Is it a cinderella subject, and is there conflict and imbalance within the 3 Rs? [handling of animals]

alojamiento de animales anaesthesia anestesia animal de laboratoire animal housing animal welfare animales de laboratorio basic needs behaviour besoin fondamental bienestar animal comportamiento comportement destruction d'animaux destruction of animals education environnement especies ethics etica handling immune serum immunserum in vivo experimentation laboratory animals logement des animaux manutention medio ambiente politique de la recherche research policies species suero inmune surgical operations toxicologia toxicologie toxicology