Soroprevalência de agalaxia contagiosa e vacinação experimental em caprinos.

Abstract

Two studies were conducted to determine the prevalence of contagious agalactia and evaluate the immune response in goats vaccinated. The prevalence was performed in 544 blood serum samples obtained from 20 dairy herds distributed in seven counties of western microrregion Cariri Paraiba for detecting antibodies to Mycoplasma agalactiae by ELISA. For bacterial isolation, 62 milk samples were collected from animals with mastitis and seeded in medium Hayfkick modified. Of the 544 samples, 307 (56.43%) showed positive results in serology. The rate of seropositive animals ranged from 10.0% to 100% by property. There was no isolation of Mycoplasma agalactiae in milk samples cultured. The animals immunized with vaccine containing oil adjuvant showed statistically significant levels of antibodies (p <0.05) and persistent when compared to animals vaccinated with the aqueous vaccine. It can be concluded that the contagious agalactia is disseminated in the microrregion and the use of oily vaccine stimulates the production of antibodies against Mycoplasma agalactiae.