Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 345318
Title Rumen escape protein in grass and grass silage deterimened with a nylon bag and an enzymatic technique
Author(s) Cone, J.W.; Gelder, A.H. van; Mathijssen-Kamman, A.A.; Hindle, V.A.
Source Animal Feed Science and Technology 111 (2004)1-4. - ISSN 0377-8401 - p. 1 - 9.
DOI https://doi.org/10.1016/j.anifeedsci.2003.08.004
Department(s) ID - Voeding
Publication type Refereed Article in a scientific journal
Publication year 2004
Keyword(s) streptomyces-griseus - degradability - degradation - feeds - prediction - solubility - incubation
Abstract Rumen escape protein (REP) was determined for six grasses and 16 grass silages using a nylon bag technique and an in vitro technique using a proteolytic enzyme preparation of Streptomyces griseus. In vitro, the samples were incubated for 0, 1, 6 and 24 h. The highest correlation observed between percentage REP (%REP), determined with the nylon bag technique, and the in vitro undegradable fraction (U) occurred at 24 h of incubation (%U24; R2=0.71). Shorter incubation periods weakened the relationship (R2=0.46¿0.59). Percentage REP could be estimated from %U24 as %REP=3.3 (±4.02) + 1.31 (±0.19) *%U24. For the incubation periods investigated, results show that the highest relationship with %REP occurred with an incubation period of 24 h for these grass and grass silage samples.
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