When administering L carnitine to pigeons, the frequency and duration depend on the purpose. #pigeon #pigeonsport #pigeonracing The main ingredient of Carni Speed is L carnitine. This substance, which is similar to a vitamin, plays a central role in the metabolism of pigeons. With a dosage of 10 ml litre drinking water Enhance Pigeon Performance with L Carnitine Supplement Zoopan Vitamino L 100ml Vitamins Amino acids L Carnitine For Pigeon Bird Poultry Racing Pigeon Endurance Supplement RAPIDE ForteX4 Aviform Siegel's ProMaster 16 oz