SAAVEDRA Maria Lucila
Vaginal bacterial microflora modifications during the growth of
C. OTERO1, L. SAAVEDRA1, C. SILVA DE RUIZ2, O. WILDE3, A.R. HOLGADO1,2 AND
LETTERS IN APPLIED MICROBIOLOGY
Año: 2000 vol. 31 p. 251 - 254
The aim of this work was ®rst, to determine the predominant groups capable of colonizing the vagina and maintaining high numbers with time. The normal microbial ¯ora of the cow's vagina and its evolution from weaning to service was then studied using standard microbiological methods. The results show that the most dominant bacteria belong to the streptococci, followed by the staphylococci, with similar levels during the whole study period. Enterobacteriaceae and lactobacilli were present at very low levels, the latter increasing during the cow's growth, suggesting some kind of hormonal in¯uence. The results will allow the selection of micro-organisms with probiotic characteristics, classified as GRAS (Generally Regarded as Safe), to be used in the prevention of infections in the vaginal tract of cows, such as metritis, which produces delayed periods between partum and conception, and consequent economic losses.