2016
DOI: 10.1590/s1984-29612016055
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Abstract: The transplacental transmission is the primary route of Neospora caninum infection in bovine herds around the world. This study aimed to determine the frequency of transplacental transmission of the parasite in dairy cattle of Agreste region of Pernambuco through serological tests (IFAT and ELISA). Three hundred sixteen serum samples from cows and heifers and their offspring were analyzed. The transplacental transmission rate was 72.22% (13/18) for cows and 69.23% (9/13) for heifers by IFAT. ELISA test showed … Show more

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Cited by 7 publications
(4 citation statements)
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“…Cattle can be infected by ingesting oocysts of the parasite eliminated through feces of Canidae (horizontal transmission) or via the placenta (vertical transmission) (CERQUEIRA-CÉZAR et al, 2017). Transplacental transmission was incriminated the main N. caninum's route of transmission in cattle in the state of Pernambuco, northeastern Brazil, allowing the maintenance of this agent in production systems in the study region (RAMOS et al, 2016). In this sense, farms that use embryo recipients should take preventive measures to avoid economic losses and perpetuation of the parasite on farms.…”
Section: Discussionmentioning
confidence: 98%
“…Cattle can be infected by ingesting oocysts of the parasite eliminated through feces of Canidae (horizontal transmission) or via the placenta (vertical transmission) (CERQUEIRA-CÉZAR et al, 2017). Transplacental transmission was incriminated the main N. caninum's route of transmission in cattle in the state of Pernambuco, northeastern Brazil, allowing the maintenance of this agent in production systems in the study region (RAMOS et al, 2016). In this sense, farms that use embryo recipients should take preventive measures to avoid economic losses and perpetuation of the parasite on farms.…”
Section: Discussionmentioning
confidence: 98%
“…Neosporosis, a disease caused by the protozoan Neospora caninum, is a widespread problem in cattle and dogs (DUBEY, 2003) and is considered the main cause of abortions in cattle herds (ALMERÍA; LÓPEZ-GATIUS, 2015;. Vertical is the most frequent transmition route, where the pregnant cows transmit the protozoan to their fetuses, causing abortion or birth of congenitally infected offspring (RAMOS et al, 2016). In a study on aborted dairy cows in the state of Santa Catarina, 51.2% of the cows and 26.7% of the fetuses were positive for N. caninum (MACEDO et al, 2017).…”
Section: Introductionmentioning
confidence: 99%
“…A transmissão do parasita em bovinos ocorre por diferentes vias: horizontal ou transmissão pós-natal (pela ingestão de oocistos) e vertical ou transmissão congênita (transplacentária) (MCALLISTER et al, 1998;LÓPEZ-GATIUS, 2013). A transmissão congênita é altamente eficiente (75-100% das infecções maternas são transmitidas) e representa a principal via de infecção no campo (RAMOS et al, 2016), enquanto a transmissão após o nascimento raramente ocorre naturalmente (HALL;ELLIS, 2005). N. caninum pode ser transmitido por várias gerações ( TREES; WILLIAMS, 2005;ALMERÍA et al, 2010), levando à perdas relacionadas ao aborto fetal, morte neonatal, redução de fertilidade e doenças clínicas e subclínicas de bezerros (WILLIAMS et al, 2000).…”
Section: Infecção E Transmissão De N Caninumunclassified