test (1) espèce (1) rongeur (1) laboratoire (1) analyse (1) aliment (1) expérience scientifique (1) taux (1) Food (1) Control (1) Selection (1) Mongolian gerbil (1) Work (1) Weights and measures (1) Species (1) Sex (1) Sesame (1) Possibility (1) Paste (1) Mammals (1) Learning (1) Gerbils (1) Frustration (1) Food preferences (1) Food (1) Diet (1) Dates (Fruit) (1) Knowledge and learning (1) Analysis (1) Behavior (1)