5 of the trial (approximately week 7 of lactation) in all cows
and then remained constant. There was no significant difference
in this pattern attributable to diet (Fig. 5b). Cholesterol
values remained unchanged during the experimental period
in the control cows and in cows fed a diet supplemented
with LNA (n-3), and there was no difference between these
two diets. In cows fed a diet supplemented with LA (n-6),
cholesterol concentrations were increased by week 3 of the
trial (week effect, P < 0.01) and then remained higher
throughout the trial (overall effect diet control compared
with LA (n-6), P < 0.03, Fig. 5c).