Weerathilake, W. A. D. V., Brassington, A. H., Williams, S. J., Kwong, W. Y., Sinclair, L. A., & Sinclair, K. D. (2019). Added dietary cobalt or vitamin B12, or injecting vitamin B12 does not improve performance or indicators of ketosis in pre- and post-partum Holstein-Friesian dairy cows. Animal, 13(4), 750-759. https://doi.org/10.1017/S175173111800232X