Milking system , comprising a milking means with a milking control device and arranged for milking milk from a dairy animal, a milk line in fluid connection with the milking device, a sampling and analysis device arranged to take a sample of the milk from the milk line and to analyse milk from the sample, wherein the milking control device is arranged to control the milking means on the basis of the analysis of the milk sample, wherein the sampling and analysis device comprises: - a control unit for controlling the sampling and analysis device, - a tape reel (17-1, 17-2) provided with a tape that is lengthwise provided with a series of consecutive reagent pads that are configured to provide a detectable response in the presence of at least one substance in the sample, - a tape mover , arranged to move the tape under control of the control device, - a dosing device arranged to supply a part of the sample onto a reagent pad on the tape under the control of the control unit, - a camera device operably connected to the control unit, and arranged to obtain an image of said reagent pad supplied with said droplet of the sample, and - an analysis device to analyse the obtained images to provide to the milking control device an indication of a presence or concentration of said at least one substance characterised in that the camera device has a field of view that contains a plurality of reagent pads of the series of consecutive reagent pads. wherein the sampling and analysis device comprises: - a control unit for controlling the sampling and analysis device, - a tape reel (17-1, 17-2) provided with a tape that is lengthwise provided with a series of consecutive reagent pads that are configured to provide a detectable response in the presence of at least one substance in the sample, - a tape mover , arranged to move the tape under control of the control device, - a dosing device arranged to supply a part of the sample onto a reagent pad on the tape under the control of the control unit, - a camera device operably connected to the control unit, and arranged to obtain an image of said reagent pad supplied with said droplet of the sample, and - an analysis device to analyse the obtained images to provide to the milking control device an indication of a presence or concentration of said at least one substance - a control unit for controlling the sampling and analysis device, - a tape reel (17-1, 17-2) provided with a tape that is lengthwise provided with a series of consecutive reagent pads that are configured to provide a detectable response in the presence of at least one substance in the sample, - a tape mover , arranged to move the tape under control of the control device, - a dosing device arranged to supply a part of the sample onto a reagent pad on the tape under the control of the control unit, - a camera device operably connected to the control unit, and arranged to obtain an image of said reagent pad supplied with said droplet of the sample, and - an analysis device to analyse the obtained images to provide to the milking control device an indication of a presence or concentration of said at least one substance characterised in that the camera device has a field of view that contains a plurality of reagent pads of the series of consecutive reagent pads. <EOS>