiosis
/
Neospora
Tipo de estudio:
Risk_factors_studies
Límite:
Animals
/
Pregnancy
País/Región como asunto:
America do sul
/
Uruguay
Idioma:
En
Revista:
Vet Parasitol
Año:
2004
Tipo del documento:
Article
País de afiliación:
Uruguay