HC Deb 09 May 1968 vol 764 cc143-4W
Mr. Monro

asked the Secretary of State for Scotland what progress he is making in finding a cure to the disease ulcerative dermal necrosis affecting salmon in Scottish rivers.

Mr. Ross

My Department's scientists are primarily concerned at present to ascertain the precise nature and cause of the disease. These have not yet been established but it is now thought that the disease may be viral in origin. The scientific investigations have been extended in various ways and include transmission experiments and work on tissue culture. Additional staff and facilities have been provided, including an experimental tank system, and the scientists are working in close co-operation with their colleagues in England and Ireland and meet them regularly.

Although it is unlikely that a cure will he found which can be applied directly to rivers or to free, wild fish, it is hoped that the research findings will be of value to hatchery and river management in combatting the disease.

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