Table 4. Statistics of the distribution of α-tubulin of sheep oocytes in different treatment groups after 22 h of in vitro maturation.

Group	Total number of oocytes	Number of oocytes with normal distribution of α-tubulin	Normal distribution rate of α-tubulin (%)
Control	152	103	68a
10−6 mol/l U0126 group	149	88	59ab
10−4 mol/l U0126 group	155	85	54b

Note: The same superscript letters in the same column indicate no statistically significant differences (p > 0.05); different superscript letters in the same column indicate statistically significant differences (p < 0.05).