An unlikely alliance of disgruntled Labour backbenchers and Tories defeated the move by 121 votes to 53, a majority of 68.

The surprise result was greeted by loud cheers and waving of Order Papers.

Bad news for goats

Labour's Nick Palmer, a Commons administration committee member, urged MPs to approve the change - which would have saved �30,000 a year and the skin of several goats.

But opposition to it was led by Labour's Brian White (Milton Keynes NE) who said it would almost certainly put 12 people at William Cowley, a parchment and vellum printing company in his constituency, out of work and mean the death of the industry in Britain.

He claimed the committee had not consulted the firm about the change until it was too late, and urged MPs to find a "different way forward that doesn't destroy an industry".

Historic tradtion

Acts of Parliament dating back to 1497 recorded on vellum are currently held in the House of Lords Public Record Office.

Under the proposed change duplicate copies of Acts of Parliament would also no longer be placed in the Public Record Office at Kew, replacing a resolution decreed in 1849 that two copies of every Act should be printed on vellum.

Opening the short debate, Dr Palmer (Broxtowe) said the committee considered the change "appropriate and justifiable".

Continuing to deposit duplicate record copies of both public and private Acts at the Public Record Offices appeared to "serve no useful purpose".

Dr Palmer dismissed concerns about the durability of archive paper compared with vellum as "groundless".

He said vellum and archive paper were both flammable so security could not depend alone on the document.

'No sentiment'

Dr Palmer said he found it "attractive" that Parliament would not be using animal products where it was not necessary, although it was not one of the arguments advanced by the committee report.

"We didn't have sentiment or animal welfare consideration affecting our judgment here, we reached it for practical, you might even say prosaic, reasons," he said.

The BBC's Norman Smith: "This seems to be one battle parliament modernisers have lost"

But Tory Gerald Howarth (Aldershot) said: "I don't believe that this kind of tradition should lightly be tossed aside."