La resistencia de microorganismos patógenos a los antibióticos y la posible presencia de residuos de los mismos en los productos de origen animal, en particular de cerdos, son motivos de preocupación creciente en la salud pública. Una alternativa para reducir o eliminar el uso de estos antibióticos sería la administración, en la dieta, de bacterias probióticas nativas. En esta vía, un análisis metagenómico permitió identificar 174 especies de bacterias, con 17 % relacionadas al Orden Lactobacillales, 7.87 % en intestino delgado, 17 % en intestino grueso y 24.24 % en heces de cerdos, Sus escrofa. Varias cepas bacterianas ácido lácticas han sido aisladas e identificadas molecularmente, proveniente del estómago (3), intestino delgado (4), intestino grueso (3) y heces (2), conduciendo a un cepario de siete cepas. Caracterizaciones moleculares mediante la espectrometría de mas...

The composition and abundance of the bacterial microbiota in three portions of the gastrointestinal tract of a piglet, in the balanced feed and in biological ensilages prepared with residues of aquaculture origin were evaluated by metagenomic analysis. The DNA of the samples was extracted, and sequenced. The greatest bacterial diversity was in the balanced feed (44.7%), with the predominance of Candidatus phytoplasma surgarcane. In the biological silage predominated Lactobacillus casei and Lactococcus lactis. The existing diversity was similar between silage and the concentrate feed. Similarities were found between the bacteria of the three gastrointestinal regions (L. ultunensis, Selenomonas bovis, Prevotella copri, Enterococcus lactis y Campylobacter sp). In the stomach predominated Helicobacter rappini and Campylobacter coli, in the small intestine Selenomonas bovis and Lactobacillus ...

The composition and abundance of the bacterial microbiota in three portions of the gastrointestinal tract of a piglet, in the balanced feed and in biological ensilages prepared with residues of aquaculture origin were evaluated by metagenomic analysis. The DNA of the samples was extracted, and sequenced. The greatest bacterial diversity was in the balanced feed (44.7%), with the predominance of Candidatus phytoplasma surgarcane. In the biological silage predominated Lactobacillus casei and Lactococcus lactis. The existing diversity was similar between silage and the concentrate feed. Similarities were found between the bacteria of the three gastrointestinal regions (L. ultunensis, Selenomonas bovis, Prevotella copri, Enterococcus lactis y Campylobacter sp). In the stomach predominated Helicobacter rappini and Campylobacter coli, in the small intestine Selenomonas bovis and Lactobacillus ...