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Impact of chestnut and quebracho tannins on rumen microbiota of bovines

Colaborador(es): Díaz Carrasco, Juan María. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patobiología. Castelar, Argentina. Instituto Nacional Tecnología Agropecuaria (INTA). Centro Nacional de Investigaciones Agropecuarias (CNIA). Buenos Aires, Argentina. CONICET. Buenos Aires, Argentina | Cabral, Claudio. Animal Nutrition. Silvateam, Indunor, Buenos Aires, Argentina | Redondo, Leandro Martín. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patobiología. Castelar, Argentina. Instituto Nacional Tecnología Agropecuaria (INTA). Centro Nacional de Investigaciones Agropecuarias (CNIA). Buenos Aires, Argentina. CONICET. Buenos Aires, Argentina | Pin Viso, Natalia Daniela. CONICET. Buenos Aires, Argentina. Instituto Nacional Tecnología Agropecuaria (INTA). Instituto de Biotecnología. Buenos Aires, Argentina. Instituto Nacional Tecnología Agropecuaria (INTA). Centro Nacional de Investigaciones Agropecuarias (CNIA). Buenos Aires, Argentina | Colombatto, Darío. CONICET. Buenos Aires, Argentina. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Animal. Buenos Aires, Argentina | Farber, Marisa Diana. CONICET. Buenos Aires, Argentina. Instituto Nacional Tecnología Agropecuaria (INTA). Instituto de Biotecnología. Buenos Aires, Argentina. Instituto Nacional Tecnología Agropecuaria (INTA). Centro Nacional de Investigaciones Agropecuarias (CNIA). Buenos Aires, Argentina | Fernández Miyakawa, Mariano Enrique. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patobiología. Castelar, Argentina. Instituto Nacional Tecnología Agropecuaria (INTA). Centro Nacional de Investigaciones Agropecuarias (CNIA). Buenos Aires, Argentina. CONICET. Buenos Aires, Argentina.
ISSN: 2314-6133.Tipo de material: Artículos y capítulos. Recurso electrónico.Tema(s): RNA 16S | TANNIN DERIVATIVE | UREASE | ANIMAL EXPERIMENT | BACTERIAL GROWTH | BACTEROIDETES | CASTANEA SATIVA | CHEMICAL COMPOSITION | CHESTNUT | CLINICAL ASSESSMENT | CONTROLLED STUDY | DIET SUPPLEMENTATION | DIET THERAPY | FIRMICUTES | GENE SEQUENCE | HARVESTING | HIGH THROUGHPUT SEQUENCING | HOLSTEIN CATTLE | IN VIVO STUDY | METHANOGENIC ARCHAEON | MICROBIAL COMMUNITY | NON HUMAN | PH | PHYSIOLOGICAL PROCESS | POPULATION STRUCTURE | PREVOTELLA | QUEBRACHO | RUMEN MICROORGANISM | RUMINOCOCCACEA | ESCHINOPSIS LORENTZII | TREE | Recursos en línea: Haga clic para acceso en línea | LINK AL EDITOR En: BioMed Research International ID 9610810 (2017), p.1-11, tbls, grafs.Resumen: The use of phytogenic dietary additives is being evaluated as a means to improve animal productivity. The effect of tannins seems to be the influence not only directly on the digestive process through binding of dietary proteins but also indirectly over their effects on gastrointestinal microbiota. High - throughput sequencing of 16S rRNA gene was used to analyze the impact of dietary supplementation with a blend of chestnut and quebracho tannins on the rumen microbiota of Holstein steers. Bacterial richness was lower in tannins treated animals, while the overall population structure of rumen microbiota was not significantly disturbed by tannins. Theratio of the phyla Firmicutes and Bacteroidetes, a parameter associated with energy harvesting function, was increased in tannins supplemented animals, essentially due to the selective growth of Ruminococcaceae over members of genus Prevotella. Fibrolytic, amylolytic, and ureolytic bacterial communities in the rumen were altered by tannins, whilemethanogenic archaea were reduced. Furthermore, ruminal pH was significantly higher in animals supplemented with tannins than in the control group, while urease activity exhibited the opposite pattern. Further work is necessary to assess the relation between tannins impact on rumen microbiota and alteration of rumen fermentation parameters associated with bovine performance.
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The use of phytogenic dietary additives is being evaluated as a means to improve animal productivity. The effect of tannins seems to be the influence not only directly on the digestive process through binding of dietary proteins but also indirectly over their effects on gastrointestinal microbiota. High - throughput sequencing of 16S rRNA gene was used to analyze the impact of dietary supplementation with a blend of chestnut and quebracho tannins on the rumen microbiota of Holstein steers. Bacterial richness was lower in tannins treated animals, while the overall population structure of rumen microbiota was not significantly disturbed by tannins. Theratio of the phyla Firmicutes and Bacteroidetes, a parameter associated with energy harvesting function, was increased in tannins supplemented animals, essentially due to the selective growth of Ruminococcaceae over members of genus Prevotella. Fibrolytic, amylolytic, and ureolytic bacterial communities in the rumen were altered by tannins, whilemethanogenic archaea were reduced. Furthermore, ruminal pH was significantly higher in animals supplemented with tannins than in the control group, while urease activity exhibited the opposite pattern. Further work is necessary to assess the relation between tannins impact on rumen microbiota and alteration of rumen fermentation parameters associated with bovine performance.

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