Exhaled volatile fatty acids, ruminal methane emission and their diurnal patterns in lactating dairy cows
M.Z. Islam, S. Giannoukos, Räisänen, K. Wang, X. Ma, F. Wahl, R. Zenobi, M. Niu.
To date, the commonly used methods to assess rumen fermentation are invasive. Exhaled breath contains hundreds of volatile organic compounds (VOC) that can reflect animal physiological processes. In the present study, for the first time, we aimed to use a non-invasive metabolomics approach based on high-resolution mass spectrometry to identify rumen fermentation parameters in dairy cows
Analysis of volatile short-chain fatty acids in the gas phase using secondary electrospray ionization coupled to mass spectrometry
Cedric Wüthrich, Zhiyuan Fan, Guy Vergères, Fabian Wahl, Renato Zenobi and Stamatios Giannoukos.s
Quantification of metabolites present within exhaled breath is a major challenge for on-line breath analysis. It is also important for gauging the analytical performance, accuracy, reproducibility, reliability, and stability of the measuring technology. Short-chain fatty acids (SCFAs) are of high interest for nutrition and health.