|
number of fertilized oocytes, n
|
fertilization rate, n
(%)
|
early-cleaved embryos (30 hpi), n
(%)
|
late-cleaved embryos
(48 hpi), n
(%)
|
blastocyst formation rate, n
(%)
|
blastocysts from early-cleaved embryos at Day 7, n (%)
|
blastocysts from late-cleaved embryos at Day 7, n (%)
|
|---|
|
5794
|
4202
|
1900
|
2302
|
1313
|
716
|
600
|
| |
(72,5)
|
(32,8)a
|
(39,7)b
|
(31,3)
|
(37,7)A
|
(26,1)B
|
- Proportion of embryos cleaved at 30 and 48 h post insemination (hpi) and formation of blastocysts at Day 7 of in vitro culture depending on the time of the first cleavage. Percent of early- and late-cleaved embryos was presented according to the number of fertilized oocytes. Blastocyst formation rate was calculated according to the total number of cleaved embryos. Percent of early- and late- cleaved blastocysts was presented in relation to the total number of embryos cleaved at 30 and 48 hpi, respectively
- a,b Differences between cleavage rates (P < 0.0001)
- A,B Differences in blastocysts formation rates between early and late cleaved group (P < 0.0001)
- P values of cleavage and blastocysts rate determined by Chi-square test with Yates’ correction
