** Even dead freeze-dried sperm have been effective in mice.
** Even dead freeze-dried sperm have been effective in mice.
* Abnormalities are frequent.
* Abnormalities are frequent.
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* Power is in the hands of the operator, as it bypasses the process of selection in the female tract.
+
* Power is in the hands of the operator, as it bypasses the process of [[Copulation_-Sperm_in_the_Female_Tract_-_Anatomy_%26_Physiology|selection in the female tract]].