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(A) Fixation of the male during semen collection process in a Spix's macaw (Cyanopsitta spixii). (B) The head of the probe used for the semen collection. A micro-glass capillary has to be inserted from behind. (C) Micro capillary filled with semen classified ++ (low), +++ (middle) and ++++ (high) in concentration (400× magnification).
