Anticorpos anti-pestivírus em caprinos e ovinos do sertão do Estado de Pernambuco, Brasil

Abstract

A major health problems seen in caprinovinocultura of Pernambuco is the occurrence of miscarriages and birth defects, occurring in an endemic form in the creations. The etiology of these disorders in small ruminants has not been fully resolved. The pestiviruses occur in cattle in several countries, including Brazil, Pernambuco state. To check the involvement of pestiviruses as one of the potential participants in the etiology of abortions was estimated, through a seroepidemiological survey, its prevalence in goats and sheep reared in the backwoods of Pernambuco State, the main producing region of the state. For this, were subjected to neutralization test in microplates, using strain-cytopathogenic BVDV-1 (NADL), 814 serum samples from goats and sheep. The prevalence was 10.89% (9.36 ≤ p ≤ 12.42) in goats and 6.98% (5.36 ≤ p ≤ 8.60) in sheep, with no statistically significant difference (χ2, P > 0.05) between species. The samples were stratified according to animal category (parent, player and young) and middle region from which the samples were from (Pernambucano Hinterland and Interior of the San Francisco Pernambucano) with no statistically significant difference (χ2, P> 0.05) between strata. According to information provided by breeders or handlers, abortion occurred in 70.96% (22/31) of farms where a questionnaire was investigative, and birth defects in 83.87% (26/31). The birth defects most commonly reported were: arthrogryposis of the forelimbs, and subsequent cervical agenesis of the hindlimbs, ceguerira, microphthalmia, agnathia, prognathism, cleft palate and malformations of the face. Additionally he was informed that goats and sheep are raised togetherwith cattle in 61.29% of farms. By the results we can conclude that the pestiviruses occur in small ruminants, regardless of age and sex in the Hinterlands Pernambucano of San Francisco and Pernambucano, in low prevalence.