amélioration génétique (1) puits (1) spectacle (1) protéine (1) infection (1) ferme (exploitation) (1) Union européenne (1) investigation (1) comparaison (1) analyse (1) taux (1) Comparison (1) Breeding (1) Piglets (1) Aspartate aminotransferase (1) Urea (1) Swine (1) Sows (1) Semen (1) Percentage (1) Infection (1) Immunoglobulins (1) Immunoglobulin M (1) Immunoglobulin G (1) Farms (1) Examinations (1) Enzyme-linked immunosorbent assay (1) Creatinine (1) Breeding (1) Boars (1)