Table 1.
Pig embryos recovered at D24 of pregnancy in sows following artificial insemination (N = 4; C+) or embryo transfer of morulae (N = 4; ET).
| Group | Corpora Lutea (n, mean ± sem) | Transferred Morulae/ET (n) |
Total Recovered Embryos n (%) * |
Normal Recovered Embryos n (%) * |
Delayed Recovered Embryos n (%) ** |
|---|---|---|---|---|---|
| C+ | 94 (23.5 ± 1.0) | - | 76 (80.9) a | 72 (76.6) a | 4 (5.3) c |
| ET | 90 (22.5 ± 1.6) | 92 | 54 (58.7) b | 42 (45.6) b | 12 (22.2) d |
* The percentage of recovered embryos in C+ and ET sows was obtained in relation to the number of corpora lutea counted on each ovary or in relation to the total number of transferred morulae embryos, respectively. ** The percentage of arrested embryos was calculated in relation to the number of total embryos recovered. Different superscripts in the same column indicate differences (a,b: p < 0.003; c,d: p < 0.006; Fisher’s exact test).