Table 1 Serum 17β-estradiol levels, uterine index, and skin tail temperature

1.6 ± 0.6^b

1.9 ± 0.7^b

1.7 ± 0.5^b

2.0 ± 0.7^b

7.3 ± 1.1^a

0.49 ± 0.10^b

0.52 ± 0.11^b

0.50 ± 0.12^b

0.56 ± 0.10^b

1.80 ± 0.29^a

29.6 ± 0.17^a

28.8 ± 0.17^ab

29.3 ± 0.15^a

28.2 ± 0.14^b

27.9 ± 0.15^b

52.1 ± 4.6^a

46.2 ± 4.5^b

48.5 ± 4.4^ab

41.1 ± 4.2^c

42.5 ± 4.3^bc

60.5 ± 6.4^a

50.4 ± 5.7^b

55.3 ± 5.6^b

43.7 ± 4.9^c

44.5 ± 4.7^c