Table 3. Mean concentration ± SEM of the dopamine by horse sex

Sex and number of horses
Geldings (n = 8) Mares (n = 23)
Dopamine (pg/mL) 4.8 ± 0.71a 10.5 ± 1.31b
All data are presented as mean ± SE.
Means with different superscript letters are significantly different (p < 0.05).