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    Measurement of oro-cecal transit time in LPS-treated pigs fed high and low fiber diets using the lactose-13C-ureide test in breath and saliva samples (2025)

    Art
    Zeitschriftenartikel / wissenschaftlicher Beitrag
    Autoren
    Cavalleri, Mariagrazia
    Sciascia, Quentin L.
    Görs, Solvig
    Vernunft, Andreas
    Reyer, Henry
    Wimmers, Klaus
    Zentek, Jürgen (WE 4)
    Kluess, Jeannette
    Dänicke, Sven
    Metges, Cornelia C.
    Quelle
    Journal of agricultural and food chemistry : a publication of the American Chemical Society
    Bandzählung: 73
    Heftzählung: 17
    Seiten: 10304 – 10315
    ISSN: 0021-8561
    Sprache
    Englisch
    Verweise
    URL (Volltext): https://pubs.acs.org/doi/10.1021/acs.jafc.5c00534
    DOI: 10.1021/acs.jafc.5c00534
    Pubmed: 40234424
    Kontakt
    Institut für Tierernährung

    Königin-Luise-Str. 49
    14195 Berlin
    +49 30 838 52256
    tierernaehrung@vetmed.fu-berlin.de

    Abstract / Zusammenfassung

    The lactose-13C-ureide (L13CU) test, used in humans to measure oro-cecal transit time (OCTT) in breath CO2, was assessed for its suitability in pigs as a noninvasive alternative to intestinal cannulation. The OCTT was determined with the L13CU test in breath and saliva samples when pigs were fed low or high dietary fiber (DF) (low fiber, 2.8% DF; high fiber 6.5% DF) diets, and 24 h after an i.m. injection with either lipopolysaccharide (LPS) or NaCl. The OCTT measured in breath was longer in LF-LPS than in LF-NaCl and HF-LPS groups (3.4 vs 2.9 h; p < 0.05). Additionally, LPS prolonged the OCTT of pigs, and DF prevented this effect. 90 % of OCTT estimates measured in saliva and breath CO2 did not differ. We conclude that the L13CU breath test is useful for determining OCTT in pigs; saliva is generally suitable as a sample matrix for OCTT, but its use requires further validation.