The use
of extruded linseed during the grazing period should promote an
additive effect between the -LNA contained in the fresh herbage
and that contained in linseed. It could result in greater concentrations
of CLA and -LNA in milk fat than those reported for grazing
ewes or for non-gazing ewes fed diet supplemented with extruded
linseed. However, previous studies reported that extruded linseed
supplementation in the diet of grazing ewes or cows did not result
in an increase of -LNA content in milk fat, suggesting that the -
LNA contained in linseed was almost completely biohydrogenated
in the rumen