EN
The aim of this study was to evaluate selected behavioural traits of cows in milking parlours in relation to parameters of milk performance. Behavioural observations were carried out on 93 cows residing in parallel milking parlours. The study investigated such behavioural and performance parameters as the cows' reactivity before and during milking, the time needed to fit the milking cluster, order of entering the milking parlour, ratio of milking location stability, number and stage of lactation, duration of the milking and milk yield. The order of entering the milking parlour is dependent upon the level of the cows' behavioural reactivity and cows occupying the first places in the milking parlour had a high ratio of milking location stability.