Publikasjoner
NIBIOs ansatte publiserer flere hundre vitenskapelige artikler og forskningsrapporter hvert år. Her finner du referanser og lenker til publikasjoner og andre forsknings- og formidlingsaktiviteter. Samlingen oppdateres løpende med både nytt og historisk materiale. For mer informasjon om NIBIOs publikasjoner, besøk NIBIOs bibliotek.
2006
Forfattere
Steffen Adler Åshild T. RandbySammendrag
Three continuous production experiments and three short term cross over experiments were carried out in Northern Norway to investigate different feeding strategies for dairy cows in organic farming. This paper focuses on the effects on sensoric milk quality. Half of the 32 Norwegian red dairy cows in the production experiments were fed 40% (HC) concentrates (on energy basis per year) and the other half 10% (LC). Twelve cows (HC) participated in the short term cross over experiments. The experimental factors in the continuous production experiments were barley preservation method (P1), grass silage maturity (P2) and type of protein supplement (P3), and in the short term cross over experiments barley preservation method (C1), type of protein supplement (C2) and time for fishmeal feeding (C3). In all experiments the cows were offered grass silage ad libitum, restricted amounts of cereals and protein feeds, and mineral and vitamin supplements. The sensoric quality of milk was in general high. In the production experiments, milk from cows in HC had slightly higher quality than from cows in LC (significant in P2, p = 0.04). Neither the preservation method of barley (dried or ensiled with molasses), maturity of grass silage or type of protein supplement (fishmeal or peameal) influenced the sensoric milk quality significantly. Also in the cross over experiments no effect of the studied factors was found in milk flavour and odour. Early harvested grass silage gave significantly lower FFA contents than grass silage cut at normal time (P2) and FM gave significantly lower FFA concentrations than peameal (P3). These results indicate that organic farmers with different feeding regimes can produce milk of first class sensoric quality. Also the content of FFA has been low in all experiments (except C1). However, feeding regimes containing low levels of concentrates may reduce milk taste slightly.
Sammendrag
Early stage of grass maturity increased the total concentration of fatty acids (FA) and the concentration of alpha-linolenic acid in organic ley compared to normal stage. Organic ley with red clover resulted in higher concentration of alpha-linolenic acid than white clover. Unexpectedly, increased portions of clover in the ley resulted in lower total concentration of FA. Early harvested ley with red clover may result in forage with high concentrations of alpha-linolenic acid and thus provide a good basis for milk production with a healthy composition of milk fat with a low omega-6/omega-3 FA ratio.
Sammendrag
Det er ikke registrert sammendrag
Forfattere
Svein Ole Borgen Per Ove RøkholtSammendrag
Det er ikke registrert sammendrag
Forfattere
Kjell Mangerud Lars Olav Brandsæter Svein Magne Birkenes Birgitte Henriksen Richard Meadow Theo Ruissen Reidar Holmøy Helge Sjursen Guro BarstadSammendrag
Utgitt av Gan Forlag AS, Oslo. Øvrige bidragsytere: Richardo Holgado, Bonsak Hammeraas, Linnea Wang, Jan Netland, Gunn Mari Strømeng, Linda Gordon Hjeljord, Ingeborg Klingen, Solveig Haukeland, Trond Hofsvang, Atle Wibe, Sverre Kobra og Guro Brodal.
Forfattere
Per Ove Røkholt Svein Ole Borgen Ann-Christin SørensenSammendrag
Det er ikke registrert sammendrag
Forfattere
Roar Moe Erling Fløistad dag-ragnar blystadSammendrag
Det er ikke registrert sammendrag
Forfattere
Bed Mani Dahal Bishal K. Sitaula Roshan M. Bajracharya K. Atreya Alhaji JengSammendrag
Det er ikke registrert sammendrag
Forfattere
Roshan M. Bajracharya Subodh Sharma Bed Mani Dahal Bishal K. Sitaula Alhaji JengSammendrag
Det er ikke registrert sammendrag
Forfattere
Anne-Kristin Løes Johanne E. SchjøthSammendrag
The manuscript is a part of a report on Eruopean research in organic food and farming, published by the ERA net CORE Organic in 2006. 11 European countries which have had significant research programmes in organic food and farming have contributed to the report. For each country, the history and organisiation of this type of research is described, as well as details about completed and on-going research programmes and their funding, research facilities, research strategies and scientific education within organic food and farming.