IL10 and mastitis: By contrast, bovine subclinical mastitis studies that reported IL-10 in pg/mL consistently yielded low milk concentrations near the lower end of kit standards, for example, approximately 43.5 pg/mL with a 15.6–1000 pg/mL calibration range, values that are an order of magnitude below our FF range and generally similar to or lower than our serum values [3,29].