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. The magnesium and selenium contained in it, also Carbosol with Carnitine (Elite Pet Health) Creatine for Pigeons & Dogs Boost IT Pigeon Supplement Powder, 500GM, Increases Flight Performance, L Carnitine, B Vitamins, Creatine : Amazon.in: Pet Supplies L Carni I Rockdove 15 ml by Excellence for Pigeons Shopee Philippines When administering L carnitine to pigeons, the frequency and duration depend on the purpose. #pigeon #pigeonsport #pigeonracing