Marketing (1) Breeding (1) Surveys (1) Specimens (1) Piping (1) Samples (Commerce) (1) Proportion (1) Production (Economic theory) (1) Hypothesis (1) Hand (1) Females (1) Commercial products (1) Butchers (1) Beef (1) Animals (1) Animal breeders (1) Accommodation indorsements (1) Ability (1) Classification (1) Classification (1) Manpower (1) Management (1) Structure (1) Science (1) Quality (1) Procurement (1) Employees (1) Tuberías--Diseño y construcción (1) Animales--Mejora genética (1) Encuestas (1)