Effect of Prepartum DCAD Strategy and Level of Dietary Calcium on Postpartum Calcium Status and Performance of Multiparous Holstein Cows
Graef, G.M.; Kerwin, A.L.; Ferro, L.N.; Ordaz-Puga, S.; Ryan, C.M.; Westhoff, T.A.; Barbano, D.M.; Glosson, K.M.; Zanzalari, K.P.; Chapman, J.D.; Overton, T.R.
Periparturient hypocalcemia can be mitigated by reducing prepartum dietary DCAD; however, neither the extent of DCAD adjustment nor the level of dietary Ca fed with negative DCAD have been evaluated fully. This project aimed to compare the effects of two levels of prepartum dietary anion supplementation (urinary pH), two levels of dietary calcium, and the interactions, on parameters of calcium metabolism, health, and milk performance of transition dairy cows.
Transition; DCAD; Ca; Hypocalcemia
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