Noise in the milking facility has direct implications for on-farm efficiency related to improving cow behaviour and human-animal interactions. Faster movement in response to noise persisted for the first 4 days of the treatment phase, with some evidence of habituation of this response on the fifth day (Waynert et al., 1999). Responses to noise in commercial milking facilities may be influenced by processes of habituation. As dairy cows are regularly exposed to the milking environment, there is opportunity for reduction of any fear responses arising from exposure to noise.