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Horn M, Gunn P, Van Emon M, Lemenager R, Burgess J, Pyatt NA, Lake SL. Effects of natural (RRR alpha-tocopherol acetate) or synthetic (all-rac alpha-tocopherol acetate) vitamin E supplementation on reproductive efficiency in beef cows. J Anim Sci. 2010 Sep;88(9):3121–7. doi: 10.2527/jas.2009-1807. PMID: 20495121. |