− | It is possible to test milk or urine on the farm for the presence of ketone bodies. These are often dipsticks which change colour in the presence of ketone bodies. | + | It is possible to test milk or urine on the farm for the presence of ketone bodies. These are often dipsticks which change colour in the presence of ketone bodies. False positives can occur with these tests and they should be used in conjunction with clinical signs suggestive of ketosis. |