At the beginning of the twentieth century, municipal authorities in England and Wales, and in Scotland, began to develop systems of veterinary public health which encompassed both the welfare of animals and the safety of meat and milk intended for human consumption. This paper examines the motives behind veterinary attempts to extend the integration of human and animal health considerations within the public health framework in the inter-war period. In 1938 the Ministry of Agriculture implemented a national administrative structure for the management of animal diseases which absorbed the veterinary personnel of the municipal authorities, whose own veterinary public health activities largely fell into abeyance. As a result, the ideal of veterinary public health disappeared from British public health practice after 1939, and lost its force as a professional political cause. The mid-century disappearance of animal health from consideration in British public health programmes was one of a complex of historical strands which contributed to the late-twentieth-century emergence of public health crises over such animal-borne diseases as salmonellosis, Escherichia coli infection, and bovine spongiform encephalopathy.