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Sadri, H.; Ghorbani, G.R.; Rahmani, H.R.; Samie, A.H.; Khorvash, M.; Bruckmaier, R.M. (2009). Chromium supplementation and substitution of barley grain with corn: Effects on performance and lactation in periparturient dairy cows. Journal of dairy science, 92(11), pp. 5411-8. Savoy, Ill.: American Dairy Science Association 10.3168/jds.2008-1877