. 2020 Nov 12;7:595856. doi: 10.3389/fvets.2020.595856

Table 2.

Change in serum testosterone concentration (pg/mL) over time (expressed as ratio between basal testosterone concentration at T0 and other sampling times).

Age	N	Ratio T1/T0	Ratio T2/T0	Ratio T8/T0	Ratio T24/T0
2–3 years	9	1.45 ± 0.13^a^,¹	1.82 ± 0.13^b^,¹	2.74 ± 0.28^c^,¹	2.71 ± 0.38^d^,¹
3.5–4 year	15	2.43 ± 0.3^a^,²	3.29 ± 0.48^a^,²	4.7 ± 0.68^b^,¹	4.03 ± 0.82^b^,¹
All males	24	1.82 ± 0.17^a^,^1,2	2.37 ± 0.27^b^,^1,2	3.48 ± 0.36^c^,^1,2	3.21 ± 0.4^c^,¹

Blood sample timing, T0 = before hCG treatment, T1 = 1 h after hCG, T2 = 2 h after hCG, T8 = 8 h after hCG, T24 = 24 h after hCG.

^a,b,c

Values with different subscripts within the same row are statistically different (p < 0.05).

^1,2

Values with different subscripts within the same column are statistically different (p < 0.05).