A liquid mixture of vitamins and amino acids enriched with methionine and cysteine. This product is especially indicated for the moult. Feathers are largely made of hard protein tissue (keratin). During the moult, birds have an increased need of the buildingblocks of this protein, namely methionine and cysteine. Muta-Vit, a combination of these two sulphurous amino acids supplemented with necessary vitamins, ensures a strong, healthy and beautiful plumage.