Immune responses in lactating Holstein cows supplemented with Cu, Mn, and Zn as sulfates or methionine hydroxy analogue chelates

Autor: Nemec, L.M., Richards, J.D., Atwell, C.A., Diaz, D.E., Zanton, G.I., Gressley, T.F.
Zdroj: In Journal of Dairy Science August 2012 95(8):4568-4577
Databáze: ScienceDirect