Table 2. Effect of different concentrations of baicalin on the development of mouse embryos in vitro.

Baicalin (µg/ml)	No. of 1-cell embryos	2-cell rate (%)	4-cell rate (%)	Morula rate (%)	Blastocyst rate (%)
In vivo control	–	97 ± 1.19 Aa	96 ± 2.43 A	94.7 ± 3.87 A	90.3 ± 5.07 A
0	82	89.6 ± 4.56 Bb	82.1 ± 3.87 B	70.1 ± 2.05 Ba	53.7 ± 3.45 Ba
2	68	92.6 ± 2.87 BCc	86.2 ± 3.36 B	80.4 ± 4.74 C	63.8 ± 2.56 C
4	70	95.7 ± 4.40 ACa	92.9 ± 3.98 A	88.6 ± 5.32 D	78.6 ± 4.08 D
8	67	80.5 ± 3.34 D	72.0 ± 5.08 C	68.3 ± 4.00 Ea	50.0 ± 4.32 Ea

Different uppercase or lowercase letters in a column represent significant differences of P < 0.01 and P < 0.05, respectively.