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 the Oropharma Carmine Mega Forte + L Carnitine 250 ml Deep Fix Pigeon Gvercinler in L Carnitine Vitamin 125 Gr Racing Pigeons: Vita B Forte 100 tablets (Revitalizing, it increases the resistance) Cest Pharma Sedo Plus 1L Hepatic Protector Pigeons Carnispeed (Rohnfried) L Carnitine for Pigeons Racing Pigeon Care