Since there are 8 data points available per day and since a
sampling strategy lasts for about 30 weeks, the number of
possible outcomes is very high (830). Therefore, the procedure
was repeated 1000 times for each week day in order to get a
representative sample of the full number of possible esti-
mates. Doing so, 1000 estimated NH3 EFs were obtained for
each weekday. This procedure was also applied to the sce-
nario where a weekly sample was taken on a random working
day instead of on a fixed day, again repeated 1000 times. For
each of the fixed and random weekday strategies, the 1000
values were possible outcomes for the respective sampling
strategy. All possible estimates were collected in histograms
with a bin width of 0.25 kg NH3 year1 (animal place)1