10572 1 archive 3892 disk0/00/01/05/72 2007-04-04 2009-08-20 14:35:51 2009-08-20 14:35:51 conference_item show 0 en no_bioforsk_arctic no-UMB 3-5 April 2006 12th International Symposium of Forage Conservation Brno, Czeck Republic never 0 TRUE paper Adler Steffen A. Randby Åshild T. pub 1dairy 3feeding organic, dairy production, silage harvesting time, NORTHDAIRY Early cut organic grass silage (roundbales) was compared with silage harvested 17 days (180 daydegrees) later in a continuous production experiment with 32 Norwegian Red dairy cows in early lactation. The experiment was carried out in Bodø, Norway. A half of the cows received a feed ration with 40% concentrates (H), and the other half 10% (L) on an annual energy basis. Feeding early cut silage of an organic ley increased feed intake, milk yield and milk protein concentration compared with normal cut. Left-overs of concentrates were a problem in the experiment and ways to improve the palatability of on farm produced cereals have to be developed. Early cut crop yields were only about half of the crop yield at normal cut. Therefore early cut may only be recommended to farmers in northern Norway when acerage is not a limiting factor. 2006 published Jambor V. Jamborová S. Vosynková B. Procházka P. Vosynková D. Kumprechtová D. Driehuis, F. and P.G. Van Wikselaar. 1996. The occurrence of alcoholic fermentation in high dry matter grass silage. XIth International Silage Conference, Aberystwyth, Wales, p. 254-255. Rinne, M., Jaakkola S., Kaustell K., Heikkilä T. and P. Huhtanen. 1999. Silages harvested at different stages of grass growth v. concentrate foods as energy and protein sources in milk production. Anim. Sci. 69:251–263. Thuen, E. 2006. Personal communication. Ås, Norway, 31 January, 2006. Tel. +47 64 96 51 78. public 140-142 7621 1 10572 1 application/pdf en public

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