They were immediately slaughtered after unloading.
The other half of the cows from each feeding group were
submitted to stress conditions (S group; n 516).
Cows were individually transported towards
an unfamiliar farm (15min transport) and unloaded at the
entrance of a labyrinth and taken through three times (28min
accompanied by two purposely noisy experimenters), and
finally they were individually transported to the abattoir
(15-min transport) where they were immediately slaughtered.