Table 2 Postimplantation development of homotype and heterotype somatic nuclear transfer bovine embryos.

No. of transferred blastocysts

35

68

31

39

No. of recipients

21

43

17

26

Pregnancy at day 20 (%)

14/21 (66.7)^a

26/43 (60.5)^b

10/17 (58.8)^c

14/26 (53.8)^d

Pregnancy at day 60 (%)

10/21 (47.6)^a

21/43 (48.8)^a

7/17 (41.2)^b

9/26 (34.6)^c

Pregnancy at day 90 (%)

9/21 (42.9)^a

18/43 (41.9)^a

4/17 (23.5)^b

6/26 (23.1)^b

Term births (dead)

3/21

5/43

0/17

2/26

Term births (live)

4/21 (19.0)^a

7/43 (16.3)^b

2/17 (11.8)^c

2/26 (7.7)^d

11/64 (17.2)^a

4/43 (9.3)^b