Directory UMM :Data Elmu:jurnal:A:Animal Feed Science and Technology:Vol84.Issue3-4.May2000:

Animal Feed Science and Technology
84 (2000) 229±242

Effect of silage dry matter content and rapeseed meal
supplementation on dairy cows
2. Rumen fermentation and digesta passage rate
T. Kokkonen*, M. Tuori, L. SyrjaÈlaÈ-Qvist
Department of Animal Science, University of Helsinki, P.O. Box 28, 00014 Helsinki, Finland
Received 15 June 1999; received in revised form 25 January 2000; accepted 10 February 2000

Abstract
The effects of direct-cut and wilted silage with or without rapeseed meal (RSM) supplementation
on rumen fermentation and digesta passage rates were studied in a 44 balanced Latin square
experiment with four multiparous cows. The dry matter (DM) and crude protein (CP)
degradabilities of silages were determined in sacco. RSM supplementation replaced 16% of the
oat±barley concentrate mixture. The daily concentrate amount was 10 kg. Silages were given ad
libitum. The effective degradabilities of dry matter and protein (EPD) were higher (p

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