Ruminal protein metabolites and fibre fermentation
differ among nonfibre carbohydrate and protein
sources

Effects of nonfibre carbohydrate source (NFC) and protein degradability (RDP) in vivo on concentrations of NH₃, amino acids, and branch chain volatile fatty acids (BCVFA) in ruminal fluid, and on in situ disappearance of neutral detergent fibre (NDF) were evaluated. Treatment differences noted in BCVFA and amino acid concentrations suggest that ruminal protein digestion or use differs by NFC source. NFC source and the interaction of NFC × RDP affected in situ NDF disappearance; the effects did not appear to purely pH related. In situ NDF disappearance provided relative, not absolute, evaluation of NDF digestibility.

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1230-1388

Assigning DOI numbers, introducing articles from supplements and recent publications to POL-index database, maintaining anti-plagiarism detection, electronic system to proceed manuscripts and webpage of the Journal with interactive pdf files, and language correction of manuscripts published in Journal of Animal and Feed Sciences are financed in the years 2018–2019 by the Ministry of Science and Higher Education from the funds for science popularization activities, Agreement No. 631/P-DUN/2018.