Effect of rumen by-pass selenium on serum reproductive hormone level during estrous cycle in Simmental heifers[J]. Chinese Journal of Eco-Agriculture, 2008, 16(2): 420-425. DOI: 10.3724/SP.J.1011.2008.00420
Citation: Effect of rumen by-pass selenium on serum reproductive hormone level during estrous cycle in Simmental heifers[J]. Chinese Journal of Eco-Agriculture, 2008, 16(2): 420-425. DOI: 10.3724/SP.J.1011.2008.00420

Effect of rumen by-pass selenium on serum reproductive hormone level during estrous cycle in Simmental heifers

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