From: Maternal selenium-supplementation at various stages of periconception period: influence on murine blastocyst morphology and implantation status
Groups
n
Actual blastocyst count (Percent Occurrence %)
Good (1)
Fair (2)
Poor (3)
Group I
12
4 (33.3)
6 (50)
2 (16.67)
Group II
15
11 (73.3)
3 (20)
1 (6.7)
Group III
13
5 (38.5)
4 (30.8)
Group IV
20
19 (95)
0
1 (5)