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Plasma androgen concentrations in reindeer bulls. Reindeer bulls either treated with medroxyprogesterone acetate (MPA) or non-treated controls (CTL) were euthanized on August 28 (2 CTL and 2 MPA bulls) or September 25 (2 CTL and 2 MPA bulls). Blood samples were collected just prior to euthanasia from CTL bulls (n = 2) and MPA bulls (n = 2) at each sampling date. (A) androstenedione. (B) Testosterone.
