In vitro ruminal fermentation of tanniniferous tropical plants: Plant-specific tannin effects and counteracting efficiency of PEG

Two experiments with the gas pressure transducer technique were conducted to investigate the effects of different types and levels of tannins. Forage samples were incubated in batch cultures together with rumen fluid and digestion medium in order to model rumen fermentation dynamics in vitro. In Exp...

Full description

Saved in:
Bibliographic Details
Published in:Animal feed science and technology 2008-10, Vol.146 (3), p.222-241
Main Authors: Tiemann, T.T., Avila, P., Ramírez, G., Lascano, C.E., Kreuzer, M., Hess, H.D.
Format: Article
Language:English
Subjects:
Biological and medical sciences
Brachiaria
Calliandra
Calliandra calothyrsus
Condensed tannins
Desmodium
Feed and pet food industries
Flemingia
Flemingia macrophylla
Food industries
forage
forage evaluation
Fundamental and applied biological sciences. Psychology
in vitro digestibility
in vitro digestion
In vitro fermentation
Leucaena
Leucaena leucocephala
PEG
polyethylene glycol
proanthocyanidins
rumen fermentation
rumen fluids
Urochloa humidicola
Vigna unguiculata
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Two experiments with the gas pressure transducer technique were conducted to investigate the effects of different types and levels of tannins. Forage samples were incubated in batch cultures together with rumen fluid and digestion medium in order to model rumen fermentation dynamics in vitro. In Experiment 1, graded levels (0, 25, 50, 75 and 100 mg/g of forage dry matter (DM)) of purified condensed tannins (CT) obtained from four tanniniferous tropical shrub legumes, Flemingia macrophylla, Leucaena leucocephala and two provenances of Calliandra calothyrsus (San Ramón and Patulul), were added to a CT-free mixture of the grass Brachiaria humidicola and the herbaceous legume Vigna unguiculata. The statistical models used for data evaluation included the two main effects (origin and level of CT) and their interaction. Apart from dose-dependent effects (P
ISSN:0377-8401
1873-2216
DOI:10.1016/j.anifeedsci.2007.12.009