A milk sampling system suitable for use with an automatic milking machine includes a metering pump (2) having an inlet (9) connected to an induction system (3) and an outlet (10) connected to a discharge system (5). The induction system includes a manifold block (4) with passages forming supply paths (12, 13, 15) for connecting the pump inlet to a milk source, a washing fluid source, and a source of pressurised air, and solenoid valves (21, 22, 25) to selectively open and close the supply paths. The discharge systems includes a manifold block (6) with passages forming a plurality discharge paths (27, 29, 31, 33) for successively delivering discrete milk samples for analysis by respective analysing means, and solenoid valves (35, 36, 37, 38) to selectively open and close the discharge paths.
