Table 1.

Comparative characteristics of superovulated vs. synchronized recipients.

	Superovulated group (n = 13)	Synchronized group (n = 12)
1. Age (month)	98.4 ± 7.7	97.8 ± 9.0
2. Body weight (kg)	3.66 ± 0.45	3.92 ± 0.59
3. *Ultrasonographic findings
3.1 Ovary diameter (mm)
3.1.1 Length	19.62 ± 5.32	Not applicable
3.1.2 Width	10.83 ± 2.73	Not applicable
3.2 Endometrial thickness (mm)	4.48 ± 1.36	5.15 ± 1.58

*Ovary size was measured before oocyte recovery and endometrial thickness was measured before embryo transfer. Data are presented as the means ± standard deviation. No significant differences were detected within rows using the Student’s t-test (p > 0.05).