Estudios (3) Technology (2) Quality of products (2) Production (Economic theory) (2) Materials (2) Cattle (2) Calidad (2) Ganado vacuno (2) Tecnología (2) Producción (2) Materiales (2) production (2) nécessité (2) Labor (1) Computer science (1) Minors (1) Employees (1) Women (1) Weights and measures (1) Water (1) Trials (1) Time (1) Statistics (1) Serum (1) Quality control (1) Milking (1) Milk--Quality (1) Milk (1) Methodology (1) Measurement (1)