Staff Publications

Staff Publications

  • external user (warningwarning)
  • Log in as
  • language uk
  • About

    '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.

    We have a manual that explains all the features 

Record number 509056
Title Variation between individual cows in in situ rumen degradation characteristics of maize and grass silages
Author(s) Ali, M.; Cone, J.W.; Duinkerken, G. van; Klop, A.; Blok, M.C.; Bruinenberg, M.; Khan, N.A.; Hendriks, W.H.
Source NJAS Wageningen Journal of Life Sciences 78 (2016). - ISSN 1573-5214 - p. 167 - 173.
DOI http://dx.doi.org/10.1016/j.njas.2016.05.009
Department(s) Animal Nutrition
WIAS
LR - Animal Nutrition
Publication type Refereed Article in a scientific journal
Publication year 2016
Keyword(s) Effective rumen degradability - Grass silage - Maize silage - Rumen degradation characteristics - Variation between cows
Abstract

Different numbers of animals have been used in different studies to cover the variation between individual animals in in situ rumen degradation characteristics of maize and grass silages. The objective of this study was to determine whether three cows are sufficient or not to cover the variation between individual cows in in situ rumen degradation characteristics of dry matter (DM), organic matter (OM), crude protein (CP), starch and neutral detergent fibre (NDF) for maize and grass silages. Fifteen maize and 15 grass silage samples, with a broad range in chemical composition, were selected. The maize and grass silage samples were incubated in the rumen for 2, 4, 8, 16, 32, 72 and 336 h, using the nylon bag technique. Three cows were used for nylon bag incubation of maize silages and three other cows for grass silages. The variation between individual cows was found significant (P <0.05) for degradation rate (kd) of DM, OM and CP, and the effective rumen degradation (ED) of DM and CP of maize silages whereas non-significant (P > 0.05) differences were found for all other parameters of DM, OM, CP, starch and NDF. The variation between individual cows was found non-significant (P > 0.05) for rumen undegradable fraction (U), potentially rumen degradable fraction (D), kd and ED of DM, OM, CP and NDF of grass silages. The results of this study indicate that the use of three cows for nylon bag incubations of grass silages is sufficient whereas the use of three cows for nylon bag incubations of maize silages is not sufficient to cover variation between the individual cows.

Comments
There are no comments yet. You can post the first one!
Post a comment
 
Please log in to use this service. Login as Wageningen University & Research user or guest user in upper right hand corner of this page.