Division 4 In the category ‘zootechnical additives’, the following functional groups are included:

digestibility enhancers: substances which, when fed to animals, increase the digestibility of the diet, through action on target feed materials;

gut flora stabilisers: micro-organisms or other chemically defined substances, which, when fed to animals, have a positive effect on the gut flora;

substances which favourably affect the environment;

other zootechnical additivesF1;

F2physiological condition stabilisers: substances or, when applicable microorganisms, which, when fed to animals in good health, favourably affect their physiological condition, including their resilience to stress factors.