Shivley, C B Preweaned heifer management on US dairy operations: Part II. Factors associated with colostrum quality and passive transfer status of dairy heifer calves. [electronic resource] - Journal of dairy science Oct 2018 - 9185-9198 p. digital Publication Type: Journal Article ISSN: 1525-3198 Standard No.: 10.3168/jds.2017-14008 doi Subjects--Topical Terms: AnimalsAnimals, NewbornCattle--immunologyColostrum--immunologyFemaleImmunization, Passive--veterinaryImmunoglobulin G--bloodLongitudinal StudiesPregnancyWeaning