Table 2. In vitro development of mouse embryos with different concentrations of PTS.

Treated groups	No. of zygotes cultured †	Percentages of embryos developed to [mean (SEM), %]
		2-cell	4-cell	Blastocyst
Control	154	97.8 ± 1.4 a	80.0 ± 1.35 a	44.1 ± 1.68 a
PTS (0.10 μM)	151	96.8 ± 2.3 a	80.2 ± 1.16 ac	44.6 ± 0.79 a
PTS (0.25 μM)	151	98.4 ± 0.9 a	88.1 ± 1.10 b	55.1 ± 0.96 b
PTS (0.50 μM)	152	96.8 ± 0.8 a	77.6 ± 2.13 a	41.6 ± 0.97 a
PTS (0.75 μM)	157	93.2 ± 4.8 a	74.6 ± 1.74 ac	37.1 ± 0.80 a
PTS (1.00 μM)	153	93.7 ± 1.9 a	68.5 ± 1.64 c	33.0 ± 1.09 c

^a–c Values within a column with different superscripts significantly differ (P < 0.05). ^† Experiment was replicated more than 6 times.