Comparison of analyses to predict ruminal fibre degradability and indigestible fibre in temperate grass silages

JANČÍK, Filip, KOUKOLOVÁ, Veronika, HOMOLKA, Petr a HAMAN, Jiří. Comparison of analyses to predict ruminal fibre degradability and indigestible fibre in temperate grass silages. South African Journal of Animal Science, 2011, 41, 297-308. ISSN 0375-1589.
Kateg. publikaceVědecké publikace impaktované
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Abstrakt

The objectives of this study were to compare the ruminal degradability of neutral detergent fibre (NDF) and indigestible NDF (INDF) between silages (n = 24) originated from three different grass species, Dactylis glomerata L.; Festuca arundinacea L. and hybrid Felina – Lolium multiflorum L. × Festuca arundinacea S., and to create prediction equations for effective degradability of NDF (EDNDF), assuming ruminal solid outflow rates of 0.02 (low), 0.05 (medium) and 0.08/h (high), and INDF. The highest values for the potentially degradable fraction of NDF (b), EDNDF2, EDNDF5 and EDNDF8 (874, 560, 366 and 272 g/kg NDF, respectively) and the lowest for INDF (73.1 g/kg DM) were found for F. arundinacea. These parameters were significantly different from the hybrid, Felina, which presented the lowest rate of NDF degradation (c), EDNDF5 and EDNDF8 (0.033/h, 341 and 250 g/kg NDF, respectively).

ProjektUdržitelný rozvoj chovu hospodářských zvířat v evropském modelu multifunkčního zemědělství
OdděleníBiometrická jednotka, Výživa a krmení hospodářských zvířat