Table 3.
Seasonal variation pattern of the cloning outcome
| Season | Temperature (°C)1 | Oocyte maturation (%) | Chance for pregnancy | Chance for delivery | Cloning efficiency (%) | No. of live cloned piglets | No. of healthy cloned piglets |
|---|---|---|---|---|---|---|---|
| Spring |
9.6 |
77.1 |
2 |
4.2 |
3.5 |
2.6 |
1.4 |
| Summer |
18.1 |
74.4 |
1.2 |
3.6 |
3.8 |
3.0 |
0.8* |
| Autumn |
9.2 |
75.8 |
1.8 |
3.1 |
4.0 |
2.6 |
1.4 |
| Winter | 0.1 | 71.3* | 0.6* | 3.7 | 5.3* | 4.3* | 2.2 |
Spring was used as the reference category. For details on the statistical analysis and definition of the cloning benchmarks listed, please see Methods.
* Statistically significant differences (p < 0.05).
1 Average temperature in Munich during the experiments.