amélioration génétique (1) productivité (1) ordures (1) santé (1) évaluation (1) effet (1) Control (1) Breeding (1) Piglets (1) Birth (1) Symptoms (1) Sows (1) Weight loss (1) Performance (1) Parturition (1) Litters (1) Labor (Obstetrics) (1) Health (1) Fertility (1) Feeds (1) Evaluation (1) Estrus (1) Diarrhea (1) Day (1) Cycles (1) Childbirth (1) Breeding (1) Body weight (1) Bacillus (Bacteria) (1) Spores (1)