Influence of vitamin E on organic matter fermentation, ruminal protein and fatty acid metabolism, protozoa concentrations and transfer of fatty acids

Schäfers, Stephanie; Meyer, Ulrich; von Soosten, Dirk; Krey, Britta; Hüther, Liane; Tröscher, Arnulf; Pelletier, Wolf; Kienberger, Hermine; Rychlik, Michael; Dänicke, Sven

doi:10.1111/jpn.12929

Zentren

Zurück
Zurück zum Anfang der Trefferliste
Dauerhafter Link zum angezeigten Objekt

Dokumenttyp:: Zeitschriftenaufsatz
Autor(en):: Schäfers, Stephanie; Meyer, Ulrich; von Soosten, Dirk; Krey, Britta; Hüther, Liane; Tröscher, Arnulf; Pelletier, Wolf; Kienberger, Hermine; Rychlik, Michael; Dänicke, Sven
Titel:: Influence of vitamin E on organic matter fermentation, ruminal protein and fatty acid metabolism, protozoa concentrations and transfer of fatty acids
Abstract:: Vitamin E (Vit. E) is discussed to influence ruminal biohydrogenation. The objective of this study was to investigate the influence of a Vit. E supplementation on rumen fermentation characteristics, ruminal microbial protein synthesis as well as ruminal organic matter fermentation. Furthermore, we aimed to investigate the influence of Vit. E supplementation on short‐chain fatty acids (SCFA) and protozoa concentrations in the rumen and, in addition, on transfer rates of middle‐chain and long‐chain fatty acids into the duodenum in lactating dairy cows. Eight rumen and duodenum fistulated German Holstein cows were assigned to either a group receiving 2,327 IU/d Vit. E (138.6 IU/kg DM DL‐α‐tocopherylacetate; n = 4) or a control group (23.1 IU/kg DM; n = 4). Neither ruminal protein synthesis nor organic matter fermentation was influenced by treatment. Vit. E did not act on the concentrations of short‐chain fatty acids and protozoa in rumen fluid. Duodenal flow of C13:0 (1.3 versus 0.2 g/d, p = 0.014) and iso‐C14:0 (1.0 versus 0.5 g/d, p = 0.050) was higher in the Vit. E group. We observed a trend for higher duodenal flows for C12:0 (1.6 versus 0.9 g/d, p = 0.095) and anteiso‐C15:0 (12.2 versus 8.9 g/d, p = 0.084). Transfer rate of C12:0 tended to be higher in the Vit. E group (125.61 versus 73.96, p = 0.082). No other transfer rates were affected by treatment. Further studies are necessary to investigate the influence of Vit. E on rumen microbiota and their fatty acid production as well as on the impact of different doses of Vit. E supplementation on variables of protein synthesis efficiency. «
Vitamin E (Vit. E) is discussed to influence ruminal biohydrogenation. The objective of this study was to investigate the influence of a Vit. E supplementation on rumen fermentation characteristics, ruminal microbial protein synthesis as well as ruminal organic matter fermentation. Furthermore, we aimed to investigate the influence of Vit. E supplementation on short‐chain fatty acids (SCFA) and protozoa concentrations in the rumen and, in addition, on transfer rates of middle‐chain and long‐chai... »
Stichworte:: dairy cow, duodenal fatty acids, nitrogen flow, rumen, vitamin E
Zeitschriftentitel:: Journal of Animal Physiology and Animal Nutrition
Jahr:: 2018
Volltext / DOI:: doi:10.1111/jpn.12929
Verlag / Institution:: Wiley
E-ISSN:: 0931-2439
Publikationsdatum:: 19.06.2018
BibTeX

Vorkommen:

mediaTUM Gesamtbestand Einrichtungen Schools TUM School of Life Sciences Zentren Bayerisches Zentrum für Biomolekulare Massenspektrometrie (BayBioMS)Jahr 2018

mediaTUM Gesamtbestand Hochschulbibliographie 2018 Fakultäten Wissenschaftszentrum Weihenstephan Bayerisches Zentrum für Biomolekulare Massenspektrometrie (BayBioMS)