Not sure what size sac you're getting for 11E,but I buy Melange Complet pour Volailles Fermiers @ 9E for 20kg from P Vert. The meat birds,layers and geese all get this and do well on it. I could type out everything it contains,but would take ages.......
52% Mais,20% Flocons de Ble,10% Tourteau se Soja,8% Son de Ble,Tourteau de Coiza,Tourteau de Tournesol,Calcium Carbonate,Molasses,Phosphate Monocalcique,Salt,Sodium Bicarb. There's also added Vitamins A,D3 & E,oh,and 1mg/kg of Diclazuril for coccidosis (so watch the geese don't eat too much)
.... the meat birds also get crushed maize added to "yellow" them up for the last 4-5 weeks...... Ree