Lopera, C Effects of level of dietary cation-anion difference and duration of prepartum feeding on performance and metabolism of dairy cows. [electronic resource] - Journal of dairy science Sep 2018 - 7907-7929 p. digital Publication Type: Journal Article ISSN: 1525-3198 Standard No.: 10.3168/jds.2018-14580 doi Subjects--Topical Terms: Animal Feed--analysisAnimalsAnionsCationsCattle--metabolismDietEnergy Metabolism--physiologyFemaleLactationMilkPregnancy