Ulloa Ramones LA, Ulloa Ramones DA. Evaluation of cortisol and testosterone levels during the semen collection process by electroejaculator in rams with and without tranquilizer. CD [Internet]. 2020Apr.4 [cited 2026Jun.28];4(2):65-6. Available from: https://doi.org/10.33262/cienciadigital.v4i2.1206