Biofilm inhibiting compositions enhancing weight gain in livestock

A non-human animal feed comprising

• a grist or mixture of non-human animal's basal feed components comprising one or more iron compounds comprising an acid selected from the group consisting of α-hydroxy acid, amino acid, amino carboxylic acid and diacid, the iron compound being present in a concentration between 10 μM and 2 mM or between 0.01 g/Kg and 20 g/Kg of the basal feed.

A feed supplement comprising one or more iron compounds comprising an acid selected from the group consisting of α-hydroxy acid, amino acid, amino carboxylic acid and diacid, other than ferric glycinate and ferric methionate,

• for addition to a non-human animal feed or animal drinking water at a concentration between 0.1 g/kg and 5 g/kg of the feed or a concentration between 0.001 to 20 g of the one or more compounds per liter (L) of water.

A method of making a non-human animal feed comprising

• a grist or mixture of non-human animal's basal feed components comprising adding to the feed on or more iron compounds comprising an acid selected from the group consisting of α-hydroxy acid, amino acid, amino carboxylic acid and diacid, at a concentration between 10 μM and 2 mM or between 0.01 g/Kg and 20 g/Kg of the basal feed.