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Table 3 Seasonal variation pattern of the cloning outcome

From: Factors influencing the efficiency of generating genetically engineered pigs by nuclear transfer: multi-factorial analysis of a large data set

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

  1. Spring was used as the reference category. For details on the statistical analysis and definition of the cloning benchmarks listed, please see Methods.
  2. * Statistically significant differences (p < 0.05).
  3. 1 Average temperature in Munich during the experiments.
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BMC Biotechnology

ISSN: 1472-6750

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