Experiment 1 tested, if the observer location in the chicken house or the time-of-day of observation affected the behavioural response of Dutch broiler chicken towards humans. However, due to the outbreak of the bird-flue in Holland in the end of 2014, the age dependent behavioural response of Dutch broiler chicken could not be investigated.

Experiment 2 investigated the repeatability of approach and avoidance behaviour of Danish broiler chicken within days and at different times in the rearing cycle and additionally correlated the results to 1st week mortality and lighting.