[Biological evaluation of new techniques. Studies of animal behaviour]

animal health aplicaciones del ordenador application des ordinateurs behaviour building materials calves cattle sheds cerdas cobertizos para el ganado comportamiento comportement computer applications dairy cows dust feeding systems floors gases gaz piglets pisos plancher polvo (contaminantes) porcelet sanidad animal sows technique d'alimentation ternero truie vacas lecheras veau ventilation