To the problem of cow's idle milking

The article theoretically confirms the inevitability of cow`s idle milking caused by uneven development of udder quarters and varying duration of cow`s milking in a group. The mathematical dependence of milking machines over-exposure on the udder depending on the number of milking machines used and the time of preparatory-final operations has been determined. To exclude the idle milking the using of milking machine supplied with a device for quaternary control of milking intensity has been offered.The effectiveness of milking machines supplied with devices for quaternary control of the intensity of milk yield has been shown.