Fant, Petra
- Department of Applied Animal Science and Welfare, Swedish University of Agricultural Sciences
Abstract
This study evaluated the effects of barley and four oat cultivars differing in lipid content, including one high-oil cultivar, and the replacement of rapeseed meal (RSM) with cold-pressed rapeseed cake (RSC), on in vitro ruminal fermentation, degradability, and methane (CH4) production. An in vitro gas production experiment was conducted using a 5 x 3 factorial arrangement of treatments with four 48-h runs. Treatments included a barley mixture [22.6 g crude fat/kg dry matter (DM)] and the oat cultivars Sonja, Niklas, Perttu, and the high-oil oat cultivar Fatima (41.2, 53.7, 58.5, and 81.2 g crude fat/kg DM, respectively), each combined with three levels of RSC (0, 50, and 100 % of protein feed). The basal diet consisted of grass silage (550 g/kg diet DM). Dynamic rumen models were applied to in vitro gas data to predict in vivo CH4 production. Predicted CH4 production (mL/ g DM) was 8.3, 9.0, and 12.6 % lower, respectively, for Niklas, Perttu, and Fatima compared with barley (P
Keywords
Alternative feeds; Cereal grains; High-oil oats; Ruminants; Sustainability
Published in
Journal of Agriculture and Food Research
2025, volume: 24, article number: 102385
SLU Authors
Chagas, Juana
- Department of Applied Animal Science and Welfare, Swedish University of Agricultural Sciences
- Department of Applied Animal Science and Welfare, Swedish University of Agricultural Sciences
Ramin, Mohammad
- Department of Applied Animal Science and Welfare, Swedish University of Agricultural Sciences
- Department of Applied Animal Science and Welfare, Swedish University of Agricultural Sciences
UKÄ Subject classification
Environmental Sciences and Nature Conservation
Animal and Dairy Science
Publication identifier
- DOI: https://doi.org/10.1016/j.jafr.2025.102385
Permanent link to this page (URI)
https://res.slu.se/id/publ/144065