Effects of phenolic acid structures on meadow hay digestibility

The objectives were to evaluate effects of phenolic acid content and composition on the digestibility of six meadow hays from Northern Portugal. Digestibility was assessed by gas production, in vitro and in situ degradation methods. Four cows fed diets at energy maintenance were used for in situ inc...

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Veröffentlicht in:	Animal feed science and technology 2007-08, Vol.136 (3), p.297-311
Hauptverfasser:	Rodrigues, M.A.M., Guedes, C.M., Cone, J.W., van Gelder, A.H., Ferreira, L.M.M., Sequeira, C.A.
Format:	Artikel
Sprache:	eng
Schlagworte:	Biological and medical sciences cell wall components chemical interactions cow feeding cows crosslinking degradation Digestibility Feed and pet food industries ferulic acid Food industries forage forage quality Fundamental and applied biological sciences. Psychology gas production (biological) grasslands hay in vitro digestibility in vivo studies lignans Lignin Meadow hays p-coumaric acid Phenolic acids reaction kinetics rumen fermentation
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Beschreibung
Zusammenfassung:	The objectives were to evaluate effects of phenolic acid content and composition on the digestibility of six meadow hays from Northern Portugal. Digestibility was assessed by gas production, in vitro and in situ degradation methods. Four cows fed diets at energy maintenance were used for in situ incubations and to provide rumen fluid for in vitro incubations. There were no relationships between phenolic acid concentrations and other cell wall components. The dry matter (DM) potential degradation ( a + b) was positively related to the etherified fractions of ferulic acid (FAeth, P=0.012) and p-coumaric acid (PCAeth, P
ISSN:	0377-8401 1873-2216
DOI:	10.1016/j.anifeedsci.2006.09.009