L Carnitine Magnesium Calcium Complex (Pigeon Vitality) The main ingredient of Carni Speed is L carnitine. This vitamin like substance has a central role in the fat metabolism of pigeons. With a dosage of 10 ml litre of drinking water, the pigeons receive Carmine Mega Forte L Carnitine Supplement BirdAgents.pk The Racing Pigeons Supplies Store: Dr. Brockamp C M K 500 ml (Carnitin Magnesium Complex). Racing Pigeons Supplies