Table 1 Changes in pregnancy rate during ageing
From: Increases in norepinephrine release and ovarian cyst formation during ageing in the rat
Age rats (months) | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
|---|---|---|---|---|---|---|---|
Pregnancies (%) | 69.8 | 92.1 | 85.7 | 69.8 | 50.8 | 22.2 | 4.8 |
Number of pups born live | 8.3 ± 0.6 | 10.7 ± 0.42 | 9.7 ± 0.43 | 6.8 ± 0.53 | 4.9 ± 0.87 | 2.6 ± 0.63 | 0.5 ± 1.89 |