Estimating fractional rate of NDF degradation from
 in vivo  digestibility

Fractional rate of degradation (k_d) of potential degradable NDF (dNDF) was estimated based on in situ degradation profiles. In situ values were compared to values for k_d which were calculated based on in vivo NDF digestibility and dNDF concentration for 61 forage samples including both young and very mature grasses and legumes. The calculation only failed for three samples, and in situ estimates correlated reasonably well to calculated values. Calculated k_d for dNDF has a large potential for use in practice as a low resource method.

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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.