A quarantine at a Devonshire cattle farm continued yesterday as experts investigate the deaths of eight cows. However no more cows have died at Belhaven Farm since the quarantine came into effect last week, and the only appearance of illness on the farm is a bull with a runny nose.Last Thursday Government quarantined the farm after it received a report that cows had died over the course of just three days. All of the cows were no more than a year old.The Department of Environmental Protection has since collected numerous samples from the farm for overseas testing and safely destroyed the carcases.A spokeswoman for the Department of Heath said this week that water quality tests at Belhaven Farm produced no unusual results. The spokeswoman said: “The Department of Environmental Protection and the private veterinary practitioner involved in this case continue several lines of inquiry.”