Table I.

Analysis of sperm quality in Tex33^+/+ and Tex33^−/− male mice.

Genotype	Sperm count (×106/ml)	Total sperm motility (%)	Progressive motility (%)	Sperm deformation (%)
+/+ (n=3)	9.02±0.46	80.82±3.69	57.59±5.06	16.31±3.76
−/− (n=3)	8.98±0.35	77.96±4.51	58.26±3.47	18.12±4.08
P-value	0.91	0.47	0.86	0.60

Data are expressed as mean ± standard error of the mean and were analyzed using Student's t-test. Tex33, testis-expressed protein 33; +/+, Tex33^+/+ (wild-type) males; −/−, Tex33^−/− (homozygous) males.