Article 4

Article 6 of the Convention shall be amended to read:

‘No animal shall be provided with food or liquid in a manner, nor shall such food or liquid contain any substance, which may cause unnecessary suffering or injury.

No other substance with the exception of those given for therapeutic or prophylactic purposes shall be administered to an animal unless it has been demonstrated by scientific studies of animal welfare or established experience that the effect of the substance is not detrimental to the health or welfare of the animal.’