Method of feeding a liquid-protein supplement with low- to medium-quality hay affects hay waste and cow performance

have less (P = 0.084) hay waste compared with the TNK treatment. In study 2, amount and percentage of hay waste from the POR15 was lower (P < 0.01) compared with the TNK treatment. A treatment by BW block interaction occurred (P < 0.04) and positive differences in BW gain and ADG were observed among treatments (P < 0.01) within BW block. We conclude that treating low- to medium-quality hay with a liquid-protein supplement reduced hay waste but did not increase DMI.