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  • Title: Microbiological survey for Mycoplasma spp. in a contagious agalactia endemic area.
    Author: De la Fe C, Assunção P, Antunes T, Rosales RS, Poveda JB.
    Journal: Vet J; 2005 Sep; 170(2):257-9. PubMed ID: 15964226.
    Abstract:
    In this work, we report a microbiological survey for Mycoplasma spp. undertaken between 2001 and 2002 in 28 goat herds in Gran Canaria, Spain, an area where contagious agalactia is endemic. All herds were randomly selected and represented approximately 15.5% of the total goat population of the island. A variable number of milk, articular and auricular swab samples were collected from each flock and cultured in specific mycoplasma culture media. There was a total of 38.5% positive flocks from which 37 mycoplasma isolates were obtained. In contrast with previous data obtained in Spain, our results showed that the large colony variant of M. mycoides subsp. mycoides (Mmm LC) was the most commonly isolated agent associated with contagious agalactia. This species was isolated from 90% of the positive herds and accounted for 54.1% of all isolations. M. agalactiae was isolated from 40% of the positive herds (27% of all isolations) and in six herds M. arginini was isolated (18.7% of all isolations). No M. capricolum or M. putrefaciens strains were isolated. Mycoplasmas were isolated from 21 milk samples, 15 ear canals swabs and one articular sample. The association of several species was reported in several herds. These results are at variance with previous serological studies, which indicated a higher disease prevalence, and suggest that it could be necessary to use detection techniques such PCR to confirm the existence of contagious agalactia in goats.
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