amélioration génétique (1) temps (durée) (1) saison (1) élimination (1) perte (1) effet (1) Diagnosis (1) Breeding (1) Rates (1) Ultrasonic imaging (1) Time (1) Synchronization (1) Sheep (1) Rams (1) Progesterone (1) Pregnancy (1) Fertility (1) Ewes (1) Estrus (1) Electrocardiography (1) Diagnosis (1) Days (1) Conception (1) Breeding (1) Rates (1) Pregnancy (1) Fertility (1)