Table 3 In vitro fertilization and development of xenotransplanted oocytes of three rat strains.

From: Generation of rat offspring from ovarian oocytes by xenotransplantation

Rat strain

Oocyte form

Number of (%)

Total eggs

Fertilized eggs*

Unconfirmed eggs**

Degenerated eggs

Transferred eggs***

Recipients

Pups

Implantation scar

Wistar

TCOC

53

10 (18.87)a

29 (54.72)

14 (26.42)

39 (10, 0, 29)

3

0

1

LCOC

56

12 (21.43)b

39 (69.64)

5 (8.93)

51 (10, 2, 39)

3

0

0

SD

TCOC

126

6 (4.76)a

93 (73.81)

27 (21.43)

97# (4, 2, 93)

5

0

0

LCOC

33

6 (18.18)b

21 (63.64)

6 (18.18)

27 (6, 0, 21)

2

1

3

LH

TCOC

68

4 (5.88)a

50 (73.53)

14 (20.59)

54 (1, 3, 50)

3

0

2

LCOC

38

14 (36.84)b

23 (60.53)

1 (2.63)

37 (12, 2, 23)

3

3$

6

  1. *Pronuclear and 2-cell embryos.
  2. **The morphology of the egg after IVF was not confirmed due to the presence of cumulus cells or other cells surrounding the egg.
  3. ***Fertilized eggs and unconfirmed eggs were transplanted into pseudopregnant rat oviducts. The numbers in the parentheses are those of pronuclear stage, 2-cell stage, and unconfirmed eggs, in order.
  4. #The two degenerated eggs were not transplanted.
  5. $Including a fetus found in utero.
  6. a,bNo statistically significant differences found between the two groups a and b (p > 0.05).
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