Shirley, J.E.; Scheffel, M.V.; Park, A.F.; Smith, J.F.; Rozell, T.G.; Stevenson, J.S.
(Kansas Agricultural Experiment Station and Cooperative Extension Service., 1998)
Representative MUN values can be obtained
by testing a milk sample before milking,
at AM or PM milking, or with an in-line siphon
sampling device. MUN values obtained from
homogenous milking strings are as accurate ...