There is a significant difference between the different genotypes within different families in freezing behaviour and vocalization. 

A difference was found between the different genotypes within sexes in exploratory behaviour, male domestic type showed more exploratory behaviour than both wild type and heterozygous males. 

When pooling behaviours with high or low fear response domestic type males showed more of them than both the wild type and heterozygous males. Pooled behaviours with high fear response domestic type males showed less than both wild type and heterozygous males. 

Wild type chickens show more dominance than domestic type and heterozygous chickens. They ate more from the meal worms, showed more aggressive behaviours and least fear behaviours. 

There is a difference between the wild type males and the heterozygous males in mean time seconds until first head movement, where the wild type males took longer time.