The practicalities and economics of ethologically and ecologically raised double suckled beef

agriculture biologique allaitement animal husbandry animal welfare beef behaviour bienestar animal bovin breeds (animals) carne de res cattle comportamiento comportement economia economics economie farm management farming systems ganado bovino gestion de l'exploitation agricole hatos herds lactancia manejo de fincas meat production organic agriculture precios prices prix production de viande profitability race (animal) razas (animales) rentabilidad suckling troupeau viande bovine