Mejía Delgado, ElvaCossta Olivera, RogerCórdova Aguilar, Jorge Luis2017-06-072017-06-072014https://hdl.handle.net/20.500.14414/7926The intestinal microbiota is the bacterial variety that live in the gastrointestinal tract, the colonization begins immediately at birth and is modulated by numerous factors. Objective: Determine the variation in the intestinal microbiota of breastfed newborns for the 1st, 14th and 27th day old. Materials and Methods: Prospective, longitudinal and descriptive study. We was obtained stool sample the 1st, 14th and 27th day post-partum of 18 newborn identifying type and CUF/ml bacterial. Results: Identified primarily Lactobacillus sp., S. coagulasa negative, E. coli, Bifidobacterium sp., S. aureus. The 1st, 14th and 27th day post-partum were identified: Anaerobic (7.04 ± 0.8 log CUF/ml, 10.13 ± 0.82 log CUF/ml y 12.22 ± 0.86 log CUF/ml respectively), Micro-anaerobic (7.67 ± 0.67 log CUF/ml, 9.76 ± 0.9 log CUF/ml, 11.55 ± 0.79 log CUF/ml respectively), Lactobacillus (5.52 ± 0.8 log CUF/ml, 7.42 ± 0.76 log CUF/ml, 8.59 ± 0.58 log CUF/ml respectively). Conclusion: The intestinal microbiote varies according bacterial species and CFU/ml, gradually increasing the 1st, 14th and 27th day post-partum; the 1st day dominated microanaerobios, 14th and 27th day post-partum strict anaerobesLa microbiota intestinal es la variedad bacteriana que habita en el tracto digestivo, inician la colonización después del nacimiento, es modulada por numerosos factores. Objetivo: Conocer la variación de la microbiota intestinal de los neonatos alimentados por lactancia materna exclusiva al 1er, 14to y 27mo día post-parto. Materiales y métodos: Estudio prospectivo, longitudinal y descriptivo. Se obtuvo muestra de heces el 1er, 14to y 27mo día post-parto de 18 neonatos; identificando tipo y UFC/ml bacteriano. Resultados: Se identificaron principalmente: Lactobacillus sp., S. coagulasa negativo, E. coli, Bifidobacterium sp., S. aureus. El 1er, 14to y 27mo día post-parto se identificaron mayormente: Anaerobios (7.04 ± 0.8 log UFC/ml, 10.13 ± 0.82 log UFC/ml y 12.22 ± 0.86 log UFC/ml respectivamente), Microanaerobios: (7.67 ± 0.67 log UFC/ml, 9.76 ± 0.9 log UFC/ml, 11.55 ± 0.79 log UFC/ml respectivamente), Lactobacillus (5.52 ± 0.8 log UFC/ml, 7.42 ± 0.76 log UFC/ml, 8.59 ± 0.58 log UFC/ml respectivamente). Conclusión: La microbiota intestinal varía según especie bacteriana y UFC, aumentando progresivamente el 1er, 14to y 27mo día post-parto; el 1er día predominaron microanaerobios, el 14to y 27mo día post-parto anaerobios estrictosspainfo:eu-repo/semantics/openAccessneonatos, lactancia materna exclusiva, Microbiota intestinalinfo:eu-repo/semantics/bachelorThesis