HC Deb 21 February 1968 vol 759 cc129-30W
Mr. John Robertson

asked the Minister of Agriculture, Fisheries and Food what substances, additives, hormones and antibiotics are currently in use in feeding and fattening stock for human consumption.

Mr. John Mackie

A number of simple minerals are added to feedingstuffs to provide a balanced diet for farm stock or to correct deficiencies.

Synthetic hormones, mostly hexoestrol, are used as growth promoters almost invariably as implants.

The only scheduled antibiotics that may be used, except under prescription, are penicillin, chlortetracycline and oxytetracycline at low levels for pigs and poultry, excluding adult breeding stock and laying birds. Unscheduled antibiotics such as tylosin and hygromycin are also added for treatment of certain conditions.

Certain chemicals such as sulphona-mides and nitro-furons compounds are sometimes administered in feedingstuffs to control specific infections. These, together with new synthetic hormones and new uses of existing ones and any unscheduled antibiotics, come under the Veterinary Products Safety Precautions Scheme.