Number of sperm in various organs from α1-adrenoceptor triple KO (α1-AR triple-KO) mice. The DSP was estimated by dividing the number of sperm per gram of tissue by 4.84, as described in the Methods section. *P<0.05, ***P<0.001 vs WT. α1-AR triple-KO, α1-adrenoceptor triple KO; DSP, daily sperm production; WT, wild type.