BRITISH BEEF BAN IS OVER, BUT LAMB MAY BE NEXT.(MAIN)

Byline: -- New York Times

BRUSSELS -- Tough new controls on the production of lamb were demanded Monday by European Agriculture Commissioner Franz Fischler, who warned that he had evidence that ``mad cow'' disease could be passed to sheep.

Although BSE is thought to have developed in cattle which consumed feed containing the remains of sheep suffering from scrapie, a brain disease, Fischler said he had received …