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ADVANCE NOTES ON RESEARCH
Author(s) -
Alexander R. H.,
McGowan Mary
Publication year - 1961
Publication title -
grass and forage science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.716
H-Index - 56
eISSN - 1365-2494
pISSN - 0142-5242
DOI - 10.1111/j.1365-2494.1961.tb00253.x
Subject(s) - rumen , centrifugation , filtration (mathematics) , dry matter , centrifuge , organic matter , chemistry , chromatography , filter paper , pepsin , zoology , pulp and paper industry , biology , food science , mathematics , biochemistry , enzyme , physics , fermentation , statistics , organic chemistry , nuclear physics , engineering
Tilley et al . (1) have clearly demonstrated that their rumen liquor and pepsin procedure for the determination of digestibility of herbage is useful and precise. The method has, however, the disadvantage that the equipment required for the centrifugation stages is relatively expensive and, moreover, when using one centrifuge only the procedure is somewhat tedious. The method outlined below completely eliminates centrifugation; the rumen‐liquor stage is terminated by acidification and the residues from the pepsin stage is recovered by filtration, using a filter aid. Digestible dry matter or digestible organic matter may be determined; results for the former estimation on thirteen samples already examined at Hurley have given satisfactory results.