Evaluation of the effect of three fixed-time artificial insemination (FTI) protocols on reproductive parameters in milk-producing girolando cow. investigacionysaberes [Internet]. 2024 May 1 [cited 2025 Jun. 6];14(2):119-30. Available from: http://revistasdigitales.utelvt.edu.ec/revista/index.php/investigacion_y_saberes/article/view/267