[Lohmann Tradition - Practical experience and development perspectives]

abnormal behaviour animal breeding besoin nutritionnel comportamiento anormal comportement anormal crianza en el suelo crianza libre eggs energia energie energy feed intake floor husbandry free range husbandry gallina ponedora huevos layer chickens laying performance mejoramiento animal necesidades de nutrientes nutritional requirements oeuf performance de ponte peso poids poule pondeuse prise alimentaire (animaux) selection criteria weight